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cve-2020-1730
Vulnerability from cvelistv5
Published
2020-04-13 00:00
Modified
2024-08-04 06:46
Severity ?
EPSS score ?
Summary
A flaw was found in libssh versions before 0.8.9 and before 0.9.4 in the way it handled AES-CTR (or DES ciphers if enabled) ciphers. The server or client could crash when the connection hasn't been fully initialized and the system tries to cleanup the ciphers when closing the connection. The biggest threat from this vulnerability is system availability.
References
Impacted products
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wid-sec-w-2024-0439
Vulnerability from csaf_certbund
Published
2020-04-08 22:00
Modified
2024-05-07 22:00
Summary
libssh: Schwachstelle ermöglicht Denial of Service
Notes
Das BSI ist als Anbieter für die eigenen, zur Nutzung bereitgestellten Inhalte nach den allgemeinen Gesetzen verantwortlich. Nutzerinnen und Nutzer sind jedoch dafür verantwortlich, die Verwendung und/oder die Umsetzung der mit den Inhalten bereitgestellten Informationen sorgfältig im Einzelfall zu prüfen.
Produktbeschreibung
libssh ist eine C Bibliothek für das Anbieten von SSH Diensten auf Client- und Serverseite. Sie kann genutzt werden, um aus der Ferne Programme auszuführen, Dateien zu übertragen oder als sicherer und transparenter Tunnel für entfernte Programme genutzt werden.
Angriff
Ein entfernter, anonymer Angreifer kann eine Schwachstelle in libssh ausnutzen, um einen Denial of Service Angriff durchzuführen.
Betroffene Betriebssysteme
- Linux
{ "document": { "aggregate_severity": { "text": "mittel" }, "category": "csaf_base", "csaf_version": "2.0", "distribution": { "tlp": { "label": "WHITE", "url": "https://www.first.org/tlp/" } }, "lang": "de-DE", "notes": [ { "category": "legal_disclaimer", "text": "Das BSI ist als Anbieter f\u00fcr die eigenen, zur Nutzung bereitgestellten Inhalte nach den allgemeinen Gesetzen verantwortlich. Nutzerinnen und Nutzer sind jedoch daf\u00fcr verantwortlich, die Verwendung und/oder die Umsetzung der mit den Inhalten bereitgestellten Informationen sorgf\u00e4ltig im Einzelfall zu pr\u00fcfen." }, { "category": "description", "text": "libssh ist eine C Bibliothek f\u00fcr das Anbieten von SSH Diensten auf Client- und Serverseite. Sie kann genutzt werden, um aus der Ferne Programme auszuf\u00fchren, Dateien zu \u00fcbertragen oder als sicherer und transparenter Tunnel f\u00fcr entfernte Programme genutzt werden.", "title": "Produktbeschreibung" }, { "category": "summary", "text": "Ein entfernter, anonymer Angreifer kann eine Schwachstelle in libssh ausnutzen, um einen Denial of Service Angriff durchzuf\u00fchren.", "title": "Angriff" }, { "category": "general", "text": "- Linux", "title": "Betroffene Betriebssysteme" } ], "publisher": { "category": "other", "contact_details": "csaf-provider@cert-bund.de", "name": "Bundesamt f\u00fcr Sicherheit in der Informationstechnik", "namespace": "https://www.bsi.bund.de" }, "references": [ { "category": "self", "summary": "WID-SEC-W-2024-0439 - CSAF Version", "url": "https://wid.cert-bund.de/.well-known/csaf/white/2020/wid-sec-w-2024-0439.json" }, { "category": "self", "summary": "WID-SEC-2024-0439 - Portal Version", "url": "https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2024-0439" }, { "category": "external", "summary": "libssh Security Advisory vom 2020-04-08", "url": "https://www.libssh.org/security/advisories/CVE-2020-1730.txt" }, { "category": "external", "summary": "Ubuntu Security Notice USN-4327-1 vom 2020-04-09", "url": "https://usn.ubuntu.com/4327-1/" }, { "category": "external", "summary": "Arch Linux Security Advisory ASA-202004-11 vom 2020-04-24", "url": "https://security.archlinux.org/ASA-202004-11" }, { "category": "external", "summary": "F5 Security Advisory K05295501 vom 2020-07-14", "url": "https://support.f5.com/csp/article/K05295501" }, { "category": "external", "summary": "Red Hat Security Advisory RHSA-2021:2021 vom 2021-05-19", "url": "https://access.redhat.com/errata/RHSA-2021:2021" }, { "category": "external", "summary": "Red Hat Security Advisory RHSA-2020:4545 vom 2020-11-04", "url": "https://access.redhat.com/errata/RHSA-2020:4545" }, { "category": "external", "summary": "Red Hat Security Advisory RHSA-2020:5149 vom 2020-11-18", "url": "https://access.redhat.com/errata/RHSA-2020:5149" }, { "category": "external", "summary": "Red Hat Security Advisory RHSA-2020:5218 vom 2020-11-24", "url": "https://access.redhat.com/errata/RHSA-2020:5218" }, { "category": "external", "summary": "AVAYA Security Advisory ASA-2020-175 vom 2020-12-07", "url": "https://downloads.avaya.com/css/P8/documents/101072800" }, { "category": "external", "summary": "Red Hat Security Advisory RHSA-2021:0146 vom 2021-01-14", "url": "https://access.redhat.com/errata/RHSA-2021:0146" }, { "category": "external", "summary": "Red Hat Security Advisory RHSA-2020:5633 vom 2021-02-24", "url": "https://access.redhat.com/errata/RHSA-2020:5633" }, { "category": "external", "summary": "Red Hat Security Advisory RHSA-2020:5635 vom 2021-02-24", "url": "https://access.redhat.com/errata/RHSA-2020:5635" }, { "category": "external", "summary": "Red Hat Security Advisory RHSA-2021:3016 vom 2021-08-06", "url": "https://access.redhat.com/errata/RHSA-2021:3016" }, { "category": "external", "summary": "Red Hat Security Advisory RHSA-2022:0056 vom 2022-03-10", "url": "https://access.redhat.com/errata/RHSA-2022:0056" }, { "category": "external", "summary": "SUSE Security Update SUSE-SU-2024:0539-1 vom 2024-02-20", "url": "https://lists.suse.com/pipermail/sle-security-updates/2024-February/017974.html" }, { "category": "external", "summary": "Dell Security Advisory DSA-2024-198 vom 2024-05-08", "url": "https://www.dell.com/support/kbdoc/000224827/dsa-2024-=" } ], "source_lang": "en-US", "title": "libssh: Schwachstelle erm\u00f6glicht Denial of Service", "tracking": { "current_release_date": "2024-05-07T22:00:00.000+00:00", "generator": { "date": "2024-05-08T08:11:05.222+00:00", "engine": { "name": "BSI-WID", "version": "1.3.0" } }, "id": "WID-SEC-W-2024-0439", "initial_release_date": "2020-04-08T22:00:00.000+00:00", "revision_history": [ { "date": "2020-04-08T22:00:00.000+00:00", "number": "1", "summary": "Initiale Fassung" }, { "date": "2020-04-13T22:00:00.000+00:00", "number": "2", "summary": "Neue Updates von Ubuntu aufgenommen" }, { "date": "2020-04-23T22:00:00.000+00:00", "number": "3", "summary": "Neue Updates von Arch Linux aufgenommen" }, { "date": "2020-07-14T22:00:00.000+00:00", "number": "4", "summary": "Neue Updates von F5 aufgenommen" }, { "date": "2020-11-03T23:00:00.000+00:00", "number": "5", "summary": "Neue Updates von Red Hat aufgenommen" }, { "date": "2020-11-18T23:00:00.000+00:00", "number": "6", "summary": "Neue Updates von Red Hat aufgenommen" }, { "date": "2020-11-24T23:00:00.000+00:00", "number": "7", "summary": "Neue Updates von Red Hat aufgenommen" }, { "date": "2020-12-08T23:00:00.000+00:00", "number": "8", "summary": "Neue Updates von AVAYA aufgenommen" }, { "date": "2021-01-14T23:00:00.000+00:00", "number": "9", "summary": "Neue Updates von Red Hat aufgenommen" }, { "date": "2021-02-24T23:00:00.000+00:00", "number": "10", "summary": "Neue Updates von Red Hat aufgenommen" }, { "date": "2021-05-18T22:00:00.000+00:00", "number": "11", "summary": "Neue Updates von Red Hat aufgenommen" }, { "date": "2021-08-05T22:00:00.000+00:00", "number": "12", "summary": "Neue Updates von Red Hat aufgenommen" }, { "date": "2022-03-10T23:00:00.000+00:00", "number": "13", "summary": "Neue Updates von Red Hat aufgenommen" }, { "date": "2024-02-20T23:00:00.000+00:00", "number": "14", "summary": "Neue Updates von SUSE aufgenommen" }, { "date": "2024-05-07T22:00:00.000+00:00", "number": "15", "summary": "Neue Updates von Dell aufgenommen" } ], "status": "final", "version": "15" } }, "product_tree": { "branches": [ { "branches": [ { "category": "product_name", "name": "Avaya Aura Experience Portal", "product": { "name": "Avaya Aura Experience Portal", "product_id": "T015519", "product_identification_helper": { "cpe": "cpe:/a:avaya:aura_experience_portal:-" } } } ], "category": "vendor", "name": "Avaya" }, { "branches": [ { "branches": [ { "category": "product_version", "name": "virtual", "product": { "name": "Dell NetWorker virtual", "product_id": "T034583", "product_identification_helper": { "cpe": "cpe:/a:dell:networker:virtual" } } } ], "category": "product_name", "name": "NetWorker" } ], "category": "vendor", "name": "Dell" }, { "branches": [ { "category": "product_name", "name": "EMC Avamar", "product": { "name": "EMC Avamar", "product_id": "T014381", "product_identification_helper": { "cpe": "cpe:/a:emc:avamar:-" } } } ], "category": "vendor", "name": "EMC" }, { "branches": [ { "category": "product_name", "name": "F5 BIG-IP", "product": { "name": "F5 BIG-IP", "product_id": "T001663", "product_identification_helper": { "cpe": "cpe:/a:f5:big-ip:-" } } } ], "category": "vendor", "name": "F5" }, { "branches": [ { "category": "product_name", "name": "Open Source Arch Linux", "product": { "name": "Open Source Arch Linux", "product_id": "T013312", "product_identification_helper": { "cpe": "cpe:/o:archlinux:archlinux:-" } } }, { "branches": [ { "category": "product_version_range", "name": "\u003c0.8.9", "product": { "name": "Open Source libssh \u003c0.8.9", "product_id": "T016236", "product_identification_helper": { "cpe": "cpe:/a:libssh:libssh:0.8.9" } } }, { "category": "product_version_range", "name": "\u003c0.9.4", "product": { "name": "Open Source libssh \u003c0.9.4", "product_id": "T016237", "product_identification_helper": { "cpe": "cpe:/a:libssh:libssh:0.9.4" } } } ], "category": "product_name", "name": "libssh" } ], "category": "vendor", "name": "Open Source" }, { "branches": [ { "category": "product_name", "name": "Red Hat Enterprise Linux", "product": { "name": "Red Hat Enterprise Linux", "product_id": "67646", "product_identification_helper": { "cpe": "cpe:/o:redhat:enterprise_linux:-" } } } ], "category": "vendor", "name": "Red Hat" }, { "branches": [ { "category": "product_name", "name": "SUSE Linux", "product": { "name": "SUSE Linux", "product_id": "T002207", "product_identification_helper": { "cpe": "cpe:/o:suse:suse_linux:-" } } } ], "category": "vendor", "name": "SUSE" }, { "branches": [ { "category": "product_name", "name": "Ubuntu Linux", "product": { "name": "Ubuntu Linux", "product_id": "T000126", "product_identification_helper": { "cpe": "cpe:/o:canonical:ubuntu_linux:-" } } } ], "category": "vendor", "name": "Ubuntu" } ] }, "vulnerabilities": [ { "cve": "CVE-2020-1730", "notes": [ { "category": "description", "text": "Es existiert eine Schwachstelle in libssh, wenn nicht vollst\u00e4ndig initialisierte AES-CTR-Chiffren verwendet werden. Ein b\u00f6swilliger Client oder Server kann diese Schwachstelle ausnutzen, um die Gegenstelle zum Absturz zu bringen, wenn diese versucht, die AES-CTR-Chiffren beim Schlie\u00dfen der Verbindung zu bereinigen." } ], "product_status": { "known_affected": [ "T015519", "T014381", "T002207", "67646", "T000126", "T013312", "T034583", "T001663" ] }, "release_date": "2020-04-08T22:00:00Z", "title": "CVE-2020-1730" } ] }
WID-SEC-W-2024-0439
Vulnerability from csaf_certbund
Published
2020-04-08 22:00
Modified
2024-05-07 22:00
Summary
libssh: Schwachstelle ermöglicht Denial of Service
Notes
Das BSI ist als Anbieter für die eigenen, zur Nutzung bereitgestellten Inhalte nach den allgemeinen Gesetzen verantwortlich. Nutzerinnen und Nutzer sind jedoch dafür verantwortlich, die Verwendung und/oder die Umsetzung der mit den Inhalten bereitgestellten Informationen sorgfältig im Einzelfall zu prüfen.
Produktbeschreibung
libssh ist eine C Bibliothek für das Anbieten von SSH Diensten auf Client- und Serverseite. Sie kann genutzt werden, um aus der Ferne Programme auszuführen, Dateien zu übertragen oder als sicherer und transparenter Tunnel für entfernte Programme genutzt werden.
Angriff
Ein entfernter, anonymer Angreifer kann eine Schwachstelle in libssh ausnutzen, um einen Denial of Service Angriff durchzuführen.
Betroffene Betriebssysteme
- Linux
{ "document": { "aggregate_severity": { "text": "mittel" }, "category": "csaf_base", "csaf_version": "2.0", "distribution": { "tlp": { "label": "WHITE", "url": "https://www.first.org/tlp/" } }, "lang": "de-DE", "notes": [ { "category": "legal_disclaimer", "text": "Das BSI ist als Anbieter f\u00fcr die eigenen, zur Nutzung bereitgestellten Inhalte nach den allgemeinen Gesetzen verantwortlich. Nutzerinnen und Nutzer sind jedoch daf\u00fcr verantwortlich, die Verwendung und/oder die Umsetzung der mit den Inhalten bereitgestellten Informationen sorgf\u00e4ltig im Einzelfall zu pr\u00fcfen." }, { "category": "description", "text": "libssh ist eine C Bibliothek f\u00fcr das Anbieten von SSH Diensten auf Client- und Serverseite. Sie kann genutzt werden, um aus der Ferne Programme auszuf\u00fchren, Dateien zu \u00fcbertragen oder als sicherer und transparenter Tunnel f\u00fcr entfernte Programme genutzt werden.", "title": "Produktbeschreibung" }, { "category": "summary", "text": "Ein entfernter, anonymer Angreifer kann eine Schwachstelle in libssh ausnutzen, um einen Denial of Service Angriff durchzuf\u00fchren.", "title": "Angriff" }, { "category": "general", "text": "- Linux", "title": "Betroffene Betriebssysteme" } ], "publisher": { "category": "other", "contact_details": "csaf-provider@cert-bund.de", "name": "Bundesamt f\u00fcr Sicherheit in der Informationstechnik", "namespace": "https://www.bsi.bund.de" }, "references": [ { "category": "self", "summary": "WID-SEC-W-2024-0439 - CSAF Version", "url": "https://wid.cert-bund.de/.well-known/csaf/white/2020/wid-sec-w-2024-0439.json" }, { "category": "self", "summary": "WID-SEC-2024-0439 - Portal Version", "url": "https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2024-0439" }, { "category": "external", "summary": "libssh Security Advisory vom 2020-04-08", "url": "https://www.libssh.org/security/advisories/CVE-2020-1730.txt" }, { "category": "external", "summary": "Ubuntu Security Notice USN-4327-1 vom 2020-04-09", "url": "https://usn.ubuntu.com/4327-1/" }, { "category": "external", "summary": "Arch Linux Security Advisory ASA-202004-11 vom 2020-04-24", "url": "https://security.archlinux.org/ASA-202004-11" }, { "category": "external", "summary": "F5 Security Advisory K05295501 vom 2020-07-14", "url": "https://support.f5.com/csp/article/K05295501" }, { "category": "external", "summary": "Red Hat Security Advisory RHSA-2021:2021 vom 2021-05-19", "url": "https://access.redhat.com/errata/RHSA-2021:2021" }, { "category": "external", "summary": "Red Hat Security Advisory RHSA-2020:4545 vom 2020-11-04", "url": "https://access.redhat.com/errata/RHSA-2020:4545" }, { "category": "external", "summary": "Red Hat Security Advisory RHSA-2020:5149 vom 2020-11-18", "url": "https://access.redhat.com/errata/RHSA-2020:5149" }, { "category": "external", "summary": "Red Hat Security Advisory RHSA-2020:5218 vom 2020-11-24", "url": "https://access.redhat.com/errata/RHSA-2020:5218" }, { "category": "external", "summary": "AVAYA Security Advisory ASA-2020-175 vom 2020-12-07", "url": "https://downloads.avaya.com/css/P8/documents/101072800" }, { "category": "external", "summary": "Red Hat Security Advisory RHSA-2021:0146 vom 2021-01-14", "url": "https://access.redhat.com/errata/RHSA-2021:0146" }, { "category": "external", "summary": "Red Hat Security Advisory RHSA-2020:5633 vom 2021-02-24", "url": "https://access.redhat.com/errata/RHSA-2020:5633" }, { "category": "external", "summary": "Red Hat Security Advisory RHSA-2020:5635 vom 2021-02-24", "url": "https://access.redhat.com/errata/RHSA-2020:5635" }, { "category": "external", "summary": "Red Hat Security Advisory RHSA-2021:3016 vom 2021-08-06", "url": "https://access.redhat.com/errata/RHSA-2021:3016" }, { "category": "external", "summary": "Red Hat Security Advisory RHSA-2022:0056 vom 2022-03-10", "url": "https://access.redhat.com/errata/RHSA-2022:0056" }, { "category": "external", "summary": "SUSE Security Update SUSE-SU-2024:0539-1 vom 2024-02-20", "url": "https://lists.suse.com/pipermail/sle-security-updates/2024-February/017974.html" }, { "category": "external", "summary": "Dell Security Advisory DSA-2024-198 vom 2024-05-08", "url": "https://www.dell.com/support/kbdoc/000224827/dsa-2024-=" } ], "source_lang": "en-US", "title": "libssh: Schwachstelle erm\u00f6glicht Denial of Service", "tracking": { "current_release_date": "2024-05-07T22:00:00.000+00:00", "generator": { "date": "2024-05-08T08:11:05.222+00:00", "engine": { "name": "BSI-WID", "version": "1.3.0" } }, "id": "WID-SEC-W-2024-0439", "initial_release_date": "2020-04-08T22:00:00.000+00:00", "revision_history": [ { "date": "2020-04-08T22:00:00.000+00:00", "number": "1", "summary": "Initiale Fassung" }, { "date": "2020-04-13T22:00:00.000+00:00", "number": "2", "summary": "Neue Updates von Ubuntu aufgenommen" }, { "date": "2020-04-23T22:00:00.000+00:00", "number": "3", "summary": "Neue Updates von Arch Linux aufgenommen" }, { "date": "2020-07-14T22:00:00.000+00:00", "number": "4", "summary": "Neue Updates von F5 aufgenommen" }, { "date": "2020-11-03T23:00:00.000+00:00", "number": "5", "summary": "Neue Updates von Red Hat aufgenommen" }, { "date": "2020-11-18T23:00:00.000+00:00", "number": "6", "summary": "Neue Updates von Red Hat aufgenommen" }, { "date": "2020-11-24T23:00:00.000+00:00", "number": "7", "summary": "Neue Updates von Red Hat aufgenommen" }, { "date": "2020-12-08T23:00:00.000+00:00", "number": "8", "summary": "Neue Updates von AVAYA aufgenommen" }, { "date": "2021-01-14T23:00:00.000+00:00", "number": "9", "summary": "Neue Updates von Red Hat aufgenommen" }, { "date": "2021-02-24T23:00:00.000+00:00", "number": "10", "summary": "Neue Updates von Red Hat aufgenommen" }, { "date": "2021-05-18T22:00:00.000+00:00", "number": "11", "summary": "Neue Updates von Red Hat aufgenommen" }, { "date": "2021-08-05T22:00:00.000+00:00", "number": "12", "summary": "Neue Updates von Red Hat aufgenommen" }, { "date": "2022-03-10T23:00:00.000+00:00", "number": "13", "summary": "Neue Updates von Red Hat aufgenommen" }, { "date": "2024-02-20T23:00:00.000+00:00", "number": "14", "summary": "Neue Updates von SUSE aufgenommen" }, { "date": "2024-05-07T22:00:00.000+00:00", "number": "15", "summary": "Neue Updates von Dell aufgenommen" } ], "status": "final", "version": "15" } }, "product_tree": { "branches": [ { "branches": [ { "category": "product_name", "name": "Avaya Aura Experience Portal", "product": { "name": "Avaya Aura Experience Portal", "product_id": "T015519", "product_identification_helper": { "cpe": "cpe:/a:avaya:aura_experience_portal:-" } } } ], "category": "vendor", "name": "Avaya" }, { "branches": [ { "branches": [ { "category": "product_version", "name": "virtual", "product": { "name": "Dell NetWorker virtual", "product_id": "T034583", "product_identification_helper": { "cpe": "cpe:/a:dell:networker:virtual" } } } ], "category": "product_name", "name": "NetWorker" } ], "category": "vendor", "name": "Dell" }, { "branches": [ { "category": "product_name", "name": "EMC Avamar", "product": { "name": "EMC Avamar", "product_id": "T014381", "product_identification_helper": { "cpe": "cpe:/a:emc:avamar:-" } } } ], "category": "vendor", "name": "EMC" }, { "branches": [ { "category": "product_name", "name": "F5 BIG-IP", "product": { "name": "F5 BIG-IP", "product_id": "T001663", "product_identification_helper": { "cpe": "cpe:/a:f5:big-ip:-" } } } ], "category": "vendor", "name": "F5" }, { "branches": [ { "category": "product_name", "name": "Open Source Arch Linux", "product": { "name": "Open Source Arch Linux", "product_id": "T013312", "product_identification_helper": { "cpe": "cpe:/o:archlinux:archlinux:-" } } }, { "branches": [ { "category": "product_version_range", "name": "\u003c0.8.9", "product": { "name": "Open Source libssh \u003c0.8.9", "product_id": "T016236", "product_identification_helper": { "cpe": "cpe:/a:libssh:libssh:0.8.9" } } }, { "category": "product_version_range", "name": "\u003c0.9.4", "product": { "name": "Open Source libssh \u003c0.9.4", "product_id": "T016237", "product_identification_helper": { "cpe": "cpe:/a:libssh:libssh:0.9.4" } } } ], "category": "product_name", "name": "libssh" } ], "category": "vendor", "name": "Open Source" }, { "branches": [ { "category": "product_name", "name": "Red Hat Enterprise Linux", "product": { "name": "Red Hat Enterprise Linux", "product_id": "67646", "product_identification_helper": { "cpe": "cpe:/o:redhat:enterprise_linux:-" } } } ], "category": "vendor", "name": "Red Hat" }, { "branches": [ { "category": "product_name", "name": "SUSE Linux", "product": { "name": "SUSE Linux", "product_id": "T002207", "product_identification_helper": { "cpe": "cpe:/o:suse:suse_linux:-" } } } ], "category": "vendor", "name": "SUSE" }, { "branches": [ { "category": "product_name", "name": "Ubuntu Linux", "product": { "name": "Ubuntu Linux", "product_id": "T000126", "product_identification_helper": { "cpe": "cpe:/o:canonical:ubuntu_linux:-" } } } ], "category": "vendor", "name": "Ubuntu" } ] }, "vulnerabilities": [ { "cve": "CVE-2020-1730", "notes": [ { "category": "description", "text": "Es existiert eine Schwachstelle in libssh, wenn nicht vollst\u00e4ndig initialisierte AES-CTR-Chiffren verwendet werden. Ein b\u00f6swilliger Client oder Server kann diese Schwachstelle ausnutzen, um die Gegenstelle zum Absturz zu bringen, wenn diese versucht, die AES-CTR-Chiffren beim Schlie\u00dfen der Verbindung zu bereinigen." } ], "product_status": { "known_affected": [ "T015519", "T014381", "T002207", "67646", "T000126", "T013312", "T034583", "T001663" ] }, "release_date": "2020-04-08T22:00:00Z", "title": "CVE-2020-1730" } ] }
rhsa-2020_4545
Vulnerability from csaf_redhat
Published
2020-11-04 01:00
Modified
2024-11-22 15:14
Summary
Red Hat Security Advisory: libssh security, bug fix, and enhancement update
Notes
Topic
An update for libssh is now available for Red Hat Enterprise Linux 8.
Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.
Details
libssh is a library which implements the SSH protocol. It can be used to implement client and server applications.
The following packages have been upgraded to a later upstream version: libssh (0.9.4). (BZ#1804797)
Security Fix(es):
* libssh: denial of service when handling AES-CTR (or DES) ciphers (CVE-2020-1730)
* libssh: unsanitized location in scp could lead to unwanted command execution (CVE-2019-14889)
For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.
Additional Changes:
For detailed information on changes in this release, see the Red Hat Enterprise Linux 8.3 Release Notes linked from the References section.
Terms of Use
This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original.
{ "document": { "aggregate_severity": { "namespace": "https://access.redhat.com/security/updates/classification/", "text": "Moderate" }, "category": "csaf_security_advisory", "csaf_version": "2.0", "distribution": { "text": "Copyright \u00a9 Red Hat, Inc. All rights reserved.", "tlp": { "label": "WHITE", "url": "https://www.first.org/tlp/" } }, "lang": "en", "notes": [ { "category": "summary", "text": "An update for libssh is now available for Red Hat Enterprise Linux 8.\n\nRed Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.", "title": "Topic" }, { "category": "general", "text": "libssh is a library which implements the SSH protocol. It can be used to implement client and server applications.\n\nThe following packages have been upgraded to a later upstream version: libssh (0.9.4). (BZ#1804797)\n\nSecurity Fix(es):\n\n* libssh: denial of service when handling AES-CTR (or DES) ciphers (CVE-2020-1730)\n\n* libssh: unsanitized location in scp could lead to unwanted command execution (CVE-2019-14889)\n\nFor more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.\n\nAdditional Changes:\n\nFor detailed information on changes in this release, see the Red Hat Enterprise Linux 8.3 Release Notes linked from the References section.", "title": "Details" }, { "category": "legal_disclaimer", "text": "This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original.", "title": "Terms of Use" } ], "publisher": { "category": "vendor", "contact_details": "https://access.redhat.com/security/team/contact/", "issuing_authority": "Red Hat Product Security is responsible for vulnerability handling across all Red Hat products and services.", "name": "Red Hat Product Security", "namespace": "https://www.redhat.com" }, "references": [ { "category": "self", "summary": "https://access.redhat.com/errata/RHSA-2020:4545", "url": "https://access.redhat.com/errata/RHSA-2020:4545" }, { "category": "external", "summary": "https://access.redhat.com/security/updates/classification/#moderate", "url": "https://access.redhat.com/security/updates/classification/#moderate" }, { "category": "external", "summary": "https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/8/html/8.3_release_notes/", "url": "https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/8/html/8.3_release_notes/" }, { "category": "external", "summary": "1733914", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1733914" }, { "category": "external", "summary": "1772523", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1772523" }, { "category": "external", "summary": "1801998", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1801998" }, { "category": "external", "summary": "1804797", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1804797" }, { "category": "external", "summary": "1821339", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1821339" }, { "category": "external", "summary": "1849071", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1849071" }, { "category": "self", "summary": "Canonical URL", "url": "https://security.access.redhat.com/data/csaf/v2/advisories/2020/rhsa-2020_4545.json" } ], "title": "Red Hat Security Advisory: libssh security, bug fix, and enhancement update", "tracking": { "current_release_date": "2024-11-22T15:14:45+00:00", "generator": { "date": "2024-11-22T15:14:45+00:00", "engine": { "name": "Red Hat SDEngine", "version": "4.2.1" } }, "id": "RHSA-2020:4545", "initial_release_date": "2020-11-04T01:00:11+00:00", "revision_history": [ { "date": "2020-11-04T01:00:11+00:00", "number": "1", "summary": "Initial version" }, { "date": "2020-11-04T01:00:11+00:00", "number": "2", "summary": "Last updated version" }, { "date": "2024-11-22T15:14:45+00:00", "number": "3", "summary": "Last generated version" } ], "status": "final", "version": "3" } }, "product_tree": { "branches": [ { "branches": [ { "branches": [ { "category": "product_name", "name": "Red Hat Enterprise Linux AppStream (v. 8)", "product": { "name": "Red Hat Enterprise Linux AppStream (v. 8)", "product_id": "AppStream-8.3.0.GA", "product_identification_helper": { "cpe": "cpe:/a:redhat:enterprise_linux:8::appstream" } } }, { "category": "product_name", "name": "Red Hat 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], "cve": "CVE-2019-14889", "cwe": { "id": "CWE-78", "name": "Improper Neutralization of Special Elements used in an OS Command (\u0027OS Command Injection\u0027)" }, "discovery_date": "2019-11-14T00:00:00+00:00", "ids": [ { "system_name": "Red Hat Bugzilla ID", "text": "1772523" } ], "notes": [ { "category": "description", "text": "A flaw was found with the libssh API function ssh_scp_new(). A user able to connect to a server using SCP could execute arbitrary command using a user-provided path, leading to a compromise of the remote target.", "title": "Vulnerability description" }, { "category": "summary", "text": "libssh: unsanitized location in scp could lead to unwanted command execution", "title": "Vulnerability summary" }, { "category": "other", "text": "Red Hat Virtualization only uses libssh for client-side, not server-side where this vulnerability is present.", "title": "Statement" }, { "category": "general", "text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.", "title": "CVSS score applicability" } ], "product_status": { "fixed": [ "AppStream-8.3.0.GA:libssh-0:0.9.4-2.el8.aarch64", "AppStream-8.3.0.GA:libssh-0:0.9.4-2.el8.i686", "AppStream-8.3.0.GA:libssh-0:0.9.4-2.el8.ppc64le", 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in scp could lead to unwanted command execution" }, { "acknowledgments": [ { "names": [ "libssh team" ] }, { "names": [ "Yasheng Yang" ], "organization": "Google", "summary": "Acknowledged by upstream." } ], "cve": "CVE-2020-1730", "cwe": { "id": "CWE-476", "name": "NULL Pointer Dereference" }, "discovery_date": "2020-01-28T00:00:00+00:00", "ids": [ { "system_name": "Red Hat Bugzilla ID", "text": "1801998" } ], "notes": [ { "category": "description", "text": "A flaw was found in the way libssh handled AES-CTR (or DES ciphers if enabled) ciphers. The server or client could crash when the connection hasn\u0027t been fully initialized and the system tries to cleanup the ciphers when closing the connection. The biggest threat from this vulnerability is system availability.", "title": "Vulnerability description" }, { "category": "summary", "text": "libssh: denial of service when handling AES-CTR (or DES) ciphers", "title": "Vulnerability summary" }, { "category": "general", "text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.", "title": "CVSS score applicability" } ], "product_status": { "fixed": [ "AppStream-8.3.0.GA:libssh-0:0.9.4-2.el8.aarch64", "AppStream-8.3.0.GA:libssh-0:0.9.4-2.el8.i686", "AppStream-8.3.0.GA:libssh-0:0.9.4-2.el8.ppc64le", "AppStream-8.3.0.GA:libssh-0:0.9.4-2.el8.s390x", "AppStream-8.3.0.GA:libssh-0:0.9.4-2.el8.src", "AppStream-8.3.0.GA:libssh-0:0.9.4-2.el8.x86_64", "AppStream-8.3.0.GA:libssh-config-0:0.9.4-2.el8.noarch", "AppStream-8.3.0.GA:libssh-debuginfo-0:0.9.4-2.el8.aarch64", 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"BaseOS-8.3.0.GA:libssh-devel-0:0.9.4-2.el8.x86_64" ] }, "references": [ { "category": "self", "summary": "Canonical URL", "url": "https://access.redhat.com/security/cve/CVE-2020-1730" }, { "category": "external", "summary": "RHBZ#1801998", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1801998" }, { "category": "external", "summary": "https://www.cve.org/CVERecord?id=CVE-2020-1730", "url": "https://www.cve.org/CVERecord?id=CVE-2020-1730" }, { "category": "external", "summary": "https://nvd.nist.gov/vuln/detail/CVE-2020-1730", "url": "https://nvd.nist.gov/vuln/detail/CVE-2020-1730" }, { "category": "external", "summary": "https://www.libssh.org/security/advisories/CVE-2020-1730.txt", "url": "https://www.libssh.org/security/advisories/CVE-2020-1730.txt" } ], "release_date": "2020-04-09T09:00:00+00:00", "remediations": [ { "category": "vendor_fix", "date": "2020-11-04T01:00:11+00:00", "details": "For details on how to apply this update, which includes the changes described in this advisory, refer to:\n\nhttps://access.redhat.com/articles/11258\n\nAfter installing these updated packages, all running applications using libssh must be restarted for this update to take effect.", "product_ids": [ "AppStream-8.3.0.GA:libssh-0:0.9.4-2.el8.aarch64", "AppStream-8.3.0.GA:libssh-0:0.9.4-2.el8.i686", "AppStream-8.3.0.GA:libssh-0:0.9.4-2.el8.ppc64le", "AppStream-8.3.0.GA:libssh-0:0.9.4-2.el8.s390x", "AppStream-8.3.0.GA:libssh-0:0.9.4-2.el8.src", "AppStream-8.3.0.GA:libssh-0:0.9.4-2.el8.x86_64", "AppStream-8.3.0.GA:libssh-config-0:0.9.4-2.el8.noarch", "AppStream-8.3.0.GA:libssh-debuginfo-0:0.9.4-2.el8.aarch64", "AppStream-8.3.0.GA:libssh-debuginfo-0:0.9.4-2.el8.i686", "AppStream-8.3.0.GA:libssh-debuginfo-0:0.9.4-2.el8.ppc64le", "AppStream-8.3.0.GA:libssh-debuginfo-0:0.9.4-2.el8.s390x", "AppStream-8.3.0.GA:libssh-debuginfo-0:0.9.4-2.el8.x86_64", "AppStream-8.3.0.GA:libssh-debugsource-0:0.9.4-2.el8.aarch64", "AppStream-8.3.0.GA:libssh-debugsource-0:0.9.4-2.el8.i686", 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If you implement a server using libssh we advise to use a prefork model so each session runs in an own process. If you have implemented your server this way this is not really an issue. The client will kill its own connection.", "product_ids": [ "AppStream-8.3.0.GA:libssh-0:0.9.4-2.el8.aarch64", "AppStream-8.3.0.GA:libssh-0:0.9.4-2.el8.i686", "AppStream-8.3.0.GA:libssh-0:0.9.4-2.el8.ppc64le", "AppStream-8.3.0.GA:libssh-0:0.9.4-2.el8.s390x", "AppStream-8.3.0.GA:libssh-0:0.9.4-2.el8.src", "AppStream-8.3.0.GA:libssh-0:0.9.4-2.el8.x86_64", "AppStream-8.3.0.GA:libssh-config-0:0.9.4-2.el8.noarch", "AppStream-8.3.0.GA:libssh-debuginfo-0:0.9.4-2.el8.aarch64", "AppStream-8.3.0.GA:libssh-debuginfo-0:0.9.4-2.el8.i686", "AppStream-8.3.0.GA:libssh-debuginfo-0:0.9.4-2.el8.ppc64le", "AppStream-8.3.0.GA:libssh-debuginfo-0:0.9.4-2.el8.s390x", "AppStream-8.3.0.GA:libssh-debuginfo-0:0.9.4-2.el8.x86_64", "AppStream-8.3.0.GA:libssh-debugsource-0:0.9.4-2.el8.aarch64", "AppStream-8.3.0.GA:libssh-debugsource-0:0.9.4-2.el8.i686", "AppStream-8.3.0.GA:libssh-debugsource-0:0.9.4-2.el8.ppc64le", "AppStream-8.3.0.GA:libssh-debugsource-0:0.9.4-2.el8.s390x", 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"AppStream-8.3.0.GA:libssh-devel-0:0.9.4-2.el8.aarch64", "AppStream-8.3.0.GA:libssh-devel-0:0.9.4-2.el8.i686", "AppStream-8.3.0.GA:libssh-devel-0:0.9.4-2.el8.ppc64le", "AppStream-8.3.0.GA:libssh-devel-0:0.9.4-2.el8.s390x", "AppStream-8.3.0.GA:libssh-devel-0:0.9.4-2.el8.x86_64", "BaseOS-8.3.0.GA:libssh-0:0.9.4-2.el8.aarch64", "BaseOS-8.3.0.GA:libssh-0:0.9.4-2.el8.i686", "BaseOS-8.3.0.GA:libssh-0:0.9.4-2.el8.ppc64le", "BaseOS-8.3.0.GA:libssh-0:0.9.4-2.el8.s390x", "BaseOS-8.3.0.GA:libssh-0:0.9.4-2.el8.src", "BaseOS-8.3.0.GA:libssh-0:0.9.4-2.el8.x86_64", "BaseOS-8.3.0.GA:libssh-config-0:0.9.4-2.el8.noarch", "BaseOS-8.3.0.GA:libssh-debuginfo-0:0.9.4-2.el8.aarch64", "BaseOS-8.3.0.GA:libssh-debuginfo-0:0.9.4-2.el8.i686", "BaseOS-8.3.0.GA:libssh-debuginfo-0:0.9.4-2.el8.ppc64le", "BaseOS-8.3.0.GA:libssh-debuginfo-0:0.9.4-2.el8.s390x", "BaseOS-8.3.0.GA:libssh-debuginfo-0:0.9.4-2.el8.x86_64", "BaseOS-8.3.0.GA:libssh-debugsource-0:0.9.4-2.el8.aarch64", "BaseOS-8.3.0.GA:libssh-debugsource-0:0.9.4-2.el8.i686", "BaseOS-8.3.0.GA:libssh-debugsource-0:0.9.4-2.el8.ppc64le", "BaseOS-8.3.0.GA:libssh-debugsource-0:0.9.4-2.el8.s390x", "BaseOS-8.3.0.GA:libssh-debugsource-0:0.9.4-2.el8.x86_64", "BaseOS-8.3.0.GA:libssh-devel-0:0.9.4-2.el8.aarch64", "BaseOS-8.3.0.GA:libssh-devel-0:0.9.4-2.el8.i686", "BaseOS-8.3.0.GA:libssh-devel-0:0.9.4-2.el8.ppc64le", "BaseOS-8.3.0.GA:libssh-devel-0:0.9.4-2.el8.s390x", "BaseOS-8.3.0.GA:libssh-devel-0:0.9.4-2.el8.x86_64" ] } ], "threats": [ { "category": "impact", "details": "Moderate" } ], "title": "libssh: denial of service when handling AES-CTR (or DES) ciphers" } ] }
rhsa-2020_5218
Vulnerability from csaf_redhat
Published
2020-11-24 13:11
Modified
2024-11-22 15:14
Summary
Red Hat Security Advisory: Red Hat Virtualization security, bug fix, and enhancement update
Notes
Topic
An update for imgbased, redhat-release-virtualization-host, and redhat-virtualization-host is now available for Red Hat Virtualization 4 for Red Hat Enterprise Linux 8.
Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.
Details
The redhat-virtualization-host packages provide the Red Hat Virtualization Host. These packages include redhat-release-virtualization-host, ovirt-node, and rhev-hypervisor. Red Hat Virtualization Hosts (RHVH) are installed using a special build of Red Hat Enterprise Linux with only the packages required to host virtual machines. RHVH features a Cockpit user interface for monitoring the host's resources and performing administrative tasks.
The redhat-virtualization-host packages provide the Red Hat Virtualization Host. These packages include redhat-release-virtualization-host, ovirt-node, and rhev-hypervisor. Red Hat Virtualization Hosts (RHVH) are installed using a special build of Red Hat Enterprise Linux with only the packages required to host virtual machines. RHVH features a Cockpit user interface for monitoring the host's resources and performing administrative tasks.
The ovirt-node-ng packages provide the Red Hat Virtualization Host. These packages include redhat-release-virtualization-host, ovirt-node, and rhev-hypervisor. Red Hat Virtualization Hosts (RHVH) are installed using a special build of Red Hat Enterprise Linux with only the packages required to host virtual machines. RHVH features a Cockpit user interface for monitoring the host's resources and performing administrative tasks.
The following packages have been upgraded to a later upstream version: imgbased (1.2.13), redhat-release-virtualization-host (4.4.3), redhat-virtualization-host (4.4.3). (BZ#1814517, BZ#1868293, BZ#1886484)
Security Fix(es):
* libssh: denial of service when handling AES-CTR (or DES) ciphers (CVE-2020-1730)
For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.
Bug Fix(es):
* [security] gnutls_set_default_priority() (and thus Cockpit logins) fails when selecting VPP profile during RHVH installation (BZ#1835661)
* Unable to upgrade from rhvh 4.4.1 to 4.4.2 as block storage domains are detected as local storage domains. (BZ#1886647)
* Failed to install RHVH 4.4.3 due to missing Lvm ThinPool (BZ#1886695)
Terms of Use
This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original.
{ "document": { "aggregate_severity": { "namespace": "https://access.redhat.com/security/updates/classification/", "text": "Moderate" }, "category": "csaf_security_advisory", "csaf_version": "2.0", "distribution": { "text": "Copyright \u00a9 Red Hat, Inc. All rights reserved.", "tlp": { "label": "WHITE", "url": "https://www.first.org/tlp/" } }, "lang": "en", "notes": [ { "category": "summary", "text": "An update for imgbased, redhat-release-virtualization-host, and redhat-virtualization-host is now available for Red Hat Virtualization 4 for Red Hat Enterprise Linux 8.\n\nRed Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.", "title": "Topic" }, { "category": "general", "text": "The redhat-virtualization-host packages provide the Red Hat Virtualization Host. These packages include redhat-release-virtualization-host, ovirt-node, and rhev-hypervisor. Red Hat Virtualization Hosts (RHVH) are installed using a special build of Red Hat Enterprise Linux with only the packages required to host virtual machines. RHVH features a Cockpit user interface for monitoring the host\u0027s resources and performing administrative tasks.\n\nThe redhat-virtualization-host packages provide the Red Hat Virtualization Host. These packages include redhat-release-virtualization-host, ovirt-node, and rhev-hypervisor. Red Hat Virtualization Hosts (RHVH) are installed using a special build of Red Hat Enterprise Linux with only the packages required to host virtual machines. RHVH features a Cockpit user interface for monitoring the host\u0027s resources and performing administrative tasks. \n\nThe ovirt-node-ng packages provide the Red Hat Virtualization Host. These packages include redhat-release-virtualization-host, ovirt-node, and rhev-hypervisor. Red Hat Virtualization Hosts (RHVH) are installed using a special build of Red Hat Enterprise Linux with only the packages required to host virtual machines. RHVH features a Cockpit user interface for monitoring the host\u0027s resources and performing administrative tasks.\n\nThe following packages have been upgraded to a later upstream version: imgbased (1.2.13), redhat-release-virtualization-host (4.4.3), redhat-virtualization-host (4.4.3). (BZ#1814517, BZ#1868293, BZ#1886484)\n\nSecurity Fix(es):\n\n* libssh: denial of service when handling AES-CTR (or DES) ciphers (CVE-2020-1730)\n\nFor more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.\n\nBug Fix(es):\n\n* [security] gnutls_set_default_priority() (and thus Cockpit logins) fails when selecting VPP profile during RHVH installation (BZ#1835661)\n\n* Unable to upgrade from rhvh 4.4.1 to 4.4.2 as block storage domains are detected as local storage domains. (BZ#1886647)\n\n* Failed to install RHVH 4.4.3 due to missing Lvm ThinPool (BZ#1886695)", "title": "Details" }, { "category": "legal_disclaimer", "text": "This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original.", "title": "Terms of Use" } ], "publisher": { "category": "vendor", "contact_details": "https://access.redhat.com/security/team/contact/", "issuing_authority": "Red Hat Product Security is responsible for vulnerability handling across all Red Hat products and services.", "name": "Red Hat Product Security", "namespace": "https://www.redhat.com" }, "references": [ { "category": "self", "summary": "https://access.redhat.com/errata/RHSA-2020:5218", "url": "https://access.redhat.com/errata/RHSA-2020:5218" }, { "category": "external", "summary": "https://access.redhat.com/security/updates/classification/#moderate", "url": "https://access.redhat.com/security/updates/classification/#moderate" }, { "category": "external", "summary": "1801998", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1801998" }, { "category": "external", "summary": "1833254", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1833254" }, { "category": "external", "summary": "1868293", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1868293" }, { "category": "external", "summary": "1886484", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1886484" }, { "category": "external", "summary": "1886647", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1886647" }, { "category": "external", "summary": "1886695", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1886695" }, { "category": "self", "summary": "Canonical URL", "url": "https://security.access.redhat.com/data/csaf/v2/advisories/2020/rhsa-2020_5218.json" } ], "title": "Red Hat Security Advisory: Red Hat Virtualization security, bug fix, and enhancement update", "tracking": { "current_release_date": "2024-11-22T15:14:53+00:00", "generator": { "date": "2024-11-22T15:14:53+00:00", "engine": { "name": "Red Hat SDEngine", "version": "4.2.1" } }, "id": "RHSA-2020:5218", "initial_release_date": "2020-11-24T13:11:32+00:00", "revision_history": [ { "date": "2020-11-24T13:11:32+00:00", "number": "1", "summary": "Initial version" }, { "date": "2020-11-24T13:11:32+00:00", "number": "2", "summary": "Last updated version" }, { "date": "2024-11-22T15:14:53+00:00", "number": "3", "summary": "Last generated version" } ], "status": "final", "version": "3" } }, "product_tree": { "branches": [ { "branches": [ { "branches": [ { "category": "product_name", "name": "RHEL 8-based RHEV-H for RHEV 4 (build requirements)", "product": { "name": "RHEL 8-based RHEV-H for RHEV 4 (build requirements)", "product_id": "8Base-RHV-HypervisorBuild-4", "product_identification_helper": { "cpe": "cpe:/o:redhat:rhev_hypervisor:4.4::el8" } } }, { "category": "product_name", "name": "Red Hat Virtualization 4 Hypervisor for RHEL 8", "product": { "name": "Red Hat Virtualization 4 Hypervisor for RHEL 8", "product_id": "8Base-RHV-Hypervisor-4", "product_identification_helper": { "cpe": "cpe:/o:redhat:rhev_hypervisor:4.4::el8" } } } ], "category": "product_family", "name": "Red Hat Virtualization" }, { "branches": [ { "category": "product_version", "name": "imgbased-0:1.2.13-0.1.el8ev.noarch", "product": { "name": "imgbased-0:1.2.13-0.1.el8ev.noarch", "product_id": "imgbased-0:1.2.13-0.1.el8ev.noarch", "product_identification_helper": { "purl": "pkg:rpm/redhat/imgbased@1.2.13-0.1.el8ev?arch=noarch" } } }, { "category": "product_version", "name": "python3-imgbased-0:1.2.13-0.1.el8ev.noarch", "product": { "name": "python3-imgbased-0:1.2.13-0.1.el8ev.noarch", "product_id": "python3-imgbased-0:1.2.13-0.1.el8ev.noarch", "product_identification_helper": { "purl": "pkg:rpm/redhat/python3-imgbased@1.2.13-0.1.el8ev?arch=noarch" } } }, { "category": "product_version", "name": "redhat-virtualization-host-image-update-placeholder-0:4.4.3-1.el8ev.noarch", "product": { "name": "redhat-virtualization-host-image-update-placeholder-0:4.4.3-1.el8ev.noarch", "product_id": "redhat-virtualization-host-image-update-placeholder-0:4.4.3-1.el8ev.noarch", "product_identification_helper": { "purl": "pkg:rpm/redhat/redhat-virtualization-host-image-update-placeholder@4.4.3-1.el8ev?arch=noarch" } } }, { "category": "product_version", "name": "redhat-virtualization-host-image-update-0:4.4.3-20201116.0.el8_3.noarch", "product": { "name": "redhat-virtualization-host-image-update-0:4.4.3-20201116.0.el8_3.noarch", "product_id": "redhat-virtualization-host-image-update-0:4.4.3-20201116.0.el8_3.noarch", "product_identification_helper": { "purl": "pkg:rpm/redhat/redhat-virtualization-host-image-update@4.4.3-20201116.0.el8_3?arch=noarch" } } } ], "category": "architecture", "name": "noarch" }, { "branches": [ { "category": "product_version", "name": "imgbased-0:1.2.13-0.1.el8ev.src", "product": { "name": "imgbased-0:1.2.13-0.1.el8ev.src", "product_id": "imgbased-0:1.2.13-0.1.el8ev.src", "product_identification_helper": { "purl": "pkg:rpm/redhat/imgbased@1.2.13-0.1.el8ev?arch=src" } } }, { "category": "product_version", "name": "redhat-release-virtualization-host-0:4.4.3-1.el8ev.src", "product": { "name": "redhat-release-virtualization-host-0:4.4.3-1.el8ev.src", "product_id": "redhat-release-virtualization-host-0:4.4.3-1.el8ev.src", "product_identification_helper": { "purl": "pkg:rpm/redhat/redhat-release-virtualization-host@4.4.3-1.el8ev?arch=src" } } }, { "category": "product_version", "name": "redhat-virtualization-host-0:4.4.3-20201116.0.el8_3.src", "product": { "name": "redhat-virtualization-host-0:4.4.3-20201116.0.el8_3.src", "product_id": "redhat-virtualization-host-0:4.4.3-20201116.0.el8_3.src", "product_identification_helper": { "purl": "pkg:rpm/redhat/redhat-virtualization-host@4.4.3-20201116.0.el8_3?arch=src" } } } ], "category": "architecture", "name": "src" }, { "branches": [ { "category": "product_version", "name": "redhat-release-virtualization-host-0:4.4.3-1.el8ev.x86_64", "product": { "name": "redhat-release-virtualization-host-0:4.4.3-1.el8ev.x86_64", "product_id": "redhat-release-virtualization-host-0:4.4.3-1.el8ev.x86_64", "product_identification_helper": { "purl": "pkg:rpm/redhat/redhat-release-virtualization-host@4.4.3-1.el8ev?arch=x86_64" } } } ], "category": "architecture", "name": "x86_64" } ], "category": "vendor", "name": "Red Hat" } ], "relationships": [ { "category": "default_component_of", "full_product_name": { "name": "redhat-virtualization-host-0:4.4.3-20201116.0.el8_3.src as a component of Red Hat Virtualization 4 Hypervisor for RHEL 8", "product_id": "8Base-RHV-Hypervisor-4:redhat-virtualization-host-0:4.4.3-20201116.0.el8_3.src" }, "product_reference": "redhat-virtualization-host-0:4.4.3-20201116.0.el8_3.src", "relates_to_product_reference": "8Base-RHV-Hypervisor-4" }, { "category": "default_component_of", "full_product_name": { "name": "redhat-virtualization-host-image-update-0:4.4.3-20201116.0.el8_3.noarch as a component of Red Hat Virtualization 4 Hypervisor for RHEL 8", "product_id": "8Base-RHV-Hypervisor-4:redhat-virtualization-host-image-update-0:4.4.3-20201116.0.el8_3.noarch" }, "product_reference": "redhat-virtualization-host-image-update-0:4.4.3-20201116.0.el8_3.noarch", "relates_to_product_reference": "8Base-RHV-Hypervisor-4" }, { "category": "default_component_of", "full_product_name": { "name": "imgbased-0:1.2.13-0.1.el8ev.noarch as a component of RHEL 8-based RHEV-H for RHEV 4 (build requirements)", "product_id": "8Base-RHV-HypervisorBuild-4:imgbased-0:1.2.13-0.1.el8ev.noarch" }, "product_reference": "imgbased-0:1.2.13-0.1.el8ev.noarch", "relates_to_product_reference": "8Base-RHV-HypervisorBuild-4" }, { "category": "default_component_of", "full_product_name": { "name": "imgbased-0:1.2.13-0.1.el8ev.src as a component of RHEL 8-based RHEV-H for RHEV 4 (build requirements)", "product_id": "8Base-RHV-HypervisorBuild-4:imgbased-0:1.2.13-0.1.el8ev.src" }, "product_reference": "imgbased-0:1.2.13-0.1.el8ev.src", "relates_to_product_reference": "8Base-RHV-HypervisorBuild-4" }, { "category": "default_component_of", "full_product_name": { "name": "python3-imgbased-0:1.2.13-0.1.el8ev.noarch as a component of RHEL 8-based RHEV-H for RHEV 4 (build requirements)", "product_id": "8Base-RHV-HypervisorBuild-4:python3-imgbased-0:1.2.13-0.1.el8ev.noarch" }, "product_reference": "python3-imgbased-0:1.2.13-0.1.el8ev.noarch", "relates_to_product_reference": "8Base-RHV-HypervisorBuild-4" }, { "category": "default_component_of", "full_product_name": { "name": "redhat-release-virtualization-host-0:4.4.3-1.el8ev.src as a component of RHEL 8-based RHEV-H for RHEV 4 (build requirements)", "product_id": "8Base-RHV-HypervisorBuild-4:redhat-release-virtualization-host-0:4.4.3-1.el8ev.src" }, "product_reference": "redhat-release-virtualization-host-0:4.4.3-1.el8ev.src", "relates_to_product_reference": "8Base-RHV-HypervisorBuild-4" }, { "category": "default_component_of", "full_product_name": { "name": "redhat-release-virtualization-host-0:4.4.3-1.el8ev.x86_64 as a component of RHEL 8-based RHEV-H for RHEV 4 (build requirements)", "product_id": "8Base-RHV-HypervisorBuild-4:redhat-release-virtualization-host-0:4.4.3-1.el8ev.x86_64" }, "product_reference": "redhat-release-virtualization-host-0:4.4.3-1.el8ev.x86_64", "relates_to_product_reference": "8Base-RHV-HypervisorBuild-4" }, { "category": "default_component_of", "full_product_name": { "name": "redhat-virtualization-host-image-update-placeholder-0:4.4.3-1.el8ev.noarch as a component of RHEL 8-based RHEV-H for RHEV 4 (build requirements)", "product_id": "8Base-RHV-HypervisorBuild-4:redhat-virtualization-host-image-update-placeholder-0:4.4.3-1.el8ev.noarch" }, "product_reference": "redhat-virtualization-host-image-update-placeholder-0:4.4.3-1.el8ev.noarch", "relates_to_product_reference": "8Base-RHV-HypervisorBuild-4" } ] }, "vulnerabilities": [ { "acknowledgments": [ { "names": [ "libssh team" ] }, { "names": [ "Yasheng Yang" ], "organization": "Google", "summary": "Acknowledged by upstream." } ], "cve": "CVE-2020-1730", "cwe": { "id": "CWE-476", "name": "NULL Pointer Dereference" }, "discovery_date": "2020-01-28T00:00:00+00:00", "flags": [ { "label": "vulnerable_code_not_present", "product_ids": [ "8Base-RHV-HypervisorBuild-4:imgbased-0:1.2.13-0.1.el8ev.noarch", "8Base-RHV-HypervisorBuild-4:imgbased-0:1.2.13-0.1.el8ev.src", "8Base-RHV-HypervisorBuild-4:python3-imgbased-0:1.2.13-0.1.el8ev.noarch", "8Base-RHV-HypervisorBuild-4:redhat-release-virtualization-host-0:4.4.3-1.el8ev.src", "8Base-RHV-HypervisorBuild-4:redhat-release-virtualization-host-0:4.4.3-1.el8ev.x86_64", "8Base-RHV-HypervisorBuild-4:redhat-virtualization-host-image-update-placeholder-0:4.4.3-1.el8ev.noarch" ] } ], "ids": [ { "system_name": "Red Hat Bugzilla ID", "text": "1801998" } ], "notes": [ { "category": "description", "text": "A flaw was found in the way libssh handled AES-CTR (or DES ciphers if enabled) ciphers. The server or client could crash when the connection hasn\u0027t been fully initialized and the system tries to cleanup the ciphers when closing the connection. The biggest threat from this vulnerability is system availability.", "title": "Vulnerability description" }, { "category": "summary", "text": "libssh: denial of service when handling AES-CTR (or DES) ciphers", "title": "Vulnerability summary" }, { "category": "general", "text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.", "title": "CVSS score applicability" } ], "product_status": { "fixed": [ "8Base-RHV-Hypervisor-4:redhat-virtualization-host-0:4.4.3-20201116.0.el8_3.src", "8Base-RHV-Hypervisor-4:redhat-virtualization-host-image-update-0:4.4.3-20201116.0.el8_3.noarch" ], "known_not_affected": [ "8Base-RHV-HypervisorBuild-4:imgbased-0:1.2.13-0.1.el8ev.noarch", "8Base-RHV-HypervisorBuild-4:imgbased-0:1.2.13-0.1.el8ev.src", "8Base-RHV-HypervisorBuild-4:python3-imgbased-0:1.2.13-0.1.el8ev.noarch", "8Base-RHV-HypervisorBuild-4:redhat-release-virtualization-host-0:4.4.3-1.el8ev.src", "8Base-RHV-HypervisorBuild-4:redhat-release-virtualization-host-0:4.4.3-1.el8ev.x86_64", "8Base-RHV-HypervisorBuild-4:redhat-virtualization-host-image-update-placeholder-0:4.4.3-1.el8ev.noarch" ] }, "references": [ { "category": "self", "summary": "Canonical URL", "url": "https://access.redhat.com/security/cve/CVE-2020-1730" }, { "category": "external", "summary": "RHBZ#1801998", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1801998" }, { "category": "external", "summary": "https://www.cve.org/CVERecord?id=CVE-2020-1730", "url": "https://www.cve.org/CVERecord?id=CVE-2020-1730" }, { "category": "external", "summary": "https://nvd.nist.gov/vuln/detail/CVE-2020-1730", "url": "https://nvd.nist.gov/vuln/detail/CVE-2020-1730" }, { "category": "external", "summary": "https://www.libssh.org/security/advisories/CVE-2020-1730.txt", "url": "https://www.libssh.org/security/advisories/CVE-2020-1730.txt" } ], "release_date": "2020-04-09T09:00:00+00:00", "remediations": [ { "category": "vendor_fix", "date": "2020-11-24T13:11:32+00:00", "details": "For details on how to apply this update, which includes the changes described in this advisory, refer to:\n\nhttps://access.redhat.com/articles/2974891", "product_ids": [ "8Base-RHV-Hypervisor-4:redhat-virtualization-host-0:4.4.3-20201116.0.el8_3.src", "8Base-RHV-Hypervisor-4:redhat-virtualization-host-image-update-0:4.4.3-20201116.0.el8_3.noarch" ], "restart_required": { "category": "none" }, "url": "https://access.redhat.com/errata/RHSA-2020:5218" }, { "category": "workaround", "details": "Disable AES-CTR ciphers (and DES in libssh 0.8). If you implement a server using libssh we advise to use a prefork model so each session runs in an own process. If you have implemented your server this way this is not really an issue. The client will kill its own connection.", "product_ids": [ "8Base-RHV-Hypervisor-4:redhat-virtualization-host-0:4.4.3-20201116.0.el8_3.src", "8Base-RHV-Hypervisor-4:redhat-virtualization-host-image-update-0:4.4.3-20201116.0.el8_3.noarch", "8Base-RHV-HypervisorBuild-4:imgbased-0:1.2.13-0.1.el8ev.noarch", "8Base-RHV-HypervisorBuild-4:imgbased-0:1.2.13-0.1.el8ev.src", "8Base-RHV-HypervisorBuild-4:python3-imgbased-0:1.2.13-0.1.el8ev.noarch", "8Base-RHV-HypervisorBuild-4:redhat-release-virtualization-host-0:4.4.3-1.el8ev.src", "8Base-RHV-HypervisorBuild-4:redhat-release-virtualization-host-0:4.4.3-1.el8ev.x86_64", "8Base-RHV-HypervisorBuild-4:redhat-virtualization-host-image-update-placeholder-0:4.4.3-1.el8ev.noarch" ] } ], "scores": [ { "cvss_v3": { "attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "LOW", "baseScore": 5.3, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L", "version": "3.1" }, "products": [ "8Base-RHV-Hypervisor-4:redhat-virtualization-host-0:4.4.3-20201116.0.el8_3.src", "8Base-RHV-Hypervisor-4:redhat-virtualization-host-image-update-0:4.4.3-20201116.0.el8_3.noarch" ] } ], "threats": [ { "category": "impact", "details": "Moderate" } ], "title": "libssh: denial of service when handling AES-CTR (or DES) ciphers" } ] }
gsd-2020-1730
Vulnerability from gsd
Modified
2023-12-13 01:21
Details
A flaw was found in libssh versions before 0.8.9 and before 0.9.4 in the way it handled AES-CTR (or DES ciphers if enabled) ciphers. The server or client could crash when the connection hasn't been fully initialized and the system tries to cleanup the ciphers when closing the connection. The biggest threat from this vulnerability is system availability.
Aliases
Aliases
{ "GSD": { "alias": "CVE-2020-1730", "description": "A flaw was found in libssh versions before 0.8.9 and before 0.9.4 in the way it handled AES-CTR (or DES ciphers if enabled) ciphers. The server or client could crash when the connection hasn\u0027t been fully initialized and the system tries to cleanup the ciphers when closing the connection. The biggest threat from this vulnerability is system availability.", "id": "GSD-2020-1730", "references": [ "https://www.suse.com/security/cve/CVE-2020-1730.html", "https://access.redhat.com/errata/RHSA-2020:5218", "https://access.redhat.com/errata/RHSA-2020:4545", "https://ubuntu.com/security/CVE-2020-1730", "https://advisories.mageia.org/CVE-2020-1730.html", "https://security.archlinux.org/CVE-2020-1730", "https://linux.oracle.com/cve/CVE-2020-1730.html" ] }, "gsd": { "metadata": { "exploitCode": "unknown", "remediation": "unknown", "reportConfidence": "confirmed", "type": "vulnerability" }, "osvSchema": { "aliases": [ "CVE-2020-1730" ], "details": "A flaw was found in libssh versions before 0.8.9 and before 0.9.4 in the way it handled AES-CTR (or DES ciphers if enabled) ciphers. The server or client could crash when the connection hasn\u0027t been fully initialized and the system tries to cleanup the ciphers when closing the connection. The biggest threat from this vulnerability is system availability.", "id": "GSD-2020-1730", "modified": "2023-12-13T01:21:58.712607Z", "schema_version": "1.4.0" } }, "namespaces": { "cve.org": { "CVE_data_meta": { "ASSIGNER": "secalert@redhat.com", "ID": "CVE-2020-1730", "STATE": "PUBLIC" }, "affects": { "vendor": { "vendor_data": [ { "product": { "product_data": [ { "product_name": "libssh", "version": { "version_data": [ { "version_value": "libssh versions before 0.8.9" }, { "version_value": "libssh versions before 0.9.4" } ] } } ] }, "vendor_name": "Red Hat" } ] } }, "data_format": "MITRE", "data_type": "CVE", "data_version": "4.0", "description": { "description_data": [ { "lang": "eng", "value": "A flaw was found in libssh versions before 0.8.9 and before 0.9.4 in the way it handled AES-CTR (or DES ciphers if enabled) ciphers. The server or client could crash when the connection hasn\u0027t been fully initialized and the system tries to cleanup the ciphers when closing the connection. The biggest threat from this vulnerability is system availability." } ] }, "impact": { "cvss": [ [ { "vectorString": "5.3/CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L", "version": "3.0" } ] ] }, "problemtype": { "problemtype_data": [ { "description": [ { "lang": "eng", "value": "CWE-476" } ] } ] }, "references": { "reference_data": [ { "name": "FEDORA-2020-5a77f0d68f", "refsource": "FEDORA", "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/VLSWHBQ3EPKGTGLQNH554Z746BJ3C554/" }, { "name": "USN-4327-1", "refsource": "UBUNTU", "url": "https://usn.ubuntu.com/4327-1/" }, { "name": "FEDORA-2020-6cad41abb0", "refsource": "FEDORA", "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/2A7BIFKUYIYKTY7FX4BEWVC2OHS5DPOU/" }, { "name": "https://www.oracle.com/security-alerts/cpuoct2020.html", "refsource": "MISC", "url": "https://www.oracle.com/security-alerts/cpuoct2020.html" }, { "name": "https://www.libssh.org/security/advisories/CVE-2020-1730.txt", "refsource": "MISC", "url": "https://www.libssh.org/security/advisories/CVE-2020-1730.txt" }, { "name": "https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-1730", "refsource": "CONFIRM", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-1730" }, { "name": "https://security.netapp.com/advisory/ntap-20200424-0001/", "refsource": "CONFIRM", "url": "https://security.netapp.com/advisory/ntap-20200424-0001/" } ] } }, "nvd.nist.gov": { "configurations": { "CVE_data_version": "4.0", "nodes": [ { "children": [], "cpe_match": [ { "cpe23Uri": "cpe:2.3:a:libssh:libssh:*:*:*:*:*:*:*:*", "cpe_name": [], "versionEndExcluding": "0.9.4", "versionStartIncluding": "0.9.0", "vulnerable": true }, { "cpe23Uri": "cpe:2.3:a:libssh:libssh:*:*:*:*:*:*:*:*", "cpe_name": [], "versionEndExcluding": "0.8.9", "versionStartIncluding": "0.8.0", "vulnerable": true } ], "operator": "OR" }, { "children": [], "cpe_match": [ { "cpe23Uri": "cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*", "cpe_name": [], "vulnerable": true }, { "cpe23Uri": "cpe:2.3:a:netapp:cloud_backup:-:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true }, { "cpe23Uri": "cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true }, { "cpe23Uri": "cpe:2.3:o:canonical:ubuntu_linux:19.10:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true }, { "cpe23Uri": "cpe:2.3:o:fedoraproject:fedora:31:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true }, { "cpe23Uri": "cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true } ], "operator": "OR" }, { "children": [], "cpe_match": [ { "cpe23Uri": "cpe:2.3:a:oracle:mysql_workbench:*:*:*:*:*:*:*:*", "cpe_name": [], "versionEndIncluding": "8.0.21", "vulnerable": true } ], "operator": "OR" } ] }, "cve": { "CVE_data_meta": { "ASSIGNER": "secalert@redhat.com", "ID": "CVE-2020-1730" }, "data_format": "MITRE", "data_type": "CVE", "data_version": "4.0", "description": { "description_data": [ { "lang": "en", "value": "A flaw was found in libssh versions before 0.8.9 and before 0.9.4 in the way it handled AES-CTR (or DES ciphers if enabled) ciphers. The server or client could crash when the connection hasn\u0027t been fully initialized and the system tries to cleanup the ciphers when closing the connection. The biggest threat from this vulnerability is system availability." } ] }, "problemtype": { "problemtype_data": [ { "description": [ { "lang": "en", "value": "CWE-476" } ] } ] }, "references": { "reference_data": [ { "name": "https://www.libssh.org/security/advisories/CVE-2020-1730.txt", "refsource": "MISC", "tags": [ "Vendor Advisory" ], "url": "https://www.libssh.org/security/advisories/CVE-2020-1730.txt" }, { "name": "https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-1730", "refsource": "CONFIRM", "tags": [ "Issue Tracking", "Third Party Advisory" ], "url": "https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-1730" }, { "name": "FEDORA-2020-5a77f0d68f", "refsource": "FEDORA", "tags": [ "Mailing List", "Third Party Advisory" ], "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/VLSWHBQ3EPKGTGLQNH554Z746BJ3C554/" }, { "name": "USN-4327-1", "refsource": "UBUNTU", "tags": [ "Third Party Advisory" ], "url": "https://usn.ubuntu.com/4327-1/" }, { "name": "https://security.netapp.com/advisory/ntap-20200424-0001/", "refsource": "CONFIRM", "tags": [ "Third Party Advisory" ], "url": "https://security.netapp.com/advisory/ntap-20200424-0001/" }, { "name": "FEDORA-2020-6cad41abb0", "refsource": "FEDORA", "tags": [ "Mailing List", "Third Party Advisory" ], "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/2A7BIFKUYIYKTY7FX4BEWVC2OHS5DPOU/" }, { "name": "https://www.oracle.com/security-alerts/cpuoct2020.html", "refsource": "MISC", "tags": [ "Patch", "Third Party Advisory" ], "url": "https://www.oracle.com/security-alerts/cpuoct2020.html" } ] } }, "impact": { "baseMetricV2": { "acInsufInfo": false, "cvssV2": { "accessComplexity": "LOW", "accessVector": "NETWORK", "authentication": "NONE", "availabilityImpact": "PARTIAL", "baseScore": 5.0, "confidentialityImpact": "NONE", "integrityImpact": "NONE", "vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:P", "version": "2.0" }, "exploitabilityScore": 10.0, "impactScore": 2.9, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "severity": "MEDIUM", "userInteractionRequired": false }, "baseMetricV3": { "cvssV3": { "attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "LOW", "baseScore": 5.3, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L", "version": "3.1" }, "exploitabilityScore": 3.9, "impactScore": 1.4 } }, "lastModifiedDate": "2022-11-08T20:09Z", "publishedDate": "2020-04-13T19:15Z" } } }
ghsa-6rh3-m266-5m77
Vulnerability from github
Published
2022-05-24 17:14
Modified
2022-10-07 18:15
Severity ?
Details
A flaw was found in libssh versions before 0.8.9 and before 0.9.4 in the way it handled AES-CTR (or DES ciphers if enabled) ciphers. The server or client could crash when the connection hasn't been fully initialized and the system tries to cleanup the ciphers when closing the connection. The biggest threat from this vulnerability is system availability.
{ "affected": [], "aliases": [ "CVE-2020-1730" ], "database_specific": { "cwe_ids": [ "CWE-476" ], "github_reviewed": false, "github_reviewed_at": null, "nvd_published_at": "2020-04-13T19:15:00Z", "severity": "MODERATE" }, "details": "A flaw was found in libssh versions before 0.8.9 and before 0.9.4 in the way it handled AES-CTR (or DES ciphers if enabled) ciphers. The server or client could crash when the connection hasn\u0027t been fully initialized and the system tries to cleanup the ciphers when closing the connection. The biggest threat from this vulnerability is system availability.", "id": "GHSA-6rh3-m266-5m77", "modified": "2022-10-07T18:15:55Z", "published": "2022-05-24T17:14:04Z", "references": [ { "type": "ADVISORY", "url": "https://nvd.nist.gov/vuln/detail/CVE-2020-1730" }, { "type": "WEB", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-1730" }, { "type": "WEB", "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/2A7BIFKUYIYKTY7FX4BEWVC2OHS5DPOU" }, { "type": "WEB", "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/VLSWHBQ3EPKGTGLQNH554Z746BJ3C554" }, { "type": "WEB", "url": "https://security.netapp.com/advisory/ntap-20200424-0001" }, { "type": "WEB", "url": "https://usn.ubuntu.com/4327-1" }, { "type": "WEB", "url": "https://www.libssh.org/security/advisories/CVE-2020-1730.txt" }, { "type": "WEB", "url": "https://www.oracle.com/security-alerts/cpuoct2020.html" } ], "schema_version": "1.4.0", "severity": [ { "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L", "type": "CVSS_V3" } ] }
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Sightings
Author | Source | Type | Date |
---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.