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cve-2021-3782
Vulnerability from cvelistv5
Published
2022-09-23 15:26
Modified
2024-08-03 17:09
Severity ?
EPSS score ?
Summary
An internal reference count is held on the buffer pool, incremented every time a new buffer is created from the pool. The reference count is maintained as an int; on LP64 systems this can cause the reference count to overflow if the client creates a large number of wl_shm buffer objects, or if it can coerce the server to create a large number of external references to the buffer storage. With the reference count overflowing, a use-after-free can be constructed on the wl_shm_pool tracking structure, where values may be incremented or decremented; it may also be possible to construct a limited oracle to leak 4 bytes of server-side memory to the attacking client at a time.
References
▼ | URL | Tags | |
---|---|---|---|
secalert@redhat.com | https://gitlab.freedesktop.org/wayland/wayland/-/issues/224 | Exploit, Issue Tracking, Patch, Third Party Advisory |
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ghsa-pvw2-9h4r-c5cr
Vulnerability from github
Published
2022-09-25 00:00
Modified
2022-09-27 00:00
Severity ?
Details
An internal reference count is held on the buffer pool, incremented every time a new buffer is created from the pool. The reference count is maintained as an int; on LP64 systems this can cause the reference count to overflow if the client creates a large number of wl_shm buffer objects, or if it can coerce the server to create a large number of external references to the buffer storage. With the reference count overflowing, a use-after-free can be constructed on the wl_shm_pool tracking structure, where values may be incremented or decremented; it may also be possible to construct a limited oracle to leak 4 bytes of server-side memory to the attacking client at a time.
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rhsa-2023_2786
Vulnerability from csaf_redhat
Published
2023-05-16 08:53
Modified
2024-11-06 02:56
Summary
Red Hat Security Advisory: wayland security, bug fix, and enhancement update
Notes
Topic
An update for wayland 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
Wayland is a protocol for a compositor to talk to its clients, as well as a C library implementation of that protocol. The compositor can be a standalone display server running on Linux kernel modesetting and evdev input devices, an X application, or a wayland client itself. The clients can be traditional applications, X servers (rootless or fullscreen) or other display servers.
The following packages have been upgraded to a later upstream version: wayland (1.21.0). (BZ#2137625)
Security Fix(es):
* wayland: libwayland-server wl_shm reference-count overflow (CVE-2021-3782)
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 8.8 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.
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The compositor can be a standalone display server running on Linux kernel modesetting and evdev input devices, an X application, or a wayland client itself. The clients can be traditional applications, X servers (rootless or fullscreen) or other display servers.\n\nThe following packages have been upgraded to a later upstream version: wayland (1.21.0). 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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-2023:2786", "url": "https://access.redhat.com/errata/RHSA-2023:2786" }, { "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/8.8_release_notes/index", "url": "https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/8/html/8.8_release_notes/index" }, { "category": "external", "summary": "2002627", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2002627" }, { "category": "external", "summary": "2137625", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2137625" }, { "category": "self", "summary": "Canonical URL", "url": "https://security.access.redhat.com/data/csaf/v2/advisories/2023/rhsa-2023_2786.json" } ], "title": "Red Hat Security Advisory: wayland security, bug fix, and enhancement update", "tracking": { "current_release_date": "2024-11-06T02:56:18+00:00", "generator": { "date": "2024-11-06T02:56:18+00:00", "engine": { "name": "Red Hat SDEngine", "version": "4.1.1" } }, "id": "RHSA-2023:2786", "initial_release_date": "2023-05-16T08:53:12+00:00", "revision_history": [ { "date": "2023-05-16T08:53:12+00:00", "number": "1", "summary": "Initial version" }, { "date": "2023-05-16T08:53:12+00:00", "number": "2", "summary": 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"name": "libwayland-cursor-debuginfo-0:1.21.0-1.el8.aarch64", "product_id": "libwayland-cursor-debuginfo-0:1.21.0-1.el8.aarch64", "product_identification_helper": { "purl": "pkg:rpm/redhat/libwayland-cursor-debuginfo@1.21.0-1.el8?arch=aarch64" } } }, { "category": "product_version", "name": "libwayland-egl-debuginfo-0:1.21.0-1.el8.aarch64", "product": { "name": "libwayland-egl-debuginfo-0:1.21.0-1.el8.aarch64", "product_id": "libwayland-egl-debuginfo-0:1.21.0-1.el8.aarch64", "product_identification_helper": { "purl": "pkg:rpm/redhat/libwayland-egl-debuginfo@1.21.0-1.el8?arch=aarch64" } } }, { "category": "product_version", "name": "libwayland-server-debuginfo-0:1.21.0-1.el8.aarch64", "product": { "name": "libwayland-server-debuginfo-0:1.21.0-1.el8.aarch64", "product_id": "libwayland-server-debuginfo-0:1.21.0-1.el8.aarch64", "product_identification_helper": { "purl": "pkg:rpm/redhat/libwayland-server-debuginfo@1.21.0-1.el8?arch=aarch64" } } }, { "category": "product_version", "name": 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"wayland-devel-debuginfo-0:1.21.0-1.el8.s390x as a component of Red Hat Enterprise Linux AppStream (v. 8)", "product_id": "AppStream-8.8.0.GA:wayland-devel-debuginfo-0:1.21.0-1.el8.s390x" }, "product_reference": "wayland-devel-debuginfo-0:1.21.0-1.el8.s390x", "relates_to_product_reference": "AppStream-8.8.0.GA" }, { "category": "default_component_of", "full_product_name": { "name": "wayland-devel-debuginfo-0:1.21.0-1.el8.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 8)", "product_id": "AppStream-8.8.0.GA:wayland-devel-debuginfo-0:1.21.0-1.el8.x86_64" }, "product_reference": "wayland-devel-debuginfo-0:1.21.0-1.el8.x86_64", "relates_to_product_reference": "AppStream-8.8.0.GA" } ] }, "vulnerabilities": [ { "cve": "CVE-2021-3782", "cwe": { "id": "CWE-416", "name": "Use After Free" }, "discovery_date": "2021-09-09T00:00:00+00:00", "ids": [ { "system_name": "Red Hat Bugzilla ID", "text": "2002627" } ], "notes": [ { "category": "description", "text": "An internal reference count is held on the buffer pool, incremented every time a new buffer is created from the pool. The reference count is maintained as an int; on LP64 systems this can cause the reference count to overflow if the client creates a large number of wl_shm buffer objects, or if it can coerce the server to create a large number of external references to the buffer storage. With the reference count overflowing, a use-after-free can be constructed on the wl_shm_pool tracking structure, where values may be incremented or decremented; it may also be possible to construct a limited oracle to leak 4 bytes of server-side memory to the attacking client at a time.", "title": "Vulnerability description" }, { "category": "summary", "text": "wayland: libwayland-server wl_shm reference-count overflow", "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-8.8.0.GA:libwayland-client-0:1.21.0-1.el8.aarch64", "AppStream-8.8.0.GA:libwayland-client-0:1.21.0-1.el8.i686", "AppStream-8.8.0.GA:libwayland-client-0:1.21.0-1.el8.ppc64le", 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"https://access.redhat.com/security/cve/CVE-2021-3782" }, { "category": "external", "summary": "RHBZ#2002627", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2002627" }, { "category": "external", "summary": "https://www.cve.org/CVERecord?id=CVE-2021-3782", "url": "https://www.cve.org/CVERecord?id=CVE-2021-3782" }, { "category": "external", "summary": "https://nvd.nist.gov/vuln/detail/CVE-2021-3782", "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-3782" } ], "release_date": "2022-07-30T16:05:00+00:00", "remediations": [ { "category": "vendor_fix", "date": "2023-05-16T08:53:12+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", "product_ids": [ "AppStream-8.8.0.GA:libwayland-client-0:1.21.0-1.el8.aarch64", "AppStream-8.8.0.GA:libwayland-client-0:1.21.0-1.el8.i686", "AppStream-8.8.0.GA:libwayland-client-0:1.21.0-1.el8.ppc64le", 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[ { "cvss_v3": { "attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 6.6, "baseSeverity": "MEDIUM", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:H", "version": "3.1" }, "products": [ "AppStream-8.8.0.GA:libwayland-client-0:1.21.0-1.el8.aarch64", "AppStream-8.8.0.GA:libwayland-client-0:1.21.0-1.el8.i686", "AppStream-8.8.0.GA:libwayland-client-0:1.21.0-1.el8.ppc64le", "AppStream-8.8.0.GA:libwayland-client-0:1.21.0-1.el8.s390x", "AppStream-8.8.0.GA:libwayland-client-0:1.21.0-1.el8.x86_64", "AppStream-8.8.0.GA:libwayland-client-debuginfo-0:1.21.0-1.el8.aarch64", "AppStream-8.8.0.GA:libwayland-client-debuginfo-0:1.21.0-1.el8.i686", "AppStream-8.8.0.GA:libwayland-client-debuginfo-0:1.21.0-1.el8.ppc64le", "AppStream-8.8.0.GA:libwayland-client-debuginfo-0:1.21.0-1.el8.s390x", 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"AppStream-8.8.0.GA:wayland-devel-0:1.21.0-1.el8.x86_64", "AppStream-8.8.0.GA:wayland-devel-debuginfo-0:1.21.0-1.el8.aarch64", "AppStream-8.8.0.GA:wayland-devel-debuginfo-0:1.21.0-1.el8.i686", "AppStream-8.8.0.GA:wayland-devel-debuginfo-0:1.21.0-1.el8.ppc64le", "AppStream-8.8.0.GA:wayland-devel-debuginfo-0:1.21.0-1.el8.s390x", "AppStream-8.8.0.GA:wayland-devel-debuginfo-0:1.21.0-1.el8.x86_64" ] } ], "threats": [ { "category": "impact", "details": "Moderate" } ], "title": "wayland: libwayland-server wl_shm reference-count overflow" } ] }
wid-sec-w-2023-1238
Vulnerability from csaf_certbund
Published
2023-05-16 22:00
Modified
2023-11-15 23:00
Summary
Red Hat Enterprise Linux: Mehrere Schwachstellen in verschiedenen Komponenten
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
Red Hat Enterprise Linux (RHEL) ist eine populäre Linux-Distribution.
Angriff
Ein entfernter, anonymer oder lokaler Angreifer kann mehrere Schwachstellen in verschiedenen Komponenten von Red Hat Enterprise Linux ausnutzen, um die Vertraulichkeit, Integrität und Verfügbarkeit zu gefährden.
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": "Red Hat Enterprise Linux (RHEL) ist eine popul\u00e4re Linux-Distribution.", "title": "Produktbeschreibung" }, { "category": "summary", "text": "Ein entfernter, anonymer oder lokaler Angreifer kann mehrere Schwachstellen in verschiedenen Komponenten von Red Hat Enterprise Linux ausnutzen, um die Vertraulichkeit, Integrit\u00e4t und Verf\u00fcgbarkeit zu gef\u00e4hrden.", "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-2023-1238 - CSAF Version", "url": "https://wid.cert-bund.de/.well-known/csaf/white/2023/wid-sec-w-2023-1238.json" }, { "category": "self", "summary": "WID-SEC-2023-1238 - Portal Version", "url": "https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2023-1238" }, { "category": "external", "summary": "Amazon Linux Security Advisory ALAS-2023-2343 vom 2023-11-16", "url": "https://alas.aws.amazon.com/AL2/ALAS-2023-2343.html" }, { "category": "external", "summary": "Amazon Linux Security Advisory ALAS2-2023-2103 vom 2023-07-01", "url": "https://alas.aws.amazon.com/AL2/ALAS-2023-2103.html" }, { "category": "external", "summary": "Oracle Linux Security Advisory ELSA-2023-3097 vom 2023-05-24", "url": "https://linux.oracle.com/errata/ELSA-2023-3097.html" }, { "category": "external", "summary": "Oracle Linux Security Advisory ELSA-2023-2863 vom 2023-05-24", "url": "https://linux.oracle.com/errata/ELSA-2023-2863.html" }, { "category": "external", "summary": "Oracle Linux Security Advisory ELSA-2023-2898 vom 2023-05-24", "url": "https://linux.oracle.com/errata/ELSA-2023-2898.html" }, { "category": "external", "summary": "Red Hat Security Advisory vom 2023-05-16", "url": "https://access.redhat.com/errata/RHSA-2023:3097" }, { "category": "external", "summary": "Red Hat Security Advisory vom 2023-05-16", "url": "https://access.redhat.com/errata/RHSA-2023:2898" }, { "category": "external", "summary": "Red Hat Security Advisory vom 2023-05-16", "url": "https://access.redhat.com/errata/RHSA-2023:2863" }, { "category": "external", "summary": "Red Hat Security Advisory vom 2023-05-16", "url": "https://access.redhat.com/errata/RHSA-2023:2786" } ], "source_lang": "en-US", "title": "Red Hat Enterprise Linux: Mehrere Schwachstellen in verschiedenen Komponenten", "tracking": { "current_release_date": "2023-11-15T23:00:00.000+00:00", "generator": { "date": "2024-02-15T17:28:03.391+00:00", "engine": { "name": "BSI-WID", "version": "1.3.0" } }, "id": "WID-SEC-W-2023-1238", "initial_release_date": "2023-05-16T22:00:00.000+00:00", "revision_history": [ { "date": "2023-05-16T22:00:00.000+00:00", "number": "1", "summary": "Initiale Fassung" }, { "date": "2023-05-23T22:00:00.000+00:00", "number": "2", "summary": "Neue Updates von Oracle Linux aufgenommen" }, { "date": "2023-05-24T22:00:00.000+00:00", "number": "3", "summary": "Neue Updates von Oracle Linux aufgenommen" }, { "date": "2023-07-02T22:00:00.000+00:00", "number": "4", "summary": "Neue Updates von Amazon aufgenommen" }, { "date": "2023-11-15T23:00:00.000+00:00", "number": "5", "summary": "Neue Updates von Amazon aufgenommen" } ], "status": "final", "version": "5" } }, "product_tree": { "branches": [ { "branches": [ { "category": "product_name", "name": "Amazon Linux 2", "product": { "name": "Amazon Linux 2", "product_id": "398363", "product_identification_helper": { "cpe": "cpe:/o:amazon:linux_2:-" } } } ], "category": "vendor", "name": "Amazon" }, { "branches": [ { "category": "product_name", "name": "Oracle Linux", "product": { "name": "Oracle Linux", "product_id": "T004914", "product_identification_helper": { "cpe": "cpe:/o:oracle:linux:-" } } } ], "category": "vendor", "name": "Oracle" }, { "branches": [ { "category": "product_name", "name": "Red Hat Enterprise Linux 8", "product": { "name": "Red Hat Enterprise Linux 8", "product_id": "T014111", "product_identification_helper": { "cpe": "cpe:/o:redhat:enterprise_linux:8" } } } ], "category": "vendor", "name": "Red Hat" } ] }, "vulnerabilities": [ { "cve": "CVE-2023-25567", "notes": [ { "category": "description", "text": "Es existieren mehrere Schwachstellen in Red Hat Enterprise Linux. Betroffen sind die Komponenten \"wayland\", \"ctags\", \"libtar\" und \"gssntlmssp\". Ein entfernter, anonymer oder lokaler Angreifer kann diese Schwachstellen ausnutzen, um die Vertraulichkeit, die Integrit\u00e4t und die Verf\u00fcgbarkeit zu beeintr\u00e4chtigen. Zur erfolgreichen Ausnutzung einiger dieser Schwachstellen ist eine Benutzeraktion erforderlich." } ], "product_status": { "known_affected": [ "398363", "T004914", "T014111" ] }, "release_date": "2023-05-16T22:00:00Z", "title": "CVE-2023-25567" }, { "cve": "CVE-2023-25566", "notes": [ { "category": "description", "text": "Es existieren mehrere Schwachstellen in Red Hat Enterprise Linux. Betroffen sind die Komponenten \"wayland\", \"ctags\", \"libtar\" und \"gssntlmssp\". Ein entfernter, anonymer oder lokaler Angreifer kann diese Schwachstellen ausnutzen, um die Vertraulichkeit, die Integrit\u00e4t und die Verf\u00fcgbarkeit zu beeintr\u00e4chtigen. Zur erfolgreichen Ausnutzung einiger dieser Schwachstellen ist eine Benutzeraktion erforderlich." } ], "product_status": { "known_affected": [ "398363", "T004914", "T014111" ] }, "release_date": "2023-05-16T22:00:00Z", "title": "CVE-2023-25566" }, { "cve": "CVE-2023-25565", "notes": [ { "category": "description", "text": "Es existieren mehrere Schwachstellen in Red Hat Enterprise Linux. Betroffen sind die Komponenten \"wayland\", \"ctags\", \"libtar\" und \"gssntlmssp\". Ein entfernter, anonymer oder lokaler Angreifer kann diese Schwachstellen ausnutzen, um die Vertraulichkeit, die Integrit\u00e4t und die Verf\u00fcgbarkeit zu beeintr\u00e4chtigen. Zur erfolgreichen Ausnutzung einiger dieser Schwachstellen ist eine Benutzeraktion erforderlich." } ], "product_status": { "known_affected": [ "398363", "T004914", "T014111" ] }, "release_date": "2023-05-16T22:00:00Z", "title": "CVE-2023-25565" }, { "cve": "CVE-2023-25564", "notes": [ { "category": "description", "text": "Es existieren mehrere Schwachstellen in Red Hat Enterprise Linux. Betroffen sind die Komponenten \"wayland\", \"ctags\", \"libtar\" und \"gssntlmssp\". Ein entfernter, anonymer oder lokaler Angreifer kann diese Schwachstellen ausnutzen, um die Vertraulichkeit, die Integrit\u00e4t und die Verf\u00fcgbarkeit zu beeintr\u00e4chtigen. Zur erfolgreichen Ausnutzung einiger dieser Schwachstellen ist eine Benutzeraktion erforderlich." } ], "product_status": { "known_affected": [ "398363", "T004914", "T014111" ] }, "release_date": "2023-05-16T22:00:00Z", "title": "CVE-2023-25564" }, { "cve": "CVE-2023-25563", "notes": [ { "category": "description", "text": "Es existieren mehrere Schwachstellen in Red Hat Enterprise Linux. Betroffen sind die Komponenten \"wayland\", \"ctags\", \"libtar\" und \"gssntlmssp\". Ein entfernter, anonymer oder lokaler Angreifer kann diese Schwachstellen ausnutzen, um die Vertraulichkeit, die Integrit\u00e4t und die Verf\u00fcgbarkeit zu beeintr\u00e4chtigen. Zur erfolgreichen Ausnutzung einiger dieser Schwachstellen ist eine Benutzeraktion erforderlich." } ], "product_status": { "known_affected": [ "398363", "T004914", "T014111" ] }, "release_date": "2023-05-16T22:00:00Z", "title": "CVE-2023-25563" }, { "cve": "CVE-2022-4515", "notes": [ { "category": "description", "text": "Es existieren mehrere Schwachstellen in Red Hat Enterprise Linux. Betroffen sind die Komponenten \"wayland\", \"ctags\", \"libtar\" und \"gssntlmssp\". Ein entfernter, anonymer oder lokaler Angreifer kann diese Schwachstellen ausnutzen, um die Vertraulichkeit, die Integrit\u00e4t und die Verf\u00fcgbarkeit zu beeintr\u00e4chtigen. Zur erfolgreichen Ausnutzung einiger dieser Schwachstellen ist eine Benutzeraktion erforderlich." } ], "product_status": { "known_affected": [ "398363", "T004914", "T014111" ] }, "release_date": "2023-05-16T22:00:00Z", "title": "CVE-2022-4515" }, { "cve": "CVE-2021-3782", "notes": [ { "category": "description", "text": "Es existieren mehrere Schwachstellen in Red Hat Enterprise Linux. Betroffen sind die Komponenten \"wayland\", \"ctags\", \"libtar\" und \"gssntlmssp\". Ein entfernter, anonymer oder lokaler Angreifer kann diese Schwachstellen ausnutzen, um die Vertraulichkeit, die Integrit\u00e4t und die Verf\u00fcgbarkeit zu beeintr\u00e4chtigen. Zur erfolgreichen Ausnutzung einiger dieser Schwachstellen ist eine Benutzeraktion erforderlich." } ], "product_status": { "known_affected": [ "398363", "T004914", "T014111" ] }, "release_date": "2023-05-16T22:00:00Z", "title": "CVE-2021-3782" }, { "cve": "CVE-2021-33646", "notes": [ { "category": "description", "text": "Es existieren mehrere Schwachstellen in Red Hat Enterprise Linux. Betroffen sind die Komponenten \"wayland\", \"ctags\", \"libtar\" und \"gssntlmssp\". Ein entfernter, anonymer oder lokaler Angreifer kann diese Schwachstellen ausnutzen, um die Vertraulichkeit, die Integrit\u00e4t und die Verf\u00fcgbarkeit zu beeintr\u00e4chtigen. Zur erfolgreichen Ausnutzung einiger dieser Schwachstellen ist eine Benutzeraktion erforderlich." } ], "product_status": { "known_affected": [ "398363", "T004914", "T014111" ] }, "release_date": "2023-05-16T22:00:00Z", "title": "CVE-2021-33646" }, { "cve": "CVE-2021-33645", "notes": [ { "category": "description", "text": "Es existieren mehrere Schwachstellen in Red Hat Enterprise Linux. Betroffen sind die Komponenten \"wayland\", \"ctags\", \"libtar\" und \"gssntlmssp\". Ein entfernter, anonymer oder lokaler Angreifer kann diese Schwachstellen ausnutzen, um die Vertraulichkeit, die Integrit\u00e4t und die Verf\u00fcgbarkeit zu beeintr\u00e4chtigen. Zur erfolgreichen Ausnutzung einiger dieser Schwachstellen ist eine Benutzeraktion erforderlich." } ], "product_status": { "known_affected": [ "398363", "T004914", "T014111" ] }, "release_date": "2023-05-16T22:00:00Z", "title": "CVE-2021-33645" }, { "cve": "CVE-2021-33644", "notes": [ { "category": "description", "text": "Es existieren mehrere Schwachstellen in Red Hat Enterprise Linux. Betroffen sind die Komponenten \"wayland\", \"ctags\", \"libtar\" und \"gssntlmssp\". Ein entfernter, anonymer oder lokaler Angreifer kann diese Schwachstellen ausnutzen, um die Vertraulichkeit, die Integrit\u00e4t und die Verf\u00fcgbarkeit zu beeintr\u00e4chtigen. Zur erfolgreichen Ausnutzung einiger dieser Schwachstellen ist eine Benutzeraktion erforderlich." } ], "product_status": { "known_affected": [ "398363", "T004914", "T014111" ] }, "release_date": "2023-05-16T22:00:00Z", "title": "CVE-2021-33644" }, { "cve": "CVE-2021-33643", "notes": [ { "category": "description", "text": "Es existieren mehrere Schwachstellen in Red Hat Enterprise Linux. Betroffen sind die Komponenten \"wayland\", \"ctags\", \"libtar\" und \"gssntlmssp\". Ein entfernter, anonymer oder lokaler Angreifer kann diese Schwachstellen ausnutzen, um die Vertraulichkeit, die Integrit\u00e4t und die Verf\u00fcgbarkeit zu beeintr\u00e4chtigen. Zur erfolgreichen Ausnutzung einiger dieser Schwachstellen ist eine Benutzeraktion erforderlich." } ], "product_status": { "known_affected": [ "398363", "T004914", "T014111" ] }, "release_date": "2023-05-16T22:00:00Z", "title": "CVE-2021-33643" } ] }
gsd-2021-3782
Vulnerability from gsd
Modified
2023-12-13 01:23
Details
An internal reference count is held on the buffer pool, incremented every time a new buffer is created from the pool. The reference count is maintained as an int; on LP64 systems this can cause the reference count to overflow if the client creates a large number of wl_shm buffer objects, or if it can coerce the server to create a large number of external references to the buffer storage. With the reference count overflowing, a use-after-free can be constructed on the wl_shm_pool tracking structure, where values may be incremented or decremented; it may also be possible to construct a limited oracle to leak 4 bytes of server-side memory to the attacking client at a time.
Aliases
Aliases
{ "GSD": { "alias": "CVE-2021-3782", "id": "GSD-2021-3782", "references": [ "https://advisories.mageia.org/CVE-2021-3782.html", "https://www.suse.com/security/cve/CVE-2021-3782.html", "https://ubuntu.com/security/CVE-2021-3782" ] }, "gsd": { "metadata": { "exploitCode": "unknown", "remediation": "unknown", "reportConfidence": "confirmed", "type": "vulnerability" }, "osvSchema": { "aliases": [ "CVE-2021-3782" ], "details": "An internal reference count is held on the buffer pool, incremented every time a new buffer is created from the pool. The reference count is maintained as an int; on LP64 systems this can cause the reference count to overflow if the client creates a large number of wl_shm buffer objects, or if it can coerce the server to create a large number of external references to the buffer storage. With the reference count overflowing, a use-after-free can be constructed on the wl_shm_pool tracking structure, where values may be incremented or decremented; it may also be possible to construct a limited oracle to leak 4 bytes of server-side memory to the attacking client at a time.", "id": "GSD-2021-3782", "modified": "2023-12-13T01:23:35.178712Z", "schema_version": "1.4.0" } }, "namespaces": { "cve.org": { "CVE_data_meta": { "ASSIGNER": "secalert@redhat.com", "ID": "CVE-2021-3782", "STATE": "PUBLIC" }, "affects": { "vendor": { "vendor_data": [ { "product": { "product_data": [ { "product_name": "wayland", "version": { "version_data": [ { "version_value": "wayland 1.20.91" } ] } } ] }, "vendor_name": "n/a" } ] } }, "data_format": "MITRE", "data_type": "CVE", "data_version": "4.0", "description": { "description_data": [ { "lang": "eng", "value": "An internal reference count is held on the buffer pool, incremented every time a new buffer is created from the pool. The reference count is maintained as an int; on LP64 systems this can cause the reference count to overflow if the client creates a large number of wl_shm buffer objects, or if it can coerce the server to create a large number of external references to the buffer storage. With the reference count overflowing, a use-after-free can be constructed on the wl_shm_pool tracking structure, where values may be incremented or decremented; it may also be possible to construct a limited oracle to leak 4 bytes of server-side memory to the attacking client at a time." } ] }, "problemtype": { "problemtype_data": [ { "description": [ { "lang": "eng", "value": "(CWE-190|CWE-911)-\u003eCWE-416" } ] } ] }, "references": { "reference_data": [ { "name": "https://gitlab.freedesktop.org/wayland/wayland/-/issues/224", "refsource": "MISC", "url": "https://gitlab.freedesktop.org/wayland/wayland/-/issues/224" } ] } }, "nvd.nist.gov": { "configurations": { "CVE_data_version": "4.0", "nodes": [ { "children": [], "cpe_match": [ { "cpe23Uri": "cpe:2.3:a:wayland:wayland:*:*:*:*:*:*:*:*", "cpe_name": [], "versionEndExcluding": "1.20.91", "vulnerable": true } ], "operator": "OR" } ] }, "cve": { "CVE_data_meta": { "ASSIGNER": "secalert@redhat.com", "ID": "CVE-2021-3782" }, "data_format": "MITRE", "data_type": "CVE", "data_version": "4.0", "description": { "description_data": [ { "lang": "en", "value": "An internal reference count is held on the buffer pool, incremented every time a new buffer is created from the pool. The reference count is maintained as an int; on LP64 systems this can cause the reference count to overflow if the client creates a large number of wl_shm buffer objects, or if it can coerce the server to create a large number of external references to the buffer storage. With the reference count overflowing, a use-after-free can be constructed on the wl_shm_pool tracking structure, where values may be incremented or decremented; it may also be possible to construct a limited oracle to leak 4 bytes of server-side memory to the attacking client at a time." } ] }, "problemtype": { "problemtype_data": [ { "description": [ { "lang": "en", "value": "CWE-190" } ] } ] }, "references": { "reference_data": [ { "name": "https://gitlab.freedesktop.org/wayland/wayland/-/issues/224", "refsource": "MISC", "tags": [ "Exploit", "Issue Tracking", "Patch", "Third Party Advisory" ], "url": "https://gitlab.freedesktop.org/wayland/wayland/-/issues/224" } ] } }, "impact": { "baseMetricV3": { "cvssV3": { "attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 6.6, "baseSeverity": "MEDIUM", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:H", "version": "3.1" }, "exploitabilityScore": 1.8, "impactScore": 4.7 } }, "lastModifiedDate": "2023-06-26T17:47Z", "publishedDate": "2022-09-23T16:15Z" } } }
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Sightings
Author | Source | Type | Date |
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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.