var-202104-0328
Vulnerability from variot
curl 7.63.0 to and including 7.75.0 includes vulnerability that allows a malicious HTTPS proxy to MITM a connection due to bad handling of TLS 1.3 session tickets. When using a HTTPS proxy and TLS 1.3, libcurl can confuse session tickets arriving from the HTTPS proxy but work as if they arrived from the remote server and then wrongly "short-cut" the host handshake. When confusing the tickets, a HTTPS proxy can trick libcurl to use the wrong session ticket resume for the host and thereby circumvent the server TLS certificate check and make a MITM attack to be possible to perform unnoticed. Note that such a malicious HTTPS proxy needs to provide a certificate that curl will accept for the MITMed server for an attack to work - unless curl has been told to ignore the server certificate check. curl Contains a spoofing authentication evasion vulnerability.Information may be tampered with. Pillow is a Python-based image processing library. There is currently no information about this vulnerability, please feel free to follow CNNVD or manufacturer announcements. - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Gentoo Linux Security Advisory GLSA 202105-36
https://security.gentoo.org/
Severity: High Title: cURL: Multiple vulnerabilities Date: May 26, 2021 Bugs: #779535, #792192 ID: 202105-36
Synopsis
Multiple vulnerabilities have been found in cURL, the worst of which could result in the arbitrary execution of code.
Background
A command line tool and library for transferring data with URLs.
Affected packages
-------------------------------------------------------------------
Package / Vulnerable / Unaffected
-------------------------------------------------------------------
1 net-misc/curl < 7.77.0 >= 7.77.0
Description
Multiple vulnerabilities have been discovered in cURL. Please review the CVE identifiers referenced below for details.
Impact
Please review the referenced CVE identifiers for details.
Workaround
There is no known workaround at this time.
Resolution
All cURL users should upgrade to the latest version:
# emerge --sync # emerge --ask --oneshot --verbose ">=net-misc/curl-7.77.0"
References
[ 1 ] CVE-2021-22876 https://nvd.nist.gov/vuln/detail/CVE-2021-22876 [ 2 ] CVE-2021-22890 https://nvd.nist.gov/vuln/detail/CVE-2021-22890 [ 3 ] CVE-2021-22898 https://nvd.nist.gov/vuln/detail/CVE-2021-22898 [ 4 ] CVE-2021-22901 https://nvd.nist.gov/vuln/detail/CVE-2021-22901
Availability
This GLSA and any updates to it are available for viewing at the Gentoo Security Website:
https://security.gentoo.org/glsa/202105-36
Concerns?
Security is a primary focus of Gentoo Linux and ensuring the confidentiality and security of our users' machines is of utmost importance to us. Any security concerns should be addressed to security@gentoo.org or alternatively, you may file a bug at https://bugs.gentoo.org.
License
Copyright 2021 Gentoo Foundation, Inc; referenced text belongs to its owner(s).
The contents of this document are licensed under the Creative Commons - Attribution / Share Alike license.
https://creativecommons.org/licenses/by-sa/2.5 . -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256
===================================================================== Red Hat Security Advisory
Synopsis: Important: Red Hat JBoss Core Services Apache HTTP Server 2.4.37 SP8 security update Advisory ID: RHSA-2021:2471-01 Product: Red Hat JBoss Core Services Advisory URL: https://access.redhat.com/errata/RHSA-2021:2471 Issue date: 2021-06-17 CVE Names: CVE-2020-8169 CVE-2020-8284 CVE-2020-8285 CVE-2020-8286 CVE-2021-22876 CVE-2021-22890 CVE-2021-22901 CVE-2021-31618 =====================================================================
- Summary:
Red Hat JBoss Core Services Pack Apache Server 2.4.37 Service Pack 8 zip release for RHEL 7, RHEL 8 and Microsoft Windows is available.
Red Hat Product Security has rated this update as having a security impact of Important. 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.
- Description:
Red Hat JBoss Core Services is a set of supplementary software for Red Hat JBoss middleware products. This software, such as Apache HTTP Server, is common to multiple JBoss middleware products, and is packaged under Red Hat JBoss Core Services to allow for faster distribution of updates, and for a more consistent update experience.
This release adds the new Apache HTTP Server 2.4.37 Service Pack 8 packages that are part of the JBoss Core Services offering.
This release serves as a replacement for Red Hat JBoss Core Services Pack Apache Server 2.4.37 Service Pack 7 and includes bug fixes and enhancements. Refer to the Release Notes for information on the most significant bug fixes and enhancements included in this release.
Security Fix(es):
-
curl: Use-after-free in TLS session handling when using OpenSSL TLS backend (CVE-2021-22901)
-
httpd: NULL pointer dereference on specially crafted HTTP/2 request (CVE-2021-31618)
-
libcurl: partial password leak over DNS on HTTP redirect (CVE-2020-8169)
-
curl: FTP PASV command response can cause curl to connect to arbitrary host (CVE-2020-8284)
-
curl: Malicious FTP server can trigger stack overflow when CURLOPT_CHUNK_BGN_FUNCTION is used (CVE-2020-8285)
-
curl: Inferior OCSP verification (CVE-2020-8286)
-
curl: Leak of authentication credentials in URL via automatic Referer (CVE-2021-22876)
-
curl: TLS 1.3 session ticket mix-up with HTTPS proxy host (CVE-2021-22890)
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.
- Solution:
Before applying the update, back up your existing installation, including all applications, configuration files, databases and database settings, and so on.
The References section of this erratum contains a download link for the update. You must be logged in to download the update.
- Bugs fixed (https://bugzilla.redhat.com/):
1847916 - CVE-2020-8169 libcurl: partial password leak over DNS on HTTP redirect 1902667 - CVE-2020-8284 curl: FTP PASV command response can cause curl to connect to arbitrary host 1902687 - CVE-2020-8285 curl: Malicious FTP server can trigger stack overflow when CURLOPT_CHUNK_BGN_FUNCTION is used 1906096 - CVE-2020-8286 curl: Inferior OCSP verification 1941964 - CVE-2021-22876 curl: Leak of authentication credentials in URL via automatic Referer 1941965 - CVE-2021-22890 curl: TLS 1.3 session ticket mix-up with HTTPS proxy host 1963146 - CVE-2021-22901 curl: Use-after-free in TLS session handling when using OpenSSL TLS backend 1968013 - CVE-2021-31618 httpd: NULL pointer dereference on specially crafted HTTP/2 request
- References:
https://access.redhat.com/security/cve/CVE-2020-8169 https://access.redhat.com/security/cve/CVE-2020-8284 https://access.redhat.com/security/cve/CVE-2020-8285 https://access.redhat.com/security/cve/CVE-2020-8286 https://access.redhat.com/security/cve/CVE-2021-22876 https://access.redhat.com/security/cve/CVE-2021-22890 https://access.redhat.com/security/cve/CVE-2021-22901 https://access.redhat.com/security/cve/CVE-2021-31618 https://access.redhat.com/security/updates/classification/#important https://access.redhat.com/jbossnetwork/restricted/listSoftware.html?product=core.service.apachehttp&downloadType=securityPatches&version=2.4.37 https://access.redhat.com/jbossnetwork/restricted/listSoftware.html?product=core.service.openssl&downloadType=securityPatches&version=1.1.1g https://access.redhat.com/documentation/en-us/red_hat_jboss_core_services/2.4.37/
- Contact:
The Red Hat security contact is secalert@redhat.com. More contact details at https://access.redhat.com/security/team/contact/
Copyright 2021 Red Hat, Inc. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1
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-- RHSA-announce mailing list RHSA-announce@redhat.com https://listman.redhat.com/mailman/listinfo/rhsa-announce . Solution:
For details on how to apply this update, which includes the changes described in this advisory, refer to:
https://access.redhat.com/articles/11258
After installing the updated packages, the httpd daemon will be restarted automatically. Applications using the APR libraries, such as httpd, must be restarted for this update to take effect. Our key and details on how to verify the signature are available from https://access.redhat.com/security/team/key/
- ========================================================================== Ubuntu Security Notice USN-4898-1 March 31, 2021
curl vulnerabilities
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 20.10
- Ubuntu 20.04 LTS
- Ubuntu 18.04 LTS
- Ubuntu 16.04 LTS
Summary:
curl could be made to expose sensitive information over the network. A remote attacker could possibly use this issue to obtain sensitive information. A remote attacker in control of an HTTPS proxy could use this issue to bypass certificate checks and intercept communications. This issue only affected Ubuntu 20.04 LTS and Ubuntu 20.10. (CVE-2021-22890)
Update instructions:
The problem can be corrected by updating your system to the following package versions:
Ubuntu 20.10: curl 7.68.0-1ubuntu4.3 libcurl3-gnutls 7.68.0-1ubuntu4.3 libcurl3-nss 7.68.0-1ubuntu4.3 libcurl4 7.68.0-1ubuntu4.3
Ubuntu 20.04 LTS: curl 7.68.0-1ubuntu2.5 libcurl3-gnutls 7.68.0-1ubuntu2.5 libcurl3-nss 7.68.0-1ubuntu2.5 libcurl4 7.68.0-1ubuntu2.5
Ubuntu 18.04 LTS: curl 7.58.0-2ubuntu3.13 libcurl3-gnutls 7.58.0-2ubuntu3.13 libcurl3-nss 7.58.0-2ubuntu3.13 libcurl4 7.58.0-2ubuntu3.13
Ubuntu 16.04 LTS: curl 7.47.0-1ubuntu2.19 libcurl3 7.47.0-1ubuntu2.19 libcurl3-gnutls 7.47.0-1ubuntu2.19 libcurl3-nss 7.47.0-1ubuntu2.19
In general, a standard system update will make all the necessary changes. -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA512
Debian Security Advisory DSA-4881-1 security@debian.org https://www.debian.org/security/ Alessandro Ghedini March 30, 2021 https://www.debian.org/security/faq
Package : curl CVE ID : CVE-2020-8169 CVE-2020-8177 CVE-2020-8231 CVE-2020-8284 CVE-2020-8285 CVE-2020-8286 CVE-2021-22876 CVE-2021-22890 Debian Bug : 965280 965281 968831 977161 977162 977163
Multiple vulnerabilities were discovered in cURL, an URL transfer library:
CVE-2020-8169
Marek Szlagor reported that libcurl could be tricked into prepending
a part of the password to the host name before it resolves it,
potentially leaking the partial password over the network and to the
DNS server(s).
CVE-2020-8177
sn reported that curl could be tricked by a malicious server into
overwriting a local file when using th -J (--remote-header-name) and
-i (--include) options in the same command line.
CVE-2020-8231
Marc Aldorasi reported that libcurl might use the wrong connection
when an application using libcurl's multi API sets the option
CURLOPT_CONNECT_ONLY, which could lead to information leaks.
CVE-2020-8284
Varnavas Papaioannou reported that a malicious server could use the
PASV response to trick curl into connecting back to an arbitrary IP
address and port, potentially making curl extract information about
services that are otherwise private and not disclosed.
CVE-2020-8285
xnynx reported that libcurl could run out of stack space when using
tha FTP wildcard matching functionality (CURLOPT_CHUNK_BGN_FUNCTION).
CVE-2020-8286
It was reported that libcurl didn't verify that an OCSP response
actually matches the certificate it is intended to.
CVE-2021-22876
Viktor Szakats reported that libcurl does not strip off user
credentials from the URL when automatically populating the Referer
HTTP request header field in outgoing HTTP requests.
For the stable distribution (buster), these problems have been fixed in version 7.64.0-4+deb10u2.
We recommend that you upgrade your curl packages.
For the detailed security status of curl please refer to its security tracker page at: https://security-tracker.debian.org/tracker/curl
Further information about Debian Security Advisories, how to apply these updates to your system and frequently asked questions can be found at: https://www.debian.org/security/
Mailing list: debian-security-announce@lists.debian.org -----BEGIN PGP SIGNATURE-----
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"data": "curl 7.63.0 to and including 7.75.0 includes vulnerability that allows a malicious HTTPS proxy to MITM a connection due to bad handling of TLS 1.3 session tickets. When using a HTTPS proxy and TLS 1.3, libcurl can confuse session tickets arriving from the HTTPS proxy but work as if they arrived from the remote server and then wrongly \"short-cut\" the host handshake. When confusing the tickets, a HTTPS proxy can trick libcurl to use the wrong session ticket resume for the host and thereby circumvent the server TLS certificate check and make a MITM attack to be possible to perform unnoticed. Note that such a malicious HTTPS proxy needs to provide a certificate that curl will accept for the MITMed server for an attack to work - unless curl has been told to ignore the server certificate check. curl Contains a spoofing authentication evasion vulnerability.Information may be tampered with. Pillow is a Python-based image processing library. \nThere is currently no information about this vulnerability, please feel free to follow CNNVD or manufacturer announcements. - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -\nGentoo Linux Security Advisory GLSA 202105-36\n- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -\n https://security.gentoo.org/\n- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -\n\n Severity: High\n Title: cURL: Multiple vulnerabilities\n Date: May 26, 2021\n Bugs: #779535, #792192\n ID: 202105-36\n\n- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -\n\nSynopsis\n========\n\nMultiple vulnerabilities have been found in cURL, the worst of which\ncould result in the arbitrary execution of code. \n\nBackground\n==========\n\nA command line tool and library for transferring data with URLs. \n\nAffected packages\n=================\n\n -------------------------------------------------------------------\n Package / Vulnerable / Unaffected\n -------------------------------------------------------------------\n 1 net-misc/curl \u003c 7.77.0 \u003e= 7.77.0\n\nDescription\n===========\n\nMultiple vulnerabilities have been discovered in cURL. Please review\nthe CVE identifiers referenced below for details. \n\nImpact\n======\n\nPlease review the referenced CVE identifiers for details. \n\nWorkaround\n==========\n\nThere is no known workaround at this time. \n\nResolution\n==========\n\nAll cURL users should upgrade to the latest version:\n\n # emerge --sync\n # emerge --ask --oneshot --verbose \"\u003e=net-misc/curl-7.77.0\"\n\nReferences\n==========\n\n[ 1 ] CVE-2021-22876\n https://nvd.nist.gov/vuln/detail/CVE-2021-22876\n[ 2 ] CVE-2021-22890\n https://nvd.nist.gov/vuln/detail/CVE-2021-22890\n[ 3 ] CVE-2021-22898\n https://nvd.nist.gov/vuln/detail/CVE-2021-22898\n[ 4 ] CVE-2021-22901\n https://nvd.nist.gov/vuln/detail/CVE-2021-22901\n\nAvailability\n============\n\nThis GLSA and any updates to it are available for viewing at\nthe Gentoo Security Website:\n\n https://security.gentoo.org/glsa/202105-36\n\nConcerns?\n=========\n\nSecurity is a primary focus of Gentoo Linux and ensuring the\nconfidentiality and security of our users\u0027 machines is of utmost\nimportance to us. Any security concerns should be addressed to\nsecurity@gentoo.org or alternatively, you may file a bug at\nhttps://bugs.gentoo.org. \n\nLicense\n=======\n\nCopyright 2021 Gentoo Foundation, Inc; referenced text\nbelongs to its owner(s). \n\nThe contents of this document are licensed under the\nCreative Commons - Attribution / Share Alike license. \n\nhttps://creativecommons.org/licenses/by-sa/2.5\n. -----BEGIN PGP SIGNED MESSAGE-----\nHash: SHA256\n\n=====================================================================\n Red Hat Security Advisory\n\nSynopsis: Important: Red Hat JBoss Core Services Apache HTTP Server 2.4.37 SP8 security update\nAdvisory ID: RHSA-2021:2471-01\nProduct: Red Hat JBoss Core Services\nAdvisory URL: https://access.redhat.com/errata/RHSA-2021:2471\nIssue date: 2021-06-17\nCVE Names: CVE-2020-8169 CVE-2020-8284 CVE-2020-8285 \n CVE-2020-8286 CVE-2021-22876 CVE-2021-22890 \n CVE-2021-22901 CVE-2021-31618 \n=====================================================================\n\n1. Summary:\n\nRed Hat JBoss Core Services Pack Apache Server 2.4.37 Service Pack 8 zip\nrelease for RHEL 7, RHEL 8 and Microsoft Windows is available. \n\nRed Hat Product Security has rated this update as having a security impact\nof Important. A Common Vulnerability Scoring System (CVSS) base score,\nwhich gives a detailed severity rating, is available for each vulnerability\nfrom the CVE link(s) in the References section. \n\n2. Description:\n\nRed Hat JBoss Core Services is a set of supplementary software for Red Hat\nJBoss middleware products. This software, such as Apache HTTP Server, is\ncommon to multiple JBoss middleware products, and is packaged under Red Hat\nJBoss Core Services to allow for faster distribution of updates, and for a\nmore consistent update experience. \n\nThis release adds the new Apache HTTP Server 2.4.37 Service Pack 8 packages\nthat are part of the JBoss Core Services offering. \n\nThis release serves as a replacement for Red Hat JBoss Core Services Pack\nApache Server 2.4.37 Service Pack 7 and includes bug fixes and\nenhancements. Refer to the Release Notes for information on the most\nsignificant bug fixes and enhancements included in this release. \n\nSecurity Fix(es):\n\n* curl: Use-after-free in TLS session handling when using OpenSSL TLS\nbackend (CVE-2021-22901)\n\n* httpd: NULL pointer dereference on specially crafted HTTP/2 request\n(CVE-2021-31618)\n\n* libcurl: partial password leak over DNS on HTTP redirect (CVE-2020-8169)\n\n* curl: FTP PASV command response can cause curl to connect to arbitrary\nhost (CVE-2020-8284)\n\n* curl: Malicious FTP server can trigger stack overflow when\nCURLOPT_CHUNK_BGN_FUNCTION is used (CVE-2020-8285)\n\n* curl: Inferior OCSP verification (CVE-2020-8286)\n\n* curl: Leak of authentication credentials in URL via automatic Referer\n(CVE-2021-22876)\n\n* curl: TLS 1.3 session ticket mix-up with HTTPS proxy host\n(CVE-2021-22890)\n\nFor more details about the security issue(s), including the impact, a CVSS\nscore, acknowledgments, and other related information, refer to the CVE\npage(s) listed in the References section. \n\n3. Solution:\n\nBefore applying the update, back up your existing installation, including\nall applications, configuration files, databases and database settings, and\nso on. \n\nThe References section of this erratum contains a download link for the\nupdate. You must be logged in to download the update. \n\n4. Bugs fixed (https://bugzilla.redhat.com/):\n\n1847916 - CVE-2020-8169 libcurl: partial password leak over DNS on HTTP redirect\n1902667 - CVE-2020-8284 curl: FTP PASV command response can cause curl to connect to arbitrary host\n1902687 - CVE-2020-8285 curl: Malicious FTP server can trigger stack overflow when CURLOPT_CHUNK_BGN_FUNCTION is used\n1906096 - CVE-2020-8286 curl: Inferior OCSP verification\n1941964 - CVE-2021-22876 curl: Leak of authentication credentials in URL via automatic Referer\n1941965 - CVE-2021-22890 curl: TLS 1.3 session ticket mix-up with HTTPS proxy host\n1963146 - CVE-2021-22901 curl: Use-after-free in TLS session handling when using OpenSSL TLS backend\n1968013 - CVE-2021-31618 httpd: NULL pointer dereference on specially crafted HTTP/2 request\n\n5. References:\n\nhttps://access.redhat.com/security/cve/CVE-2020-8169\nhttps://access.redhat.com/security/cve/CVE-2020-8284\nhttps://access.redhat.com/security/cve/CVE-2020-8285\nhttps://access.redhat.com/security/cve/CVE-2020-8286\nhttps://access.redhat.com/security/cve/CVE-2021-22876\nhttps://access.redhat.com/security/cve/CVE-2021-22890\nhttps://access.redhat.com/security/cve/CVE-2021-22901\nhttps://access.redhat.com/security/cve/CVE-2021-31618\nhttps://access.redhat.com/security/updates/classification/#important\nhttps://access.redhat.com/jbossnetwork/restricted/listSoftware.html?product=core.service.apachehttp\u0026downloadType=securityPatches\u0026version=2.4.37\nhttps://access.redhat.com/jbossnetwork/restricted/listSoftware.html?product=core.service.openssl\u0026downloadType=securityPatches\u0026version=1.1.1g\nhttps://access.redhat.com/documentation/en-us/red_hat_jboss_core_services/2.4.37/\n\n6. Contact:\n\nThe Red Hat security contact is \u003csecalert@redhat.com\u003e. More contact\ndetails at https://access.redhat.com/security/team/contact/\n\nCopyright 2021 Red Hat, Inc. \n-----BEGIN PGP SIGNATURE-----\nVersion: GnuPG v1\n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\nbutyhmDY1nQ=\n=gsJD\n-----END PGP SIGNATURE-----\n\n--\nRHSA-announce mailing list\nRHSA-announce@redhat.com\nhttps://listman.redhat.com/mailman/listinfo/rhsa-announce\n. Solution:\n\nFor details on how to apply this update, which includes the changes\ndescribed in this advisory, refer to:\n\nhttps://access.redhat.com/articles/11258\n\nAfter installing the updated packages, the httpd daemon will be restarted\nautomatically. Applications using the APR libraries, such as httpd, must be\nrestarted for this update to take effect. Our key and\ndetails on how to verify the signature are available from\nhttps://access.redhat.com/security/team/key/\n\n7. ==========================================================================\nUbuntu Security Notice USN-4898-1\nMarch 31, 2021\n\ncurl vulnerabilities\n==========================================================================\n\nA security issue affects these releases of Ubuntu and its derivatives:\n\n- Ubuntu 20.10\n- Ubuntu 20.04 LTS\n- Ubuntu 18.04 LTS\n- Ubuntu 16.04 LTS\n\nSummary:\n\ncurl could be made to expose sensitive information over the network. A remote attacker could possibly use this\nissue to obtain sensitive information. A remote attacker in control of an HTTPS proxy could\nuse this issue to bypass certificate checks and intercept communications. \nThis issue only affected Ubuntu 20.04 LTS and Ubuntu 20.10. \n(CVE-2021-22890)\n\nUpdate instructions:\n\nThe problem can be corrected by updating your system to the following\npackage versions:\n\nUbuntu 20.10:\n curl 7.68.0-1ubuntu4.3\n libcurl3-gnutls 7.68.0-1ubuntu4.3\n libcurl3-nss 7.68.0-1ubuntu4.3\n libcurl4 7.68.0-1ubuntu4.3\n\nUbuntu 20.04 LTS:\n curl 7.68.0-1ubuntu2.5\n libcurl3-gnutls 7.68.0-1ubuntu2.5\n libcurl3-nss 7.68.0-1ubuntu2.5\n libcurl4 7.68.0-1ubuntu2.5\n\nUbuntu 18.04 LTS:\n curl 7.58.0-2ubuntu3.13\n libcurl3-gnutls 7.58.0-2ubuntu3.13\n libcurl3-nss 7.58.0-2ubuntu3.13\n libcurl4 7.58.0-2ubuntu3.13\n\nUbuntu 16.04 LTS:\n curl 7.47.0-1ubuntu2.19\n libcurl3 7.47.0-1ubuntu2.19\n libcurl3-gnutls 7.47.0-1ubuntu2.19\n libcurl3-nss 7.47.0-1ubuntu2.19\n\nIn general, a standard system update will make all the necessary changes. -----BEGIN PGP SIGNED MESSAGE-----\nHash: SHA512\n\n- -------------------------------------------------------------------------\nDebian Security Advisory DSA-4881-1 security@debian.org\nhttps://www.debian.org/security/ Alessandro Ghedini\nMarch 30, 2021 https://www.debian.org/security/faq\n- -------------------------------------------------------------------------\n\nPackage : curl\nCVE ID : CVE-2020-8169 CVE-2020-8177 CVE-2020-8231 CVE-2020-8284 \n CVE-2020-8285 CVE-2020-8286 CVE-2021-22876 CVE-2021-22890\nDebian Bug : 965280 965281 968831 977161 977162 977163\n\nMultiple vulnerabilities were discovered in cURL, an URL transfer library:\n\nCVE-2020-8169\n\n Marek Szlagor reported that libcurl could be tricked into prepending\n a part of the password to the host name before it resolves it,\n potentially leaking the partial password over the network and to the\n DNS server(s). \n\nCVE-2020-8177\n\n sn reported that curl could be tricked by a malicious server into\n overwriting a local file when using th -J (--remote-header-name) and\n -i (--include) options in the same command line. \n\nCVE-2020-8231\n\n Marc Aldorasi reported that libcurl might use the wrong connection\n when an application using libcurl\u0027s multi API sets the option\n CURLOPT_CONNECT_ONLY, which could lead to information leaks. \n\nCVE-2020-8284\n\n Varnavas Papaioannou reported that a malicious server could use the\n PASV response to trick curl into connecting back to an arbitrary IP\n address and port, potentially making curl extract information about\n services that are otherwise private and not disclosed. \n\nCVE-2020-8285\n\n xnynx reported that libcurl could run out of stack space when using\n tha FTP wildcard matching functionality (CURLOPT_CHUNK_BGN_FUNCTION). \n\nCVE-2020-8286\n\n It was reported that libcurl didn\u0027t verify that an OCSP response\n actually matches the certificate it is intended to. \n\nCVE-2021-22876\n\n Viktor Szakats reported that libcurl does not strip off user\n credentials from the URL when automatically populating the Referer\n HTTP request header field in outgoing HTTP requests. \n\nFor the stable distribution (buster), these problems have been fixed in\nversion 7.64.0-4+deb10u2. \n\nWe recommend that you upgrade your curl packages. \n\nFor the detailed security status of curl please refer to\nits security tracker page at:\nhttps://security-tracker.debian.org/tracker/curl\n\nFurther information about Debian Security Advisories, how to apply\nthese updates to your system and frequently asked questions can be\nfound at: https://www.debian.org/security/\n\nMailing list: debian-security-announce@lists.debian.org\n-----BEGIN PGP SIGNATURE-----\n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\n1Hx4VwwwTsMIPnrx2kriRiiDPOW1r5Kip3yHa+QZLedSRGibQWk=\n=001T\n-----END PGP SIGNATURE-----\n",
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- 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.