Security update for git SUSE Patch security@suse.de SUSE Security Team openSUSE-SU-2020:0524-1 Final 1 1 2020-04-16T08:37:53Z current 2020-04-16T08:37:53Z 2020-04-16T08:37:53Z cve-database/bin/generate-cvrf.pl 2017-02-24T01:00:00Z Security update for git This update for git fixes the following issues: - CVE-2020-5260: With a crafted URL that contains a newline in it, the credential helper machinery can be fooled to give credential information for a wrong host (bsc#1168930). This update was imported from the SUSE:SLE-15:Update update project. The CVRF data is provided by SUSE under the Creative Commons License 4.0 with Attribution (CC-BY-4.0). openSUSE-2020-524 Copyright SUSE LLC under the Creative Commons License 4.0 with Attribution (CC-BY-4.0) https://lists.opensuse.org/archives/list/security-announce@lists.opensuse.org/thread/FTDYLTR4TUBTNP4EFF5L2ZOAKYAB4Z2U/ E-Mail link for openSUSE-SU-2020:0524-1 https://www.suse.com/support/security/rating/ SUSE Security Ratings https://bugzilla.suse.com/1168930 SUSE Bug 1168930 https://www.suse.com/security/cve/CVE-2020-5260/ SUSE CVE CVE-2020-5260 page openSUSE Leap 15.1 git-2.16.4-lp151.4.6.1 git-arch-2.16.4-lp151.4.6.1 git-core-2.16.4-lp151.4.6.1 git-credential-gnome-keyring-2.16.4-lp151.4.6.1 git-credential-libsecret-2.16.4-lp151.4.6.1 git-cvs-2.16.4-lp151.4.6.1 git-daemon-2.16.4-lp151.4.6.1 git-doc-2.16.4-lp151.4.6.1 git-email-2.16.4-lp151.4.6.1 git-gui-2.16.4-lp151.4.6.1 git-p4-2.16.4-lp151.4.6.1 git-svn-2.16.4-lp151.4.6.1 git-web-2.16.4-lp151.4.6.1 gitk-2.16.4-lp151.4.6.1 git-2.16.4-lp151.4.6.1 as a component of openSUSE Leap 15.1 git-arch-2.16.4-lp151.4.6.1 as a component of openSUSE Leap 15.1 git-core-2.16.4-lp151.4.6.1 as a component of openSUSE Leap 15.1 git-credential-gnome-keyring-2.16.4-lp151.4.6.1 as a component of openSUSE Leap 15.1 git-credential-libsecret-2.16.4-lp151.4.6.1 as a component of openSUSE Leap 15.1 git-cvs-2.16.4-lp151.4.6.1 as a component of openSUSE Leap 15.1 git-daemon-2.16.4-lp151.4.6.1 as a component of openSUSE Leap 15.1 git-doc-2.16.4-lp151.4.6.1 as a component of openSUSE Leap 15.1 git-email-2.16.4-lp151.4.6.1 as a component of openSUSE Leap 15.1 git-gui-2.16.4-lp151.4.6.1 as a component of openSUSE Leap 15.1 git-p4-2.16.4-lp151.4.6.1 as a component of openSUSE Leap 15.1 git-svn-2.16.4-lp151.4.6.1 as a component of openSUSE Leap 15.1 git-web-2.16.4-lp151.4.6.1 as a component of openSUSE Leap 15.1 gitk-2.16.4-lp151.4.6.1 as a component of openSUSE Leap 15.1 Affected versions of Git have a vulnerability whereby Git can be tricked into sending private credentials to a host controlled by an attacker. Git uses external "credential helper" programs to store and retrieve passwords or other credentials from secure storage provided by the operating system. Specially-crafted URLs that contain an encoded newline can inject unintended values into the credential helper protocol stream, causing the credential helper to retrieve the password for one server (e.g., good.example.com) for an HTTP request being made to another server (e.g., evil.example.com), resulting in credentials for the former being sent to the latter. There are no restrictions on the relationship between the two, meaning that an attacker can craft a URL that will present stored credentials for any host to a host of their choosing. The vulnerability can be triggered by feeding a malicious URL to git clone. However, the affected URLs look rather suspicious; the likely vector would be through systems which automatically clone URLs not visible to the user, such as Git submodules, or package systems built around Git. The problem has been patched in the versions published on April 14th, 2020, going back to v2.17.x. Anyone wishing to backport the change further can do so by applying commit 9a6bbee (the full release includes extra checks for git fsck, but that commit is sufficient to protect clients against the vulnerability). The patched versions are: 2.17.4, 2.18.3, 2.19.4, 2.20.3, 2.21.2, 2.22.3, 2.23.2, 2.24.2, 2.25.3, 2.26.1. CVE-2020-5260 openSUSE Leap 15.1:git-2.16.4-lp151.4.6.1 openSUSE Leap 15.1:git-arch-2.16.4-lp151.4.6.1 openSUSE Leap 15.1:git-core-2.16.4-lp151.4.6.1 openSUSE Leap 15.1:git-credential-gnome-keyring-2.16.4-lp151.4.6.1 openSUSE Leap 15.1:git-credential-libsecret-2.16.4-lp151.4.6.1 openSUSE Leap 15.1:git-cvs-2.16.4-lp151.4.6.1 openSUSE Leap 15.1:git-daemon-2.16.4-lp151.4.6.1 openSUSE Leap 15.1:git-doc-2.16.4-lp151.4.6.1 openSUSE Leap 15.1:git-email-2.16.4-lp151.4.6.1 openSUSE Leap 15.1:git-gui-2.16.4-lp151.4.6.1 openSUSE Leap 15.1:git-p4-2.16.4-lp151.4.6.1 openSUSE Leap 15.1:git-svn-2.16.4-lp151.4.6.1 openSUSE Leap 15.1:git-web-2.16.4-lp151.4.6.1 openSUSE Leap 15.1:gitk-2.16.4-lp151.4.6.1 important 5 AV:N/AC:L/Au:N/C:P/I:N/A:N To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch". https://lists.opensuse.org/archives/list/security-announce@lists.opensuse.org/thread/FTDYLTR4TUBTNP4EFF5L2ZOAKYAB4Z2U/ https://www.suse.com/security/cve/CVE-2020-5260.html CVE-2020-5260 https://bugzilla.suse.com/1168930 SUSE Bug 1168930 https://bugzilla.suse.com/1169936 SUSE Bug 1169936 https://bugzilla.suse.com/1170741 SUSE Bug 1170741