Security update for git SUSE Patch security@suse.de SUSE Security Team openSUSE-SU-2021:0405-1 Final 1 1 2021-03-14T14:08:26Z current 2021-03-14T14:08:26Z 2021-03-14T14:08:26Z cve-database/bin/generate-cvrf.pl 2017-02-24T01:00:00Z Security update for git This update for git fixes the following issues: - On case-insensitive filesystems, with support for symbolic links, if Git is configured globally to apply delay-capable clean/smudge filters (such as Git LFS), Git could be fooled into running remote code during a clone. (bsc#1183026, CVE-2021-21300) 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-2021-405 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/33ZBSRS6RUAL5LAGWR6DDONQJXFU6FIT/ E-Mail link for openSUSE-SU-2021:0405-1 https://www.suse.com/support/security/rating/ SUSE Security Ratings https://bugzilla.suse.com/1183026 SUSE Bug 1183026 https://www.suse.com/security/cve/CVE-2021-21300/ SUSE CVE CVE-2021-21300 page openSUSE Leap 15.2 git-2.26.2-lp152.2.6.1 git-arch-2.26.2-lp152.2.6.1 git-core-2.26.2-lp152.2.6.1 git-credential-gnome-keyring-2.26.2-lp152.2.6.1 git-credential-libsecret-2.26.2-lp152.2.6.1 git-cvs-2.26.2-lp152.2.6.1 git-daemon-2.26.2-lp152.2.6.1 git-doc-2.26.2-lp152.2.6.1 git-email-2.26.2-lp152.2.6.1 git-gui-2.26.2-lp152.2.6.1 git-p4-2.26.2-lp152.2.6.1 git-svn-2.26.2-lp152.2.6.1 git-web-2.26.2-lp152.2.6.1 gitk-2.26.2-lp152.2.6.1 git-2.26.2-lp152.2.6.1 as a component of openSUSE Leap 15.2 git-arch-2.26.2-lp152.2.6.1 as a component of openSUSE Leap 15.2 git-core-2.26.2-lp152.2.6.1 as a component of openSUSE Leap 15.2 git-credential-gnome-keyring-2.26.2-lp152.2.6.1 as a component of openSUSE Leap 15.2 git-credential-libsecret-2.26.2-lp152.2.6.1 as a component of openSUSE Leap 15.2 git-cvs-2.26.2-lp152.2.6.1 as a component of openSUSE Leap 15.2 git-daemon-2.26.2-lp152.2.6.1 as a component of openSUSE Leap 15.2 git-doc-2.26.2-lp152.2.6.1 as a component of openSUSE Leap 15.2 git-email-2.26.2-lp152.2.6.1 as a component of openSUSE Leap 15.2 git-gui-2.26.2-lp152.2.6.1 as a component of openSUSE Leap 15.2 git-p4-2.26.2-lp152.2.6.1 as a component of openSUSE Leap 15.2 git-svn-2.26.2-lp152.2.6.1 as a component of openSUSE Leap 15.2 git-web-2.26.2-lp152.2.6.1 as a component of openSUSE Leap 15.2 gitk-2.26.2-lp152.2.6.1 as a component of openSUSE Leap 15.2 Git is an open-source distributed revision control system. In affected versions of Git a specially crafted repository that contains symbolic links as well as files using a clean/smudge filter such as Git LFS, may cause just-checked out script to be executed while cloning onto a case-insensitive file system such as NTFS, HFS+ or APFS (i.e. the default file systems on Windows and macOS). Note that clean/smudge filters have to be configured for that. Git for Windows configures Git LFS by default, and is therefore vulnerable. The problem has been patched in the versions published on Tuesday, March 9th, 2021. As a workaound, if symbolic link support is disabled in Git (e.g. via `git config --global core.symlinks false`), the described attack won't work. Likewise, if no clean/smudge filters such as Git LFS are configured globally (i.e. _before_ cloning), the attack is foiled. As always, it is best to avoid cloning repositories from untrusted sources. The earliest impacted version is 2.14.2. The fix versions are: 2.30.1, 2.29.3, 2.28.1, 2.27.1, 2.26.3, 2.25.5, 2.24.4, 2.23.4, 2.22.5, 2.21.4, 2.20.5, 2.19.6, 2.18.5, 2.17.62.17.6. CVE-2021-21300 openSUSE Leap 15.2:git-2.26.2-lp152.2.6.1 openSUSE Leap 15.2:git-arch-2.26.2-lp152.2.6.1 openSUSE Leap 15.2:git-core-2.26.2-lp152.2.6.1 openSUSE Leap 15.2:git-credential-gnome-keyring-2.26.2-lp152.2.6.1 openSUSE Leap 15.2:git-credential-libsecret-2.26.2-lp152.2.6.1 openSUSE Leap 15.2:git-cvs-2.26.2-lp152.2.6.1 openSUSE Leap 15.2:git-daemon-2.26.2-lp152.2.6.1 openSUSE Leap 15.2:git-doc-2.26.2-lp152.2.6.1 openSUSE Leap 15.2:git-email-2.26.2-lp152.2.6.1 openSUSE Leap 15.2:git-gui-2.26.2-lp152.2.6.1 openSUSE Leap 15.2:git-p4-2.26.2-lp152.2.6.1 openSUSE Leap 15.2:git-svn-2.26.2-lp152.2.6.1 openSUSE Leap 15.2:git-web-2.26.2-lp152.2.6.1 openSUSE Leap 15.2:gitk-2.26.2-lp152.2.6.1 important 5.1 AV:N/AC:H/Au:N/C:P/I:P/A:P 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/33ZBSRS6RUAL5LAGWR6DDONQJXFU6FIT/ https://www.suse.com/security/cve/CVE-2021-21300.html CVE-2021-21300 https://bugzilla.suse.com/1183026 SUSE Bug 1183026