Security update for libgit2 SUSE Patch security@suse.de SUSE Security Team SUSE-SU-2023:1570-1 Final 1 1 2023-03-24T12:11:55Z current 2023-03-24T12:11:55Z 2023-03-24T12:11:55Z cve-database/bin/generate-cvrf.pl 2017-02-24T01:00:00Z Security update for libgit2 This update for libgit2 fixes the following issues: - CVE-2023-22742: Fixed SSH keys verification failure (bsc#1207364). The CVRF data is provided by SUSE under the Creative Commons License 4.0 with Attribution (CC-BY-4.0). SUSE-2023-1570,openSUSE-SLE-15.4-2023-1570 Copyright SUSE LLC under the Creative Commons License 4.0 with Attribution (CC-BY-4.0) https://www.suse.com/support/update/announcement/2023/suse-su-20231570-1/ Link for SUSE-SU-2023:1570-1 https://lists.suse.com/pipermail/sle-security-updates/2023-March/014158.html E-Mail link for SUSE-SU-2023:1570-1 https://www.suse.com/support/security/rating/ SUSE Security Ratings https://bugzilla.suse.com/1207364 SUSE Bug 1207364 https://www.suse.com/security/cve/CVE-2023-22742/ SUSE CVE CVE-2023-22742 page openSUSE Leap 15.4 libgit2-26-0.26.8-150000.3.18.1 libgit2-26-32bit-0.26.8-150000.3.18.1 libgit2-26-64bit-0.26.8-150000.3.18.1 libgit2-devel-0.26.8-150000.3.18.1 libgit2-26-0.26.8-150000.3.18.1 as a component of openSUSE Leap 15.4 libgit2-26-32bit-0.26.8-150000.3.18.1 as a component of openSUSE Leap 15.4 libgit2 is a cross-platform, linkable library implementation of Git. When using an SSH remote with the optional libssh2 backend, libgit2 does not perform certificate checking by default. Prior versions of libgit2 require the caller to set the `certificate_check` field of libgit2's `git_remote_callbacks` structure - if a certificate check callback is not set, libgit2 does not perform any certificate checking. This means that by default - without configuring a certificate check callback, clients will not perform validation on the server SSH keys and may be subject to a man-in-the-middle attack. Users are encouraged to upgrade to v1.4.5 or v1.5.1. Users unable to upgrade should ensure that all relevant certificates are manually checked. CVE-2023-22742 openSUSE Leap 15.4:libgit2-26-0.26.8-150000.3.18.1 openSUSE Leap 15.4:libgit2-26-32bit-0.26.8-150000.3.18.1 moderate To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch". https://www.suse.com/support/update/announcement/2023/suse-su-20231570-1/ https://www.suse.com/security/cve/CVE-2023-22742.html CVE-2023-22742 https://bugzilla.suse.com/1207364 SUSE Bug 1207364