========================================================================== Ubuntu Security Notice USN-7626-3 July 10, 2025 git regression ========================================================================== A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 22.04 LTS - Ubuntu 20.04 LTS - Ubuntu 18.04 LTS - Ubuntu 16.04 LTS Summary: USN-7626-1 introduced a regression in Git Software Description: - git: fast, scalable, distributed revision control system Details: USN-7626-1 fixed vulnerabilities in Git. The updates for CVE-2025-27613 and CVE-2025-46835 caused Gitk and Git GUI to not work properly on Ubuntu 16.04 LTS, Ubuntu 18.04 LTS, Ubuntu 20.04 LTS, and Ubuntu 22.04 LTS, and were disabled in USN-7626-2. The problematic updates for the aforementioned CVEs have now been corrected and reinstated in this update. We apologize for the inconvenience. Original advisory details: Avi Halachmi discovered that Git incorrectly managed file modification constraints with Gitk. An attacker could possibly use this issue to create or write to arbitrary files on the system. (CVE-2025-27613) Avi Halachmi discovered that Git incorrectly handled arguments when invoking the Gitk utility. If a user were tricked into cloning a malicious Git repository, an attacker could possibly use this issue to run arbitrary commands. This issue only affected Ubuntu 24.04 LTS, Ubuntu 24.10, and Ubuntu 25.04. (CVE-2025-27614) Johannes Sixt discovered that Git incorrectly managed file modification constraints with Git GUI. If a user were tricked into editing a file in a malicious Git repository, an attacker could possibly use this issue to create or write to arbitrary files on the system. (CVE-2025-46835) David Leadbeater discovered that Git incorrectly stripped CRLF characters when editing configuration files. An attacker could possibly use this issue to execute arbitrary code. (CVE-2025-48384) David Leadbeater discovered that Git incorrectly handled verification when fetching remote Git repositories. An attacker could possibly use this issue to perform protocol injection, leading to arbitrary code execution. This issue only affected Ubuntu 24.04 LTS, Ubuntu 24.10, and Ubuntu 25.04. (CVE-2025-48385) David Leadbeater discovered that Git incorrectly handled memory with the wincred credential helper. An attacker could possibly use this issue to cause a denial of service. (CVE-2025-48386) Update instructions: The problem can be corrected by updating your system to the following package versions: Ubuntu 22.04 LTS git-gui 1:2.34.1-1ubuntu1.15 gitk 1:2.34.1-1ubuntu1.15 Ubuntu 20.04 LTS git-gui 1:2.25.1-1ubuntu3.14+esm3 Available with Ubuntu Pro gitk 1:2.25.1-1ubuntu3.14+esm3 Available with Ubuntu Pro Ubuntu 18.04 LTS git-gui 1:2.17.1-1ubuntu0.18+esm4 Available with Ubuntu Pro gitk 1:2.17.1-1ubuntu0.18+esm4 Available with Ubuntu Pro Ubuntu 16.04 LTS git-gui 1:2.7.4-0ubuntu1.10+esm11 Available with Ubuntu Pro gitk 1:2.7.4-0ubuntu1.10+esm11 Available with Ubuntu Pro In general, a standard system update will make all the necessary changes. References: https://ubuntu.com/security/notices/USN-7626-3 https://ubuntu.com/security/notices/USN-7626-2 https://ubuntu.com/security/notices/USN-7626-3 https://launchpad.net/bugs/2116251 Package Information: https://launchpad.net/ubuntu/+source/git/1:2.34.1-1ubuntu1.15