Debian Security Advisory

DLA-3145-1 git -- LTS security update

Date Reported:
11 Oct 2022
Affected Packages:
Security database references:
In the Debian bugtracking system: Bug 985120.
In Mitre's CVE dictionary: CVE-2021-21300, CVE-2021-40330.
More information:

Several security vulnerabilities have been discovered in Git, a fast, scalable, distributed revision control system, which may affect multi-user systems.

  • CVE-2021-21300

    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).

  • CVE-2021-40330

    git_connect_git in connect.c allows a repository path to contain a newline character, which may result in unexpected cross-protocol requests, as demonstrated by the git://localhost:1234/dadaGET/HTTP/1.1 substring.

    For Debian 10 buster, these problems have been fixed in version 1:2.20.1-2+deb10u4.

    We recommend that you upgrade your git packages.

    For the detailed security status of git please refer to its security tracker page at:

    Further information about Debian LTS security advisories, how to apply these updates to your system and frequently asked questions can be found at: