| Name | CVE-2019-19604 |
| Description | Arbitrary command execution is possible in Git before 2.20.2, 2.21.x before 2.21.1, 2.22.x before 2.22.2, 2.23.x before 2.23.1, and 2.24.x before 2.24.1 because a "git submodule update" operation can run commands found in the .gitmodules file of a malicious repository. |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
Vulnerable and fixed packages
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|
| git (PTS) | jessie, jessie (lts) | 1:2.1.4-2.1+deb8u14 | fixed |
| stretch (security) | 1:2.11.0-3+deb9u7 | fixed |
| stretch (lts), stretch | 1:2.11.0-3+deb9u11 | fixed |
| buster (security), buster, buster (lts) | 1:2.20.1-2+deb10u9 | fixed |
| bullseye | 1:2.30.2-1+deb11u2 | fixed |
| bullseye (security) | 1:2.30.2-1+deb11u3 | fixed |
| bookworm (security), bookworm | 1:2.39.5-0+deb12u1 | fixed |
| trixie | 1:2.45.2-1 | fixed |
| sid | 1:2.45.2-1.2 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|
| git | source | wheezy | (not affected) | | | |
| git | source | jessie | (not affected) | | | |
| git | source | stretch | (not affected) | | | |
| git | source | buster | 1:2.20.1-2+deb10u1 | | | |
| git | source | (unstable) | 1:2.24.0-2 | | | |
Notes
[stretch] - git <not-affected> (Vulnerable code introduced in v2.20.0-rc0)
[jessie] - git <not-affected> (Vulnerable code introduced in v2.20.0-rc0)
https://git.kernel.org/pub/scm/git/git.git/commit/?id=e904deb89d9a9669a76a426182506a084d3f6308
https://git.kernel.org/pub/scm/git/git.git/commit/?id=bb92255ebe6bccd76227e023d6d0bc997e318ad0
https://git.kernel.org/pub/scm/git/git.git/commit/?id=c1547450748fcbac21675f2681506d2d80351a19
Upstream did backport fixes for CVE-2019-19604 to older versions as the introducing
version for sake of robustness/hardening. In particular, the server-side protection
provided by the fsck is useful for protecting unpatched clients that are affected
by the bug.
https://gitlab.com/gitlab-com/gl-security/disclosures/blob/master/003_git_submodule/advisory.md
https://www.openwall.com/lists/oss-security/2019/12/13/1
[wheezy] - git <not-affected> (Vulnerable code introduced in v2.20.0-rc0)