CVE-2024-32020: Git is a revision control system. Prior to versions 2.45.1, 2.44.1, 2.43.4, 2.42.2, 2.41.1, 2.40.2, and 2.39.4, local clones may end up hardlinking files into…

PriorityP412low3.3CVSS 3.1

AVLACLPRNUIRSUCNILAN

EPSS

0.52%

40.2th percentile

Git is a revision control system. Prior to versions 2.45.1, 2.44.1, 2.43.4, 2.42.2, 2.41.1, 2.40.2, and 2.39.4, local clones may end up hardlinking files into the target repository's object database when source and target repository reside on the same disk. If the source repository is owned by a different user, then those hardlinked files may be rewritten at any point in time by the untrusted user. Cloning local repositories will cause Git to either copy or hardlink files of the source repository into the target repository. This significantly speeds up such local clones compared to doing a "proper" clone and saves both disk space and compute time. When cloning a repository located on the same disk that is owned by a different user than the current user we also end up creating such hardlinks. These files will continue to be owned and controlled by the potentially-untrusted user and can be rewritten by them at will in the future. The problem has been patched in versions 2.45.1, 2.44.1, 2.43.4, 2.42.2, 2.41.1, 2.40.2, and 2.39.4.

Affected

32 ranges· showing 25

Vendor	Product	Version range	Fixed in
debian	git	< git 1:2.39.5-0+deb12u1 (bookworm)	git 1:2.39.5-0+deb12u1 (bookworm)
fedoraproject	fedora	—	—
git-scm	git	< 2.39.4	2.39.4
git-scm	git	—	—
git-scm	git	—	—
git-scm	git	—	—
git-scm	git	>= 2.40.0 < 2.40.2	2.40.2
git-scm	git	>= 2.42.0 < 2.42.2	2.42.2
git-scm	git	>= 2.43.0 < 2.43.4	2.43.4
git	git	< 2.39.4	2.39.4
git	git	—	—
git	git	—	—
git	git	—	—
git	git	—	—
git	git	—	—
git	git	—	—
git	git	>= 0 < 1:2.39.5-0+deb12u1	1:2.39.5-0+deb12u1
git	git	>= 0 < 1:2.45.1-1	1:2.45.1-1
git	git	>= 0 < 1:2.45.1-1	1:2.45.1-1
git	git	>= 0 < 1:2.25.1-1ubuntu3.12	1:2.25.1-1ubuntu3.12
git	git	>= 0 < 1:2.34.1-1ubuntu1.11	1:2.34.1-1ubuntu1.11
git	git	>= 0 < 1:2.43.0-1ubuntu7.1	1:2.43.0-1ubuntu7.1
git	git	>= 0 < 1:2.7.4-0ubuntu1.10+esm8	1:2.7.4-0ubuntu1.10+esm8
git	git	>= 0 < 1:2.17.1-1ubuntu0.18+esm1	1:2.17.1-1ubuntu0.18+esm1
msrc	azl3_git_2.42.0-2_on_azure_linux_3.0	—	—

CVSS provenance

nvdv3.13.3LOWCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N

osv9.0CRITICAL

vendor_ubuntu9.0CRITICAL

vendor_debian3.9LOW

vendor_msrc3.9LOW

vendor_redhat3.9LOW

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