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OpenAdvisories
Low · 3.9 CVE-2024-32020 EUVD-2024-29858

Cloning local Git repository by untrusted user allows the untrusted user to modify objects in the cloned repository at will

Published May 14, 2024 · Updated Feb 13, 2025 · Assigned by GitHub_M

Vendor: git Product: git Package: git Package: git Package: git Package: git Package: git Ecosystem: Alpine Ecosystem: Azure Linux Ecosystem: Debian Ecosystem: Ubuntu Ecosystem: Wolfi

Description

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 products

VendorProductAffectedFixed
git git = 2.45.0, = 2.44.0, >= 2.43.0, < 2.43.4, >= 2.42.0, < 2.42.2, = 2.41.0, >= 2.40.0, < 2.40.2, < 2.39.4 —

Fixed in Linux distributions

Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.

Debian

Security tracker ↗
ReleasePackageFixed inAdvisory
Debian 14 git 1:2.45.1-1 —
Debian 13 git 1:2.45.1-1 —
Debian 12 git 1:2.39.5-0+deb12u1 DSA-5769-1

Ubuntu

Security tracker ↗
ReleasePackageFixed inAdvisory
Ubuntu 24.04 LTS git 1:2.43.0-1ubuntu7.1 USN-6793-1
Ubuntu 22.04 LTS git 1:2.34.1-1ubuntu1.11 USN-6793-1
Ubuntu 20.04 LTS git 1:2.25.1-1ubuntu3.12 USN-6793-1
Show 2 more (older releases, extended support, other products)
ReleasePackageFixed inAdvisory
Ubuntu Pro 18.04 LTS git 1:2.17.1-1ubuntu0.18+esm1 USN-7023-1
Ubuntu Pro 16.04 LTS git 1:2.7.4-0ubuntu1.10+esm8 USN-7023-1

Red Hat

Security tracker ↗
ReleasePackageFixed inAdvisory
RHEL 9 git +14 2.43.5-1.el9_4 RHSA-2024:4083
RHEL 8 git +14 2.43.5-1.el8_10 RHSA-2024:4084
Show 1 more (older releases, extended support, other products)
ReleasePackageFixed inAdvisory
RHEL 9.2 EUS git +14 2.39.5-1.el9_2 RHSA-2024:4368

AlmaLinux

Errata ↗
ReleasePackageFixed inAdvisory
AlmaLinux 9 git +14 2.43.5-1.el9_4 ALSA-2024:4083
AlmaLinux 8 git +14 2.43.5-1.el8_10 ALSA-2024:4084

Rocky Linux

Errata ↗
ReleasePackageFixed inAdvisory
Rocky Linux 9 git 2.43.5-1.el9_4 RLSA-2024:4083
Rocky Linux 8 git 2.43.5-1.el8_10 RLSA-2024:4084

SUSE

Security tracker ↗
ReleasePackageFixed inAdvisory
SLES 15 SP6 git 2.43.0-150600.3.3.1 SUSE-SU-2024:2277-1
SLES 15 SP5 git 2.35.3-150300.10.39.1 SUSE-SU-2024:1807-1
SLES 15 SP4 git 2.35.3-150300.10.39.1 SUSE-SU-2024:1807-1
SLES 15 SP3 git 2.35.3-150300.10.39.1 SUSE-SU-2024:1807-1
SLES 15 SP2 git 2.26.2-150000.56.1 SUSE-SU-2024:1854-1
Show 12 more (older releases, extended support, other products)
ReleasePackageFixed inAdvisory
SLES 12 SP5 git 2.26.2-27.78.1 SUSE-SU-2025:0197-1
SLES for SAP 15 SP4 git 2.35.3-150300.10.39.1 SUSE-SU-2024:1807-1
SLES for SAP 15 SP3 git 2.35.3-150300.10.39.1 SUSE-SU-2024:1807-1
SLES for SAP 15 SP2 git 2.26.2-150000.56.1 SUSE-SU-2024:1854-1
SLE Micro 6.0 git 2.45.1-1.1 SUSE-SU-2025:20049-1
SLE Micro 5.5 git 2.35.3-150300.10.39.1 SUSE-SU-2024:1807-2, SUSE-SU-2024:1807-1
SLE HPC 15 SP4 git 2.35.3-150300.10.39.1 SUSE-SU-2024:1807-1
SLE HPC 15 SP3 git 2.35.3-150300.10.39.1 SUSE-SU-2024:1807-1
SLE HPC 15 SP2 git 2.26.2-150000.56.1 SUSE-SU-2024:1854-1
SUSE Manager Server 4.3 git 2.35.3-150300.10.39.1 SUSE-SU-2024:1807-1
SUSE Manager Proxy 4.3 git 2.35.3-150300.10.39.1 SUSE-SU-2024:1807-1
SUSE Enterprise Storage 7.1 git 2.35.3-150300.10.39.1 SUSE-SU-2024:1807-1

openSUSE

Security tracker ↗
ReleasePackageFixed inAdvisory
openSUSE Tumbleweed git 2.45.1-1.1 openSUSE-SU-2024:13968-1
openSUSE Leap 15.6 git 2.43.0-150600.3.3.1 SUSE-SU-2024:2277-1
openSUSE Leap 15.5 git 2.35.3-150300.10.39.1 SUSE-SU-2024:1807-1

Alpine

Security tracker ↗
ReleasePackageFixed inAdvisory
Alpine v3.24 git 2.45.1-r0 —
Alpine v3.23 git 2.45.1-r0 —
Alpine v3.22 git 2.45.1-r0 —
Alpine v3.21 git 2.45.1-r0 —
Alpine v3.20 git 2.45.1-r0 —
Show 3 more (older releases, extended support, other products)
ReleasePackageFixed inAdvisory
Alpine v3.19 git 2.43.4-r0 —
Alpine v3.18 git 2.40.3-r0 —
Alpine v3.17 git 2.39.5-r0 —

Amazon Linux

ReleasePackageFixed inAdvisory
Amazon Linux 2023 git +16 2.40.1-1.amzn2023.0.3 ALAS2023-2024-623
Amazon Linux 2 git +16 2.40.1-1.amzn2.0.3 ALAS2-2024-2548

Azure Linux

ReleasePackageFixed inAdvisory
Azure Linux 3 git 2.45.2-1 —
Azure Linux 2 (CBL-Mariner) git 2.39.4-1 —

Oracle Linux

ReleasePackageFixed inAdvisory
Oracle Linux 9 git +14 2.43.5-1.el9_4 ELSA-2024-4083
Oracle Linux 8 git +14 2.43.5-1.el8_10 ELSA-2024-4084

Wolfi

ReleasePackageFixed inAdvisory
Wolfi rolling git 2.45.1-r0 —

Advisories 23

References