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CVE-2024-32002

Publication date 14 May 2024

Last updated 19 September 2024

Ubuntu priority

Medium

Why this priority?

Cvss 3 Severity Score

9.0 · Critical

Score breakdown

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, repositories with submodules can be crafted in a way that exploits a bug in Git whereby it can be fooled into writing files not into the submodule's worktree but into a `.git/` directory. This allows writing a hook that will be executed while the clone operation is still running, giving the user no opportunity to inspect the code that is being executed. 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. If symbolic link support is disabled in Git (e.g. via `git config --global core.symlinks false`), the described attack won't work. As always, it is best to avoid cloning repositories from untrusted sources.

Read the notes from the security team

Status

Package Ubuntu Release Status
git 24.04 LTS noble
Fixed 1:2.43.0-1ubuntu7.1
23.10 mantic
Fixed 1:2.40.1-1ubuntu1.1
22.04 LTS jammy
Fixed 1:2.34.1-1ubuntu1.11
20.04 LTS focal
Fixed 1:2.25.1-1ubuntu3.13
18.04 LTS bionic
16.04 LTS xenial
Not affected

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Notes

leosilva

One can avoid it if symbolic link support is disable "config --global core.symlinks false" This issue exploits case insensitivity. As in Linux Ext4 has an option to turn on case insensitivity Linux could be a target. This issue was not reproducible, but fixed in all releases but Focal, Bionic and xenial, where source is not backportable in a first glance. Pending further investigation.

Severity score breakdown

Parameter Value
Base score 9.0 · Critical
Attack vector Network
Attack complexity High
Privileges required None
User interaction None
Scope Changed
Confidentiality High
Integrity impact High
Availability impact High
Vector CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H