CVE-2024-32020

May 14, 2024, 7:17 p.m.

CVSS Score

3.9 / 10

Product(s) Impacted

Git

  • 2.45.1
  • 2.44.1
  • 2.43.4
  • 2.42.2
  • 2.41.1
  • 2.40.2
  • 2.39.4

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.

Weaknesses

Date

Published: May 14, 2024, 7:15 p.m.

Last Modified: May 14, 2024, 7:17 p.m.

Status : Awaiting Analysis

CVE has been marked for Analysis. Normally once in this state the CVE will be analyzed by NVD staff within 24 hours.

More info

Source

security-advisories@github.com

CVSS Data

Attack Vector

LOCAL

Attack Complexity

HIGH

Privileges Required

LOW

Scope

CHANGED

Confidentiality Impact

NONE

Integrity Impact

LOW

Availability Impact

LOW

Base Score
3.9
Exploitability Score
Impact Score
Base Severity
LOW
CVSS Vector String

The CVSS vector string provides an in-depth view of the vulnerability metrics.

View Vector String

CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:C/C:N/I:L/A:L

References