CVE Vulnerability

CVE-2022-39260

Git is an open source, scalable, distributed revision control system. `git shell` is a restricted login shell that can be used to implement Git's push/pull functionality via SSH. In versions prior to 2.30.6, 2.31.5, 2.32.4, 2.33.5, 2.34.5, 2.35.5, 2.36.3, and 2.37.4, the function that splits the command arguments into an array improperly uses an `int` to represent the number of entries in the array, allowing a malicious actor to intentionally overflow the return value, leading to arbitrary heap writes. Because the resulting array is then passed to `execv()`, it is possible to leverage this attack to gain remote code execution on a victim machine. Note that a victim must first allow access to `git shell` as a login shell in order to be vulnerable to this attack. This problem is patched in versions 2.30.6, 2.31.5, 2.32.4, 2.33.5, 2.34.5, 2.35.5, 2.36.3, and 2.37.4 and users are advised to upgrade to the latest version. Disabling `git shell` access via remote logins is a viable short-term workaround.

8.8 /10

CVSS v3.0 : HIGH

V3 Legend

Vector :

Exploitability : 2.8 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References
Link Resource
https://github.com/git/git/security/advisories/GHSA-rjr6-wcq6-83p6 Mitigation Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/UKFHE4KVD7EKS5J3KTDFVBEKU3CLXGVV/ Mailing List
https://support.apple.com/kb/HT213496 Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/OHNO2FB55CPX47BAXMBWUBGWHO6N6ZZH/ Mailing List
http://seclists.org/fulldisclosure/2022/Nov/1 Mailing List Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/C7B6JPKX5CGGLAHXJVQMIZNNEEB72FHD/ Mailing List
https://lists.debian.org/debian-lts-announce/2022/12/msg00025.html Mailing List Third Party Advisory
Configurations

Configuration 1

cpe:2.3:a:git-scm:git:2.38.0:*:*:*:*:*:*:*
cpe:2.3:a:git-scm:git:*:*:*:*:*:*:*:*
cpe:2.3:a:git-scm:git:*:*:*:*:*:*:*:*
cpe:2.3:a:git-scm:git:*:*:*:*:*:*:*:*
cpe:2.3:a:git-scm:git:*:*:*:*:*:*:*:*
cpe:2.3:a:git-scm:git:*:*:*:*:*:*:*:*
cpe:2.3:a:git-scm:git:*:*:*:*:*:*:*:*
cpe:2.3:a:git-scm:git:*:*:*:*:*:*:*:*
cpe:2.3:a:git-scm:git:*:*:*:*:*:*:*:*
cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:*
cpe:2.3:o:fedoraproject:fedora:36:*:*:*:*:*:*:*
cpe:2.3:o:fedoraproject:fedora:37:*:*:*:*:*:*:*
cpe:2.3:a:apple:xcode:*:*:*:*:*:*:*:*
cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*
Information

Published : 2022-10-19 12:15

Updated : 2023-02-16 02:41

NVD link : CVE-2022-39260

Mitre link : CVE-2022-39260

Products Affected
No products.
CWE
CWE-122

CWE-787