CVE Vulnerability

CVE-2021-29468

Cygwin Git is a patch set for the git command line tool for the cygwin environment. A specially crafted repository that contains symbolic links as well as files with backslash characters in the file name may cause just-checked out code to be executed while checking out a repository using Git on Cygwin. The problem will be patched in the Cygwin Git v2.31.1-2 release. At time of writing, the vulnerability is present in the upstream Git source code; any Cygwin user who compiles Git for themselves from upstream sources should manually apply a patch to mitigate the vulnerability. As mitigation users should not clone or pull from repositories from untrusted sources. CVE-2019-1354 was an equivalent vulnerability in Git for Visual Studio.

6.8 /10

CVSS v2.0 :

V3 Legend

Vector :

Exploitability : 8.6 / Impact : 6.4

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

Scope

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/me-and/Cygwin-Git/blob/main/check-backslash-safety.patch Patch Third Party Advisory
https://lore.kernel.org/git/CA+kUOa=juEdBMVr_gyTKjz7PkPt2DZHkXQyzcQmAWCsEHC_ssw@mail.gmail.com/T/#u Mailing List Third Party Advisory
https://cygwin.com/pipermail/cygwin-announce/2021-April/010018.html Mailing List Patch
https://github.com/me-and/Cygwin-Git/security/advisories/GHSA-rmp3-wq55-f557 Patch Third Party Advisory
Configurations

Configuration 1

cpe:2.3:a:cygwin:git:*:*:*:*:*:*:*:*
Information

Published : 2021-04-29 09:15

Updated : 2021-05-11 04:17

NVD link : CVE-2021-29468

Mitre link : CVE-2021-29468

Products Affected
No products.
CWE
CWE-20