CVEvulnerability
CVE-2021-29468
8.8 HIGH
Official page ↗
- Status
- Modified
- Published
- 2021-04-29
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 8.8 HIGH — CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- CVSS 3.1 ([email protected])
- 8.8 HIGH — CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- CVSS 2.0 ([email protected])
- 6.8 MEDIUM — AV:N/AC:M/Au:N/C:P/I:P/A:P
- Weaknesses
- CWE-20
Description
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.
Affected configurations
• cygwin git (<= 2.31.1-1)
Related
Weakness · CWE (1)
- CWE-20 Improper Input Validation weakness
References
- https://cygwin.com/pipermail/cygwin-announce/2021-April/010018.html Mailing List, Patch, Vendor Advisory
- https://github.com/me-and/Cygwin-Git/blob/main/check-backslash-safety.patch Patch, Third Party Advisory
- https://github.com/me-and/Cygwin-Git/security/advisories/GHSA-rmp3-wq55-f557 Patch, Third Party Advisory
- https://lore.kernel.org/git/CA+kUOa=juEdBMVr_gyTKjz7PkPt2DZHkXQyzcQmAWCsEHC_ssw%40mail.gmail.com/T/#u lore.kernel.org
- https://cygwin.com/pipermail/cygwin-announce/2021-April/010018.html Mailing List, Patch, Vendor Advisory
- https://github.com/me-and/Cygwin-Git/blob/main/check-backslash-safety.patch Patch, Third Party Advisory
- https://github.com/me-and/Cygwin-Git/security/advisories/GHSA-rmp3-wq55-f557 Patch, Third Party Advisory
- https://lore.kernel.org/git/CA+kUOa=juEdBMVr_gyTKjz7PkPt2DZHkXQyzcQmAWCsEHC_ssw%40mail.gmail.com/T/#u lore.kernel.org