CVE-2023-41040
Description
GitPython is a python library used to interact with Git repositories. In order to resolve some git references, GitPython reads files from the `.git` directory, in some places the name of the file being read is provided by the user, GitPython doesn't check if this file is located outside the `.git` directory. This allows an attacker to make GitPython read any file from the system. This vulnerability is present in https://github.com/gitpython-developers/GitPython/blob/1c8310d7cae144f74a671cbe17e51f63a830adbf/git/refs/symbolic.py#L174-L175. That code joins the base directory with a user given string without checking if the final path is located outside the base directory. This vulnerability cannot be used to read the contents of files but could in theory be used to trigger a denial of service for the program. This issue has not yet been addressed.
Predictions
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
No mitigations published for this CVE yet.
The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.
✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here withsource_tier=community-verified.
OS impact
SUSE Affected 1 release
| Version | Status | Fixed in |
|---|---|---|
| — | Affected | — |
Debian Fixed 5 releases
| Version | Status | Fixed in |
|---|---|---|
| trixie | Fixed | 3.1.36-1 |
| sid | Fixed | 3.1.36-1 |
| forky | Fixed | 3.1.36-1 |
| bullseye | Fixed | 3.1.14-1+deb11u1 |
| bookworm | Fixed | 3.1.30-1+deb12u2 |
References
- https://github.com/gitpython-developers/GitPython/security/advisories/GHSA-cwvm-v4w8-q58c
- https://nvd.nist.gov/vuln/detail/CVE-2023-41040
- https://github.com/gitpython-developers/GitPython/pull/1672
- https://github.com/gitpython-developers/GitPython/commit/74e55ee4544867e1bd976b7df5a45869ee397b0b
- https://github.com/gitpython-developers/GitPython/commit/e98f57b81f792f0f5e18d33ee658ae395f9aa3c4
- https://github.com/gitpython-developers/GitPython
- https://github.com/gitpython-developers/GitPython/blob/1c8310d7cae144f74a671cbe17e51f63a830adbf/git/refs/symbolic.py#L174-L175
- https://github.com/gitpython-developers/GitPython/releases/tag/3.1.37
- https://github.com/pypa/advisory-database/tree/main/vulns/gitpython/PYSEC-2023-165.yaml
- https://lists.debian.org/debian-lts-announce/2023/09/msg00036.html
- https://lists.debian.org/debian-lts-announce/2024/10/msg00030.html
- https://www.suse.com/security/cve/CVE-2023-41040.html
- https://security-tracker.debian.org/tracker/CVE-2023-41040
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.