Vulnerability Description
Open Container Initiative umoci before 0.4.7 allows attackers to overwrite arbitrary host paths via a crafted image that causes symlink traversal when "umoci unpack" or "umoci raw unpack" is used.
CVSS Score
5.5
MEDIUM
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linuxfoundation | Umoci | < 0.4.7 |
| Sylabs | Singularity | < 3.7.3 |
Related Weaknesses (CWE)
References
- http://www.openwall.com/lists/oss-security/2021/04/06/2Mailing ListPatchThird Party Advisory
- https://github.com/opencontainers/umoci/commit/d9efc31daf2206f7d3fdb839863cf7a57PatchThird Party Advisory
- https://github.com/opencontainers/umoci/security/advisories/GHSA-9m95-8hx6-7p9vThird Party Advisory
- http://www.openwall.com/lists/oss-security/2021/04/06/2Mailing ListPatchThird Party Advisory
- https://github.com/opencontainers/umoci/commit/d9efc31daf2206f7d3fdb839863cf7a57PatchThird Party Advisory
- https://github.com/opencontainers/umoci/security/advisories/GHSA-9m95-8hx6-7p9vThird Party Advisory
FAQ
What is CVE-2021-29136?
CVE-2021-29136 is a vulnerability with a CVSS score of 5.5 (MEDIUM). Open Container Initiative umoci before 0.4.7 allows attackers to overwrite arbitrary host paths via a crafted image that causes symlink traversal when "umoci unpack" or "umoci raw unpack" is used.
How severe is CVE-2021-29136?
CVE-2021-29136 has been rated MEDIUM with a CVSS base score of 5.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2021-29136?
Check the references section above for vendor advisories and patch information. Affected products include: Linuxfoundation Umoci, Sylabs Singularity.