CVE-2021-29136: Input Validation
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.
Affected Software
Remediation
Patch Available
Event History
Frequently Asked Questions
What is the vulnerability ID of this vulnerability?
The vulnerability ID of this vulnerability is CVE-2021-29136.
What is the severity of CVE-2021-29136?
The severity of CVE-2021-29136 is medium with a CVSS score of 5.5.
Which software is affected by CVE-2021-29136?
The Linuxfoundation Umoci versions up to and exclusive of 0.4.7 and Sylabs Singularity versions up to and exclusive of 3.7.3 are affected by CVE-2021-29136.
How can an attacker exploit CVE-2021-29136?
An attacker can exploit CVE-2021-29136 by using a crafted image that causes symlink traversal when "umoci unpack" or "umoci raw unpack" is used, allowing them to overwrite arbitrary host paths.
Are there any references for CVE-2021-29136?
Yes, you can find references for CVE-2021-29136 at the following links: [Link 1](http://www.openwall.com/lists/oss-security/2021/04/06/2), [Link 2](https://github.com/opencontainers/umoci/commit/d9efc31daf2206f7d3fdb839863cf7a576a2eb57), [Link 3](https://github.com/opencontainers/umoci/security/advisories/GHSA-9m95-8hx6-7p9v).