CVE-2021-29136

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.

Category

5.5
CVSS
Severity: Medium
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.15%
Third-Party Advisory openwall.com Third-Party Advisory github.com Third-Party Advisory github.com
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
http://www.openwall.com/lists/oss-security/2021/04/06/2 patch mailing list third party advisory
https://github.com/opencontainers/umoci/security/advisories/GHSA-9m95-8hx6-7p9v third party advisory
https://github.com/opencontainers/umoci/commit/d9efc31daf2206f7d3fdb839863cf7a576a2eb57 third party advisory patch

Frequently Asked Questions

What is the severity of CVE-2021-29136?
CVE-2021-29136 has been scored as a medium severity vulnerability.
How to fix CVE-2021-29136?
To fix CVE-2021-29136, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2021-29136 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2021-29136 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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