CVE-2021-29136

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.

Published: Apr 6, 2021
Updated: May 9, 2024
CVE: CVE-2021-29136
GHSA: GHSA-9m95-8hx6-7p9v
Severity: Medium
Exploit:

CVSS v3:

Severity: Medium
Score: 5.5
AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N

CVSS v2:

Severity: Low
Score: 2.1
AV:L/AC:L/Au:N/C:N/I:P/A:N

CWEs:

CWE-20

Affected Software
References

Software	From	Fixed in
linuxfoundation / umoci	-	0.4.7
sylabs / singularity	-	3.7.3
github.com/opencontainers/umoci	-	0.4.7

http://www.openwall.com/lists/oss-security/2021/04/06/2
https://github.com/opencontainers/umoci/commit/d9efc31daf2206f7d3fdb839863cf7a576a2eb57
https://github.com/opencontainers/umoci/security/advisories/GHSA-9m95-8hx6-7p9v

Vulnerability Database

CVE-2021-29136

Deep Security Visibility Without the Complexity