Improper input validation in Linuxfoundation Umoci
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.
Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N.
EPSS exploit prediction
EPSS: 0.003 (25.3th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 25th percentile — 25.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: 0.000
Affected products
Weakness classification (CWE)
References
- www.openwall.com/lists/oss-security/2021/04/06/2 (Patch, Mailing List, Third Party Advisory)
- github.com/opencontainers/umoci/security/advisories/GHSA-9m95-8hx6-7p9v (Third Party Advisory)
- github.com/opencontainers/umoci/commit/d9efc31daf2206f7d3fdb839863cf7a576a2eb57 (Patch, Third Party Advisory)
Frequently asked questions
- What is CVE-2021-29136?
- CVE-2021-29136 is a medium-severity vulnerability in Linuxfoundation Umoci, classified under Improper Input Validation. CVSS score: 5.5/10. Published 2021-04-06.
- How severe is CVE-2021-29136?
- Medium severity. CVSS v3 base score is 5.5 out of 10.