Vulnerability in Kubernetes Cri-O
CVE-2022-27652
A flaw was found in cri-o, where containers were incorrectly started with non-empty default permissions. A vulnerability was found in Moby (Docker Engine) where containers started incorrectly with non-empty inheritable Linux process capabilities. This flaw allows an attacker with access to programs with inheritable file capabilities to elevate those capabilities to the permitted set when execve(2) runs.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L.
EPSS exploit prediction
EPSS: 0.002 (15.8th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 16th percentile — 15.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: 0.000
Affected products
- Kubernetes Cri-O
- Mobyproject Moby
- Fedoraproject Fedora — versions 35
- Red Hat Openshift Container Platform — versions 3.11, 4.0
- Cri-O — versions Affects all versions.
Weakness classification (CWE)
Public proof-of-concept exploits
References
- bugzilla.redhat.com/show_bug.cgi (Third Party Advisory, Issue Tracking)
- github.com/cri-o/cri-o/security/advisories/GHSA-4hj2-r2pm-3hc6 (Third Party Advisory, Mitigation)
Frequently asked questions
- What is CVE-2022-27652?
- CVE-2022-27652 is a medium-severity vulnerability in Kubernetes Cri-O, classified under Incorrect Default Permissions. CVSS score: 5.3/10. Published 2022-04-18.
- How severe is CVE-2022-27652?
- Medium severity. CVSS v3 base score is 5.3 out of 10.
- Is CVE-2022-27652 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.