Information disclosure in Kubernetes Cri-O
CVE-2022-4318
A vulnerability was found in cri-o. This issue allows the addition of arbitrary lines into /etc/passwd by use of a specially crafted environment variable.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.003 (21.6th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 22nd percentile — 21.6% 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
- Kubernetes Cri-O
- Fedoraproject Extra Packages For Enterprise Linux — versions 8.0
- Fedoraproject Fedora — versions 36, 37
- Red Hat Enterprise Linux 9
- Red Hat Openshift Container Platform 4.11 — versions 0:1.24.4-10.rhaos4.11.git1ed5ac5.el8
- Red Hat Openshift Container Platform 4.12 — versions 0:1.25.2-9.rhaos4.12.git0a083f9.el9
- Red Hat Enterprise Linux — versions 8.0, 9.0
- Red Hat Openshift Container Platform For Arm64 — versions 4.12, 4.11
- Red Hat Openshift Container Platform For Linuxone — versions 4.12, 4.11
- Red Hat Openshift Container Platform For Power — versions 4.12, 4.11
Weakness classification (CWE)
Public proof-of-concept exploits
References
- access.redhat.com/errata/RHSA-2023:1033 (vendor-advisory, Third Party Advisory)
- access.redhat.com/errata/RHSA-2023:1503 (vendor-advisory, Third Party Advisory)
- access.redhat.com/security/cve/CVE-2022-4318 (Third Party Advisory, vdb-entry)
- bugzilla.redhat.com/show_bug.cgi (issue-tracking, Third Party Advisory, Issue Tracking)
Frequently asked questions
- What is CVE-2022-4318?
- CVE-2022-4318 is a high-severity vulnerability in Kubernetes Cri-O, classified under Insertion of Sensitive Information into Externally-Accessible File or Directory. CVSS score: 7.8/10. Published 2023-09-25.
- How severe is CVE-2022-4318?
- High severity. CVSS v3 base score is 7.8 out of 10.
- Is CVE-2022-4318 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.