Vulnerability in Cilium
CVE-2023-30851
Cilium is a networking, observability, and security solution with an eBPF-based dataplane. This issue only impacts users who have a HTTP policy that applies to multiple `toEndpoints` AND have an allow-all rule in place that affects only one of those endpoints. In such cases, a wildcard rule will be appended to the set of HTTP rules, which could cause bypass of HTTP policies. This issue has been patched in Cilium 1.11.16, 1.12.9, and 1.13.2.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 2.6 (Low). Vector: CVSS:3.1/AV:A/AC:H/PR:H/UI:N/S:C/C:L/I:N/A:N.
EPSS exploit prediction
EPSS: 0.007 (49.4th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 49th percentile — 49.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.007 · newest: 0.007 · change: 0.000
Affected products
- Cilium — versions < 1.11.16, >= 1.12.0, < 1.12.9, >= 1.13.0, < 1.13.2
Weakness classification (CWE)
References
- github.com/cilium/cilium/security/advisories/GHSA-2h44-x2wx-49f4 (Vendor Advisory)
- github.com/cilium/cilium/releases/tag/v1.11.16 (Release Notes)
- github.com/cilium/cilium/releases/tag/v1.12.9 (Release Notes)
- github.com/cilium/cilium/releases/tag/v1.13.2 (Release Notes)
Frequently asked questions
- What is CVE-2023-30851?
- CVE-2023-30851 is a low-severity vulnerability in Cilium, classified under Protection Mechanism Failure. CVSS score: 2.6/10. Published 2023-05-25.
- How severe is CVE-2023-30851?
- Low severity. CVSS v3 base score is 2.6 out of 10.