Vulnerability in Cilium
CVE-2024-42487
Cilium is a networking, observability, and security solution with an eBPF-based dataplane. In the 1.15 branch prior to 1.15.8 and the 1.16 branch prior to 1.16.1, Gateway API HTTPRoutes and GRPCRoutes do not follow the match precedence specified in the Gateway API specification. In particular, request headers are matched before request methods, when the specification describes that the request methods must be respected before headers are matched. This could result in unexpected behaviour with security This issue is fixed in Cilium v1.15.8 and v1.16.1. There is no workaround for this issue.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 4.0 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:N/A:N.
EPSS exploit prediction
EPSS: 0.005 (42.9th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 43rd percentile — 42.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.005 · newest: 0.005 · change: 0.000
Affected products
- Cilium — versions >= 1.15.0, < 1.15.8, 1.16.0, = 1.16.0
Weakness classification (CWE)
References
- github.com/cilium/cilium/security/advisories/GHSA-qcm3-7879-xcww (Vendor Advisory)
- github.com/cilium/cilium/pull/34109 (Patch, Third Party Advisory)
- github.com/cilium/cilium/commit/a3510fe4a92305822aa1a5e08cb6d6c873c8699a (Patch, Third Party Advisory)
Frequently asked questions
- What is CVE-2024-42487?
- CVE-2024-42487 is a medium-severity vulnerability in Cilium, classified under HTTP Response Splitting. CVSS score: 4.0/10. Published 2024-08-15.
- How severe is CVE-2024-42487?
- Medium severity. CVSS v3 base score is 4.0 out of 10.