Vulnerability in Cilium
CVE-2024-42488
Cilium is a networking, observability, and security solution with an eBPF-based dataplane. Prior to versions 1.14.14 and 1.15.8, a race condition in the Cilium agent can cause the agent to ignore labels that should be applied to a node. This could in turn cause CiliumClusterwideNetworkPolicies intended for nodes with the ignored label to not apply, leading to policy bypass. This issue has been patched in Cilium v1.14.14 and v1.15.8 As the underlying issue depends on a race condition, users unable to upgrade can restart the Cilium agent on affected nodes until the affected policies are confirmed to be working as expected.
Vulnerability class: Race Condition
EPSS: 0.005 (39.9th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 6.8 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:N/A:N.
Affected products
- Cilium — versions < 1.14.14, >= 1.15.0, < 1.15.8
Weakness classification (CWE)
References
- security-advisories@github.com (x_refsource_CONFIRM, Patch, Third Party Advisory)
- security-advisories@github.com (Patch, Third Party Advisory, x_refsource_MISC)
- security-advisories@github.com (Patch, x_refsource_MISC)
Frequently asked questions
- What is CVE-2024-42488?
- CVE-2024-42488 is a medium-severity vulnerability in Cilium, classified under Concurrent Execution using Shared Resource with Improper Synchronization (Race Condition). CVSS score: 6.8/10. Published 2024-08-15.
- How severe is CVE-2024-42488?
- Medium severity. CVSS v3 base score is 6.8 out of 10.