CVE-2024-42488

Published: Aug 15, 2024Modified: Sep 27, 2024

6.8

Vector

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:N/A:N

Exploitability: 2.2 / Impact: 4.0

Source: NVD

Description

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.

Affected (2)

Products: Cilium: Cilium

1 product

Configuration A

2 vulnerable

Vulnerable Software	Affected Versions
Cilium Cilium	Before 1.14.14
Cilium Cilium	From 1.15.0 to 1.15.8

Related CWEs

Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

The product contains a code sequence that can run concurrently with other code, and the code sequence requires temporary, exclusive access to a shared resource, but a timing window exists in which the shared resource can be modified by another code sequence that is operating concurrently.

References (3)

https://github.com/cilium/cilium/commit/aa44dd148a9be95e07782e4f990e61678ef0abf8

Source: security-advisories@github.com

Patch

https://github.com/cilium/cilium/pull/33511

Source: security-advisories@github.com

PatchThird Party Advisory

https://github.com/cilium/cilium/security/advisories/GHSA-q7w8-72mr-vpgw

Source: security-advisories@github.com

PatchThird Party Advisory

Timeline

No history available yet.