GHSA-24m5-r6hv-ccgp

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    GHSA-24m5-r6hv-ccgp

    Published: 27 Sept 2023Last Modified: 10 Sept 2026

    Summary: Specific Cilium configurations vulnerable to DoS via Kubernetes annotations

    Details: ### Impact In Cilium clusters where Cilium's Layer 7 proxy has been disabled, creating workloads with - `policy.cilium.io/proxy-visibility` annotations (in Cilium >= v1.13) - `io.cilium.proxy-visibility` annotations (in Cilium <= v1.12) causes the Cilium agent to segfault on the node to which the workload is assigned. Existing traffic on the affected node will continue to flow, but the Cilium agent on the node will not able to process changes to workloads running on the node. This will also prevent workloads from being able to start on the affected node. The denial of service will be limited to the node on which the workload is scheduled, however an attacker may be able to schedule workloads on the node of their choosing, which could lead to targeted attacks. ### Patches [Pull request with fix](https://github.com/cilium/cilium/pull/27597) This issue affects: Cilium <= v1.14.1 Cilium <= v1.13.6 Cilium <= v1.12.13 This issue has been resolved in: Cilium v1.14.2 Cilium v1.13.7 Cilium v1.12.14 ### Workarounds Users can avoid this denial of service attack by enabling the Layer 7 proxy. ### For more information If you have any questions or comments about this advisory, please reach out on [Slack](https://docs.cilium.io/en/latest/community/community/#slack). As usual, if you think you found a related vulnerability, we strongly encourage you to report security vulnerabilities to our private security mailing list: [[email protected]](mailto:[email protected]) - first, before disclosing them in any public forums. This is a private mailing list where only members of the Cilium internal security team are subscribed to, and is treated as top priority.

    References: https://github.com/cilium/cilium/security/advisories/GHSA-24m5-r6hv-ccgp, https://nvd.nist.gov/vuln/detail/CVE-2023-41332, https://github.com/cilium/cilium/pull/27597, https://github.com/cilium/cilium

    Affected packages

    Package

    Name: github.com/cilium/cilium

    Purl: pkg:golang/github.com/cilium/cilium

    Affected ranges

    Type: SEMVER

    Events:

    Introduced- 1.14.0
    Fixed -1.14.2

    Affected versions

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High
    GHSA-24m5-r6hv-ccgp | CVE-DB