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  5. CVE-2024-42486

CVE-2024-42486: Cilium leaks information via incorrect ReferenceGrant update logic in Gateway API

August 16, 2024

Due to ReferenceGrant changes not being immediately propagated in Cilium’s GatewayAPI controller, Gateway resources are able to access secrets in other namespaces after the associated ReferenceGrant has been revoked. This can lead to Gateways continuing to establish sessions using secrets that they should no longer have access to.

References

  • github.com/advisories/GHSA-vwf8-q6fw-4wcm
  • github.com/cilium/cilium
  • github.com/cilium/cilium/commit/414a96b53d51ef6e6645c44426e26bc8e7c7c059
  • github.com/cilium/cilium/commit/92c110e58a7be6586819dd51fb0f6ee1ec4be8f8
  • github.com/cilium/cilium/commit/ed3dfa0aab8b80f7e841a6d49d2a990ac2dca053
  • github.com/cilium/cilium/pull/34032
  • github.com/cilium/cilium/security/advisories/GHSA-vwf8-q6fw-4wcm
  • nvd.nist.gov/vuln/detail/CVE-2024-42486

Code Behaviors & Features

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Affected versions

All versions starting from 1.15.0 before 1.15.8, all versions starting from 1.16.0 before 1.16.1, version 1.16.0

Fixed versions

  • 1.16.1
  • 1.15.8

Solution

Upgrade to versions 1.15.8, 1.16.1 or above.

Impact 5.4 MEDIUM

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

Learn more about CVSS

Weakness

  • CWE-200: Exposure of Sensitive Information to an Unauthorized Actor

Source file

go/github.com/cilium/cilium/CVE-2024-42486.yml

Spotted a mistake? Edit the file on GitLab.

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