Cloud Foundry Logo
blog single gear

USN-6369-1: libwebp vulnerability




Canonical Ubuntu

Versions Affected

  • Canonical Ubuntu 22.04


It was discovered that libwebp incorrectly handled certain malformed images. If a user or automated system were tricked into opening a specially crafted image file, a remote attacker could use this issue to cause libwebp to crash, resulting in a denial of service, or possibly execute arbitrary code. Update Instructions: Run `sudo pro fix USN-6369-1` to fix the vulnerability. The problem can be corrected by updating your system to the following package versions: webp – 0.6.1-2ubuntu0.20.04.3 libwebp6 – 0.6.1-2ubuntu0.20.04.3 libwebpmux3 – 0.6.1-2ubuntu0.20.04.3 libwebp-dev – 0.6.1-2ubuntu0.20.04.3 libwebpdemux2 – 0.6.1-2ubuntu0.20.04.3 No subscription required

CVEs contained in this USN include: CVE-2023-4863.

Affected Cloud Foundry Products and Versions

Severity is medium unless otherwise noted.

  • cflinuxfs4
    • All versions prior to 1.35.0
  • CF Deployment
    • All versions prior to 32.9.0


Users of affected products are strongly encouraged to follow the mitigations below.

The Cloud Foundry project recommends upgrading the following releases:

  • cflinuxfs4
    • Upgrade all versions to 1.35.0 or greater
  • CF Deployment
    • Upgrade all versions to 32.9.0 or greater


2023-10-05: Initial vulnerability report published.

Cloud Foundry Foundation Security Team Profile Image

Cloud Foundry Foundation Security Team, AUTHOR