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Security Advisory

USN-5744-1: libICE vulnerability




Canonical Ubuntu

Versions Affected

  • Canonical Ubuntu 16.04
  • Canonical Ubuntu 18.04


It was discovered that libICE was using a weak mechanism to generate the session cookies. A local attacker could possibly use this issue to perform a privilege escalation attack. Update Instructions: Run `sudo pro fix USN-5744-1` to fix the vulnerability. The problem can be corrected by updating your system to the following package versions: libice6 – 2:1.0.9-1ubuntu0.16.04.1+esm1 libice-doc – 2:1.0.9-1ubuntu0.16.04.1+esm1 libice-dev – 2:1.0.9-1ubuntu0.16.04.1+esm1 Available with Ubuntu Pro (Infra-only):

CVEs contained in this USN include: CVE-2017-2626.

Affected Cloud Foundry Products and Versions

Severity is low unless otherwise noted.

  • cflinuxfs3
    • All versions prior to 0.341.0
  • CF Deployment
    • All versions prior to 24.0.0


Users of affected products are strongly encouraged to follow the mitigations below. The Cloud Foundry project recommends upgrading the following releases:

  • cflinuxfs3
    • Upgrade all versions to 0.341.0 or greater
  • CF Deployment
    • Upgrade all versions to 24.0.0 or greater


2022-12-07: Initial vulnerability report published.

Cloud Foundry Foundation Security Team Profile Image

Cloud Foundry Foundation Security Team, AUTHOR