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Security Advisory

USN-3193-1: Nettle vulnerability

USN-3193-1: Nettle vulnerability




Canonical Ubuntu

Versions Affected

  • Canonical Ubuntu 14.04 LTS


It was discovered that Nettle incorrectly mitigated certain timing side-channel attacks. A remote attacker could possibly use this flaw to recover private keys.

Affected Cloud Foundry Products and Versions

Severity is medium unless otherwise noted.

  • Cloud Foundry BOSH stemcells are vulnerable, including:
    • 3151.x versions prior to 3151.11
    • 3233.x versions prior to 3233.14
    • 3263.x versions prior to 3263.20
    • 3312.x versions prior to 3312.20
    • 3363.x versions prior to 3363.9
  • All versions of Cloud Foundry cflinuxfs2 prior to v1.100.0


OSS users are strongly encouraged to follow one of the mitigations below:

  • The Cloud Foundry team recommends upgrading to the following BOSH stemcells:
    • Upgrade 3151.x versions to 3151.11 or later
    • Upgrade 3233.x versions to 3233.14 or later
    • Upgrade 3263.x versions to 3263.20 or later
    • Upgrade 3312.x versions to 3312.20 or later
    • Upgrade 3363.x versions to 3363.9 or later
  • The Cloud Foundry project recommends that Cloud Foundry deployments run with cflinuxfs2 v1.100.0 or later versions



Cloud Foundry Foundation Security Team Profile Image

Cloud Foundry Foundation Security Team, AUTHOR