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Security Advisory

USN-4719-1: ca-certificates update


Canonical Ubuntu

Versions Affected

  • Canonical Ubuntu 16.04
  • Canonical Ubuntu 18.04


The ca-certificates package contained outdated CA certificates. This update refreshes the included certificates to those contained in the 2.46 version of the Mozilla certificate authority bundle.

Affected Cloud Foundry Products and Versions

  • cflinuxfs3
    • All versions prior to 0.223.0
  • Xenial Stemcells
    • 456.x versions prior to 456.137
    • 621.x versions prior to 621.101
    • All other stemcells not listed.
  • CF Deployment
    • All versions prior to 16.2.0


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 0.223.0 or greater
  • Xenial Stemcells
    • Upgrade 456.x versions to 456.137 or greater
    • Upgrade 621.x versions to 621.101 or greater
    • All other stemcells should be upgraded to the latest version available on
  • CF Deployment
    • Upgrade All versions to 16.2.0 or greater



2021-02-23: Initial vulnerability report published.

Cloud Foundry Foundation Security Team Profile Image

Cloud Foundry Foundation Security Team, AUTHOR