Cloud Foundry Logo
blog single gear
Security Advisory

USN-5410-1: NSS vulnerability




Canonical Ubuntu

Versions Affected

  • Canonical Ubuntu 18.04


Lenny Wang discovered that NSS incorrectly handled certain messages. A remote attacker could possibly use this issue to cause servers compiled with NSS to stop responding, resulting in a denial of service. Update Instructions: Run `sudo ua fix USN-5410-1` to fix the vulnerability. The problem can be corrected by updating your system to the following package versions: libnss3-dev – 2:3.35-2ubuntu2.14 libnss3 – 2:3.35-2ubuntu2.14 libnss3-tools – 2:3.35-2ubuntu2.14 No subscription required

CVEs contained in this USN include: CVE-2020-25648.

Affected Cloud Foundry Products and Versions

Severity is low unless otherwise noted.

  • Bionic Stemcells
    • 1.x versions prior to 1.84
    • All other stemcells not listed.
  • CF Deployment
    • All versions with Bionic Stemcells prior to 1.84


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

  • Bionic Stemcells
    • Upgrade 1.x versions to 1.84 or greater
    • All other stemcells should be upgraded to the latest version available on
  • CF Deployment
    • For all versions, upgrade Bionic Stemcells to 1.84 or greater


2022-05-26: Initial vulnerability report published.

Cloud Foundry Foundation Security Team Profile Image

Cloud Foundry Foundation Security Team, AUTHOR