Cloud Foundry Logo
blog single gear
Security Advisory

USN-6756-1: less vulnerability

USN-6756-1: less vulnerability




Canonical Ubuntu

Versions Affected

  • Canonical Ubuntu 16.04
  • Canonical Ubuntu 18.04
  • Canonical Ubuntu 22.04


It was discovered that less mishandled newline characters in file names. If a user or automated system were tricked into opening specially crafted files, an attacker could possibly use this issue to execute arbitrary commands on the host. Update Instructions: Run `sudo pro fix USN-6756-1` to fix the vulnerability. The problem can be corrected by updating your system to the following package versions: less – 481-2.1ubuntu0.2+esm2 Available with Ubuntu Pro (Infra-only):

CVEs contained in this USN include: CVE-2024-32487.

Affected Cloud Foundry Products and Versions

Severity is medium unless otherwise noted.

  • cflinuxfs4
    • All versions prior to 1.96.0
  • Jammy Stemcells
    • 1.x versions prior to 1.439
    • All other stemcells not listed.
  • CF Deployment
    • All versions prior to 30.0.0, or later versions with Jammy Stemcells prior to 1.439


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 1.96.0 or greater
  • Jammy Stemcells
    • Upgrade 1.x versions to 1.439 or greater
    • All other stemcells should be upgraded to the latest version available on
  • CF Deployment
    • Upgrade all versions to 30.0.0 or greater and upgrade Jammy Stemcells to 1.439 or greater


2024-05-23: Initial vulnerability report published.

Cloud Foundry Foundation Security Team Profile Image

Cloud Foundry Foundation Security Team, AUTHOR