USN-6588-1: PAM vulnerability

Severity

Medium

Vendor

Canonical Ubuntu

Description

Matthias Gerstner discovered that the PAM pam_namespace module incorrectly handled special files when performing directory checks. A local attacker could possibly use this issue to cause PAM to stop responding, resulting in a denial of service. Update Instructions: Run `sudo pro fix USN-6588-1` to fix the vulnerability. The problem can be corrected by updating your system to the following package versions: libpam-runtime – 1.3.1-5ubuntu4.7 libpam0g-dev – 1.3.1-5ubuntu4.7 libpam-modules – 1.3.1-5ubuntu4.7 libpam-modules-bin – 1.3.1-5ubuntu4.7 libpam-doc – 1.3.1-5ubuntu4.7 libpam-cracklib – 1.3.1-5ubuntu4.7 libpam0g – 1.3.1-5ubuntu4.7 No subscription required

CVEs contained in this USN include: CVE-2024-22365.

Affected Cloud Foundry Products and Versions

Severity is medium unless otherwise noted.

• cflinuxfs4
  • All versions prior to 1.66.0
• Jammy Stemcells
  • 1.x versions prior to 1.351
  • All other stemcells not listed.
• CF Deployment
  • All versions with Jammy Stemcells prior to 1.351

Mitigation

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 1.66.0 or greater
• Jammy Stemcells
  • Upgrade 1.x versions to 1.351 or greater
  • All other stemcells should be upgraded to the latest version available on bosh.io.
• CF Deployment
  • For all versions, upgrade Jammy Stemcells to 1.351 or greater

History

2024-02-29: Initial vulnerability report published.