USN-5638-2: Expat vulnerabilities

Severity

Medium

Vendor

Canonical Ubuntu

Description

USN-5638-1 fixed a vulnerability in Expat. This update provides the corresponding updates for Ubuntu 18.04 LTS, Ubuntu 20.04 LTS and Ubuntu 22.04 LTS. Original advisory details: Rhodri James discovered that Expat incorrectly handled memory when processing certain malformed XML files. An attacker could possibly use this issue to cause a crash or execute arbitrary code. Update Instructions: Run `sudo pro fix USN-5638-2` to fix the vulnerability. The problem can be corrected by updating your system to the following package versions: expat – 2.2.5-3ubuntu0.8 libexpat1-dev – 2.2.5-3ubuntu0.8 libexpat1 – 2.2.5-3ubuntu0.8 No subscription required

CVEs contained in this USN include: CVE-2022-40674, CVE-2022-43680.

Affected Cloud Foundry Products and Versions

Severity is medium unless otherwise noted.

• Bionic Stemcells
  • 1.x versions prior to 1.150
  • All other stemcells not listed.
• cflinuxfs3
  • All versions prior to 0.335.0
• Jammy Stemcells
  • 1.x versions prior to 1.55
  • All other stemcells not listed.
• CF Deployment
  • All versions prior to 23.3.0, or later versions with Jammy Stemcells prior to 1.55 or Bionic Stemcells prior to 1.150

Mitigation

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 1.150 or greater
  • All other stemcells should be upgraded to the latest version available on bosh.io.
• cflinuxfs3
  • Upgrade all versions to 0.335.0 or greater
• Jammy Stemcells
  • Upgrade 1.x versions to 1.55 or greater
  • All other stemcells should be upgraded to the latest version available on bosh.io.
• CF Deployment
  • Upgrade all versions to 23.3.0 or greater, upgrade Jammy Stemcells to 1.55 or greater, and upgrade Bionic Stemcells to 1.150 or greater

History

2022-12-07: Initial vulnerability report published.