USN-6028-1: libxml2 vulnerabilities

Severity

Medium

Vendor

Canonical Ubuntu

Description

It was discovered that lixml2 incorrectly handled certain XML files. An attacker could possibly use this issue to cause a crash or execute arbitrary code. (CVE-2023-28484) It was discovered that libxml2 incorrectly handled certain XML files. An attacker could possibly use this issue to cause a crash. (CVE-2023-29469) Update Instructions: Run `sudo pro fix USN-6028-1` to fix the vulnerability. The problem can be corrected by updating your system to the following package versions: libxml2 – 2.9.3+dfsg1-1ubuntu0.7+esm5 libxml2-dev – 2.9.3+dfsg1-1ubuntu0.7+esm5 python-libxml2 – 2.9.3+dfsg1-1ubuntu0.7+esm5 libxml2-doc – 2.9.3+dfsg1-1ubuntu0.7+esm5 libxml2-utils – 2.9.3+dfsg1-1ubuntu0.7+esm5 Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro

CVEs contained in this USN include: CVE-2023-28484, CVE-2023-29469.

Affected Cloud Foundry Products and Versions

Severity is medium unless otherwise noted.

• Bionic Stemcells
  • 1.x versions prior to 1.195
  • All other stemcells not listed.
• cflinuxfs3
  • All versions prior to 0.362.0
• cflinuxfs4
  • All versions prior to 1.6.0
• Jammy Stemcells
  • 1.x versions prior to 1.105
  • All other stemcells not listed.
• CF Deployment
  • All versions prior to 28.0.0, or later versions with Jammy Stemcells prior to 1.105 or Bionic Stemcells prior to 1.195

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 1.195 or greater
  • All other stemcells should be upgraded to the latest version available on bosh.io.
• cflinuxfs3
  • Upgrade all versions to 0.362.0 or greater
• cflinuxfs4
  • Upgrade all versions to 1.6.0 or greater
• Jammy Stemcells
  • Upgrade 1.x versions to 1.105 or greater
  • All other stemcells should be upgraded to the latest version available on bosh.io.
• CF Deployment
  • Upgrade all versions to 28.0.0 or greater, upgrade Jammy Stemcells to 1.105 or greater, and upgrade Bionic Stemcells to 1.195 or greater

History

2023-04-29: Initial vulnerability report published.