USN-5189-1: GLib vulnerability | Cloud Foundry

Severity

Medium

Vendor

Canonical Ubuntu

Versions Affected

• Canonical Ubuntu 16.04
• Canonical Ubuntu 18.04

Description

It was discovered that GLib incorrectly handled certain environment variables. An attacker could possibly use this issue to escalate privileges.

CVEs contained in this USN include: CVE-2021-3800.

Affected Cloud Foundry Products and Versions

Severity is medium unless otherwise noted.

• Bionic Stemcells
  • 1.x versions prior to 1.51
  • All other stemcells not listed.
• cflinuxfs3
  • All versions prior to 0.270.0
• CF Deployment
  • All versions prior to 17.1.0

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 1.51 or greater
  • All other stemcells should be upgraded to the latest version available on bosh.io.
• cflinuxfs3
  • Upgrade all versions to 0.270.0 or greater
• CF Deployment
  • Upgrade all versions to 17.1.0 or greater

References

• USN Notice
• CVE-2021-3800

History

2022-01-20: Initial vulnerability report published.