USN-4667-1: APT vulnerability | Cloud Foundry

Severity

Medium

Vendor

Canonical Ubuntu

Versions Affected

• Canonical Ubuntu 16.04
• Canonical Ubuntu 18.04

Description

Kevin Backhouse discovered that APT incorrectly handled certain packages. A local attacker could possibly use this issue to cause APT to crash or stop responding, resulting in a denial of service.

CVEs contained in this USN include: CVE-2020-27350.

Affected Cloud Foundry Products and Versions

Severity is medium unless otherwise noted.

• cflinuxfs3
  • All versions prior to 0.214.0
• Xenial Stemcells
  • 315.x versions prior to 315.204
  • 456.x versions prior to 456.131
  • 621.x versions prior to 621.95
  • All other stemcells not listed.
• CF Deployment
  • All versions prior to 15.4.0

Mitigation

Users of affected products are strongly encouraged to follow the mitigations below. The Cloud Foundry project recommends upgrading the following releases:

• cflinuxfs3
  • Upgrade All versions to 0.214.0 or greater
• Xenial Stemcells
  • Upgrade 315.x versions to 315.204 or greater
  • Upgrade 456.x versions to 456.131 or greater
  • Upgrade 621.x versions to 621.95 or greater
  • All other stemcells should be upgraded to the latest version available on bosh.io.
• CF Deployment
  • Upgrade All versions to 15.4.0 or greater

References

• USN Notice
• CVE-2020-27350

History

2021-01-13: Initial vulnerability report published.