Severity

Low

Vendor

Canonical Ubuntu

Versions Affected

• Canonical Ubuntu 16.04
• Canonical Ubuntu 18.04

Description

Joe Vennix discovered that Sudo incorrectly handled memory operations when the pwfeedback option is enabled. A local attacker could possibly use this issue to obtain unintended access to the administrator account.

CVEs contained in this USN include: CVE-2019-18634.

Affected Cloud Foundry Products and Versions

Severity is low unless otherwise noted.

• cflinuxfs3
  • All versions prior to 0.161.0
• Xenial Stemcells
  • 621.x versions prior to 621.55
  • 456.x versions prior to 456.96
  • 315.x versions prior to 315.167
  • 250.x versions prior to 250.181
  • 170.x versions prior to 170.201
  • 97.x versions prior to 97.230
  • All other stemcells not listed.
• CF Deployment

  •   * All versions prior to v12.31.0
    

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 0.161.0 or greater
• Xenial Stemcells
  • Upgrade 621.x versions to 621.55 or greater
  • Upgrade 456.x versions to 456.96 or greater
  • Upgrade 315.x versions to 315.167 or greater
  • Upgrade 250.x versions to 250.181 or greater
  • Upgrade 170.x versions to 170.201 or greater
  • Upgrade 97.x versions to 97.230 or greater
  • All other stemcells should be upgraded to the latest version available on bosh.io.
• CF Deployment
  • Upgrade All versions to v12.31.0 or greater

References

• USN Notice
• CVE-2019-18634

History

2020-02-03: Initial vulnerability report published.