Severity

High

Vendor

Canonical Ubuntu

Versions Affected

• Canonical Ubuntu 14.04
• Canonical Ubuntu 16.04
• Canonical Ubuntu 18.04

Description

Max Justicz discovered that APT incorrectly handled certain parameters during redirects. If a remote attacker were able to perform a man-in-the-middle attack, this flaw could potentially be used to install altered packages.

CVEs contained in this USN include: CVE-2019-3462

Affected Cloud Foundry Products and Versions

Severity is high unless otherwise noted.

• Cloud Foundry BOSH trusty-stemcells are vulnerable, including:
  • 3586.x versions prior to 3586.70
  • 3541.x versions prior to 3541.74
  • 3468.x versions prior to 3468.94
  • 3445.x versions prior to 3445.90
  • All other stemcells not listed.
• Cloud Foundry BOSH xenial-stemcells are vulnerable, including:
  • 170.x versions prior to 170.23
  • 97.x versions prior to 97.51
  • All other stemcells not listed.
• All versions of Cloud Foundry cflinuxfs2 prior to 1.260.0
• All versions of Cloud Foundry cflinuxfs3 prior to 0.51.0

Mitigation

Users of affected products are strongly encouraged to follow one of the mitigations below:

• The Cloud Foundry project recommends upgrading the following BOSH trusty-stemcells:
  • Upgrade 3586.x versions to 3586.70
  • Upgrade 3541.x versions to 3541.74
  • Upgrade 3468.x versions to 3468.94
  • Upgrade 3445.x versions to 3445.90
  • All other stemcells should be upgraded to the latest version available on bosh.io.
• The Cloud Foundry project recommends upgrading the following BOSH xenial-stemcells:
  • Upgrade 170.x versions to 170.23
  • Upgrade 97.x versions to 97.51
  • All other stemcells should be upgraded to the latest version available on bosh.io.
• The Cloud Foundry project recommends that Cloud Foundry deployments run with cflinuxfs2 version 1.260.0 or later.
• The Cloud Foundry project recommends that Cloud Foundry deployments run with cflinuxfs3 version 0.51.0 or later.

References

• USN-3863-1
• CVE-2019-3462