Severity

Medium

Vendor

Canonical Ubuntu

Versions Affected

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

Description

It was discovered that libarchive incorrectly handled certain 7zip files. An attacker could possibly use this issue to cause a denial of service. (CVE-2019-1000019, CVE-2019-1000020)

CVEs contained in this USN include: CVE-2019-1000019, CVE-2019-1000020

Affected Cloud Foundry Products and Versions

Severity is medium unless otherwise noted.

• Cloud Foundry BOSH trusty-stemcells are vulnerable, including:
  • 3586.x versions prior to 3586.79
  • 3541.x versions prior to 3541.80
  • 3468.x versions prior to 3468.101
  • 3445.x versions prior to 3445.97
  • 3421.x versions prior to 3421.117
  • All other stemcells not listed.
• Cloud Foundry BOSH xenial-stemcells are vulnerable, including:
  • 250.x versions prior to 250.9
  • 170.x versions prior to 170.30
  • 97.x versions prior to 97.57
  • All other stemcells not listed.
• All versions of Cloud Foundry cflinuxfs2 prior to 1.265.0
• All versions of Cloud Foundry cflinuxfs3 prior to 0.59.0

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 3586.79
  • Upgrade 3541.x versions to 3541.80
  • Upgrade 3468.x versions to 3468.101
  • Upgrade 3445.x versions to 3445.97
  • Upgrade 3421.x versions to 3421.117
  • 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 250.x versions to 250.9
  • Upgrade 170.x versions to 170.30
  • Upgrade 97.x versions to 97.57
  • 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 1.265.0 or later.
• The Cloud Foundry project recommends that Cloud Foundry deployments run with cflinuxfs3 version 0.59.0 or later.

References

• USN-3884-1
• CVE-2019-1000019
• CVE-2019-1000020