Severity

Medium

Vendor

Canonical Ubuntu

Versions Affected

• Canonical Ubuntu 16.04
• Canonical Ubuntu 18.04

Description

It was discovered that Python incorrectly parsed certain email addresses. A remote attacker could possibly use this issue to trick Python applications into accepting email addresses that should be denied. (CVE-2019-16056)

It was discovered that the Python documentation XML-RPC server incorrectly handled certain fields. A remote attacker could use this issue to execute a cross-site scripting (XSS) attack. (CVE-2019-16935)

CVEs contained in this USN include: CVE-2019-16056, CVE-2019-16935

Affected Cloud Foundry Products and Versions

Severity is medium unless otherwise noted.

• Cloud Foundry BOSH xenial-stemcells are vulnerable, including:
  • 456.x versions prior to 456.40
  • 315.x versions prior to 315.114
  • 250.x versions prior to 250.130
  • 170.x versions prior to 170.152
  • 97.x versions prior to 97.176
  • All other stemcells not listed.
• All versions of Cloud Foundry cflinuxfs3 prior to 0.133.0

Mitigation

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

• The Cloud Foundry project recommends upgrading the following BOSH xenial-stemcells:
  • Upgrade 456.x versions to 456.40
  • Upgrade 315.x versions to 315.114
  • Upgrade 250.x versions to 250.130
  • Upgrade 170.x versions to 170.152
  • Upgrade 97.x versions to 97.176
  • 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 cflinuxfs3 version 0.133.0 or later.

References

• USN-4151-1
• CVE-2019-16056
• CVE-2019-16935