Severity

Medium

Vendor

Canonical Ubuntu

Versions Affected

• Canonical Ubuntu 16.04

Description

USN-4236-1 fixed a vulnerability in Libgcrypt. This update provides the corresponding fix for Ubuntu 16.04 LTS.

Original advisory details:

It was discovered that Libgcrypt was susceptible to a ECDSA timing attack. An attacker could possibly use this attack to recover sensitive information.

CVEs contained in this USN include: CVE-2019-13627.

Affected Cloud Foundry Products and Versions

Severity is medium unless otherwise noted.

• Xenial Stemcells
  • 621.x versions prior to 621.50
  • 456.x versions prior to 456.93
  • 315.x versions prior to 315.163
  • 250.x versions prior to 250.178
  • 170.x versions prior to 170.198
  • 97.x versions prior to 97.226
  • All other stemcells not listed.

Mitigation

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

• Xenial Stemcells
  • Upgrade 621.x versions to 621.50 or greater
  • Upgrade 456.x versions to 456.93 or greater
  • Upgrade 315.x versions to 315.163 or greater
  • Upgrade 250.x versions to 250.178 or greater
  • Upgrade 170.x versions to 170.198 or greater
  • Upgrade 97.x versions to 97.226 or greater
  • All other stemcells should be upgraded to the latest version available on bosh.io.

References

• USN Notice
• CVE-2019-13627

History

2020-01-14: Initial vulnerability report published.