USN-6854-1: OpenSSL vulnerability | Cloud Foundry

Severity

Medium

Vendor

Canonical Ubuntu

Versions Affected

• Canonical Ubuntu 22.04

Description

It was discovered that OpenSSL failed to choose an appropriately short private key size when computing shared-secrets in the Diffie-Hellman Key Agreement Protocol. A remote attacker could possibly use this issue to cause OpenSSL to consume resources, resulting in a denial of service. Update Instructions: Run sudo pro fix USN-6854-1 to fix the vulnerability. The problem can be corrected by updating your system to the following package versions: libssl-dev – 3.0.2-0ubuntu1.16 libssl-doc – 3.0.2-0ubuntu1.16 libssl3 – 3.0.2-0ubuntu1.16 openssl – 3.0.2-0ubuntu1.16 No subscription required

CVEs contained in this USN include: CVE-2022-40735.

Affected Cloud Foundry Products and Versions

Severity is medium unless otherwise noted.

• cflinuxfs4
  • All versions prior to 1.99.0
• Jammy Stemcells
  • 1.x versions prior to 1.486
  • All other stemcells not listed.
• CF Deployment
  • All versions with Jammy Stemcells prior to 1.486

Mitigation

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

The Cloud Foundry project recommends upgrading the following releases:

• cflinuxfs4
  • Upgrade all versions to 1.99.0 or greater
• Jammy Stemcells
  • Upgrade 1.x versions to 1.486 or greater
  • All other stemcells should be upgraded to the latest version available on bosh.io.
• CF Deployment
  • For all versions, upgrade Jammy Stemcells to 1.486 or greater

References

• USN Notice
• CVE-2022-40735

History

2024-07-25: Initial vulnerability report published.