USN-5892-1: NSS vulnerabilities | Cloud Foundry

Severity

Medium

Vendor

Canonical Ubuntu

Versions Affected

• Canonical Ubuntu 18.04

Description

It was discovered that NSS incorrectly handled client authentication without a user certificate in the database. A remote attacker could possibly use this issue to cause a NSS client to crash, resulting in a denial of service. This issue only affected Ubuntu 22.10. (CVE-2022-3479) Christian Holler discovered that NSS incorrectly handled certain PKCS 12 certificated bundles. A remote attacker could use this issue to cause NSS to crash, leading to a denial of service, or possibly execute arbitrary code. (CVE-2023-0767) Update Instructions: Run sudo pro fix USN-5892-1 to fix the vulnerability. The problem can be corrected by updating your system to the following package versions: libnss3-dev – 2:3.35-2ubuntu2.16 libnss3 – 2:3.35-2ubuntu2.16 libnss3-tools – 2:3.35-2ubuntu2.16 No subscription required

CVEs contained in this USN include: CVE-2023-0767, CVE-2022-3479.

Affected Cloud Foundry Products and Versions

Severity is medium unless otherwise noted.

• Bionic Stemcells
  • 1.x versions prior to 1.181
  • All other stemcells not listed.
• CF Deployment
  • All versions with Bionic Stemcells prior to 1.181

Mitigation

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

• Bionic Stemcells
  • Upgrade 1.x versions to 1.181 or greater
  • All other stemcells should be upgraded to the latest version available on bosh.io.
• CF Deployment
  • For all versions, upgrade Bionic Stemcells to 1.181 or greater

References

• USN Notice
• CVE-2023-0767
• CVE-2022-3479

History

2023-06-30: Initial vulnerability report published.