USN-6622-1: OpenSSL vulnerabilities

Severity

Low

Vendor

Canonical Ubuntu

Description

David Benjamin discovered that OpenSSL incorrectly handled excessively long X9.42 DH keys. A remote attacker could possibly use this issue to cause OpenSSL to consume resources, leading to a denial of service. (CVE-2023-5678) Sverker Eriksson discovered that OpenSSL incorrectly handled POLY1304 MAC on the PowerPC architecture. A remote attacker could use this issue to cause OpenSSL to crash, resulting in a denial of service, or possibly execute arbitrary code. This issue only affected Ubuntu 22.04 LTS and Ubuntu 23.04. (CVE-2023-6129) It was discovered that OpenSSL incorrectly handled excessively long RSA public keys. A remote attacker could possibly use this issue to cause OpenSSL to consume resources, leading to a denial of service. This issue only affected Ubuntu 22.04 LTS and Ubuntu 23.04. (CVE-2023-6237) Bahaa Naamneh discovered that OpenSSL incorrectly handled certain malformed PKCS12 files. A remote attacker could possibly use this issue to cause OpenSSL to crash, resulting in a denial of service. (CVE-2024-0727) Update Instructions: Run `sudo pro fix USN-6622-1` to fix the vulnerability. The problem can be corrected by updating your system to the following package versions: libssl1.1 – 1.1.1f-1ubuntu2.21 libssl-dev – 1.1.1f-1ubuntu2.21 openssl – 1.1.1f-1ubuntu2.21 libssl-doc – 1.1.1f-1ubuntu2.21 No subscription required

CVEs contained in this USN include: CVE-2023-5678, CVE-2024-0727, CVE-2023-6129, CVE-2023-6237.

Affected Cloud Foundry Products and Versions

Severity is low unless otherwise noted.

• cflinuxfs4
  • All versions prior to 1.69.0
• Jammy Stemcells
  • 1.x versions prior to 1.360
  • All other stemcells not listed.
• CF Deployment
  • All versions with Jammy Stemcells prior to 1.360

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 1.69.0 or greater
• Jammy Stemcells
  • Upgrade 1.x versions to 1.360 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 1.360 or greater

History

2024-02-29: Initial vulnerability report published.