USN-6166-1: libcap2 vulnerabilities

Severity

Medium

Vendor

Canonical Ubuntu

Description

David Gstir discovered that libcap2 incorrectly handled certain return codes. An attacker could possibly use this issue to cause libcap2 to consume memory, leading to a denial of service. (CVE-2023-2602) Richard Weinberger discovered that libcap2 incorrectly handled certain long input strings. An attacker could use this issue to cause libcap2 to crash, resulting in a denial of service, or possibly execute arbitrary code. (CVE-2023-2603) Update Instructions: Run `sudo pro fix USN-6166-1` to fix the vulnerability. The problem can be corrected by updating your system to the following package versions: libcap2 – 1:2.32-1ubuntu0.1 libcap2-bin – 1:2.32-1ubuntu0.1 libpam-cap – 1:2.32-1ubuntu0.1 libcap-dev – 1:2.32-1ubuntu0.1 No subscription required

CVEs contained in this USN include: CVE-2023-2602, CVE-2023-2603.

Affected Cloud Foundry Products and Versions

Severity is medium unless otherwise noted.

• cflinuxfs4
  • All versions prior to 1.19.0
• Jammy Stemcells
  • 1.x versions prior to 1.147
  • All other stemcells not listed.
• CF Deployment
  • All versions with Jammy Stemcells prior to 1.147

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 1.19.0 or greater
• Jammy Stemcells
  • Upgrade 1.x versions to 1.147 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 1.147 or greater

History

2023-06-29: Initial vulnerability report published.