USN-5366-1: FriBidi vulnerabilities

Severity

Medium

Vendor

Canonical Ubuntu

Description

It was discovered that FriBidi incorrectly handled processing of input strings resulting in memory corruption. An attacker could use this issue to cause FriBidi to crash, resulting in a denial of service, or potentially execute arbitrary code. (CVE-2022-25308) It was discovered that FriBidi incorrectly validated input data to its CapRTL unicode encoder, resulting in memory corruption. An attacker could use this issue to cause FriBidi to crash, resulting in a denial of service, or potentially execute arbitrary code. (CVE-2022-25309) It was discovered that FriBidi incorrectly handled empty input when removing marks from unicode strings, resulting in a crash. An attacker could use this to cause FriBidi to crash, resulting in a denial of service, or potentially execute arbitrary code. (CVE-2022-25310) Update Instructions: Run `sudo ua fix USN-5366-1` to fix the vulnerability. The problem can be corrected by updating your system to the following package versions: libfribidi-bin – 0.19.7-2ubuntu0.1 libfribidi0 – 0.19.7-2ubuntu0.1 libfribidi-dev – 0.19.7-2ubuntu0.1 No subscription required

CVEs contained in this USN include: CVE-2022-25308, CVE-2022-25309, CVE-2022-25310.

Affected Cloud Foundry Products and Versions

Severity is medium unless otherwise noted.

• Bionic Stemcells
  • 1.x versions prior to 1.79
  • All other stemcells not listed.
• cflinuxfs3
  • All versions prior to 0.282.0
• CF Deployment
  • All versions prior to 20.0.0, or later versions with Bionic Stemcells prior to 1.79

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 1.79 or greater
  • All other stemcells should be upgraded to the latest version available on bosh.io.
• cflinuxfs3
  • Upgrade all versions to 0.282.0 or greater
• CF Deployment
  • Upgrade all versions to 20.0.0 or greater and upgrade Bionic Stemcells to 1.79 or greater

History

2022-05-26: Initial vulnerability report published.