Severity

Medium

Vendor

Canonical Ubuntu

Versions Affected

• Canonical Ubuntu 22.04

Description

It was discovered that Perl incorrectly handled printing certain warning messages. An attacker could possibly use this issue to cause Perl to consume resources, leading to a denial of service. This issue only affected Ubuntu 22.04 LTS. (CVE-2022-48522) Nathan Mills discovered that Perl incorrectly handled certain regular expressions. An attacker could use this issue to cause Perl to crash, resulting in a denial of service, or possibly execute arbitrary code. (CVE-2023-47038) Update Instructions: Run sudo pro fix USN-6517-1 to fix the vulnerability. The problem can be corrected by updating your system to the following package versions: libperl-dev – 5.34.0-3ubuntu1.3 perl-modules-5.34 – 5.34.0-3ubuntu1.3 perl-doc – 5.34.0-3ubuntu1.3 perl – 5.34.0-3ubuntu1.3 perl-base – 5.34.0-3ubuntu1.3 perl-debug – 5.34.0-3ubuntu1.3 libperl5.34 – 5.34.0-3ubuntu1.3 No subscription required

CVEs contained in this USN include: CVE-2022-48522, CVE-2023-47038.

Affected Cloud Foundry Products and Versions

Severity is medium unless otherwise noted.

• cflinuxfs4
  • All versions prior to 1.54.0
• Jammy Stemcells
  • 1.x versions prior to 1.318
  • All other stemcells not listed.
• CF Deployment
  • All versions with Jammy Stemcells prior to 1.318

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 1.54.0 or greater
• Jammy Stemcells
  • Upgrade 1.x versions to 1.318 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 1.318 or greater

References

• USN Notice
• CVE-2022-48522
• CVE-2023-47038

History

2024-03-18: Initial vulnerability report published.