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Security Advisory

USN-6517-1: Perl vulnerabilities

USN-6517-1: Perl vulnerabilities




Canonical Ubuntu

Versions Affected

  • Canonical Ubuntu 22.04


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


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
  • CF Deployment
    • For all versions, upgrade Jammy Stemcells to 1.318 or greater


2024-03-18: Initial vulnerability report published.

Cloud Foundry Foundation Security Team Profile Image

Cloud Foundry Foundation Security Team, AUTHOR