USN-6112-2: Perl vulnerability | Cloud Foundry

Severity

Medium

Vendor

Canonical Ubuntu

Versions Affected

• Canonical Ubuntu 22.04

Description

USN-6112-1 fixed vulnerabilities in Perl. This update provides the corresponding updates for Ubuntu 20.04 LTS, Ubuntu 22.04 LTS, Ubuntu 22.10, and Ubuntu 23.04. Original advisory details: It was discovered that Perl was not properly verifying TLS certificates when using CPAN together with HTTP::Tiny to download modules over HTTPS. If a remote attacker were able to intercept communications, this flaw could potentially be used to install altered modules. Update Instructions: Run sudo pro fix USN-6112-2 to fix the vulnerability. The problem can be corrected by updating your system to the following package versions: perl-modules-5.30 – 5.30.0-9ubuntu0.4 libperl-dev – 5.30.0-9ubuntu0.4 perl-doc – 5.30.0-9ubuntu0.4 perl – 5.30.0-9ubuntu0.4 perl-base – 5.30.0-9ubuntu0.4 libperl5.30 – 5.30.0-9ubuntu0.4 perl-debug – 5.30.0-9ubuntu0.4 No subscription required

CVEs contained in this USN include: CVE-2023-31484.

Affected Cloud Foundry Products and Versions

Severity is medium unless otherwise noted.

• cflinuxfs4
  • All versions prior to 1.15.0
• 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 1.15.0 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

References

• USN Notice
• CVE-2023-31484

History

2023-06-29: Initial vulnerability report published.