Severity

Medium

Vendor

Canonical Ubuntu

Versions Affected

• Canonical Ubuntu 22.04

Description

David Leadbeater discovered that less was not properly handling escape sequences when displaying raw control characters. A maliciously formed OSC 8 hyperlink could be used by an attacker to perform a denial of service. Update Instructions: Run sudo pro fix USN-5848-1 to fix the vulnerability. The problem can be corrected by updating your system to the following package versions: less – 590-1ubuntu0.22.04.1 No subscription required

CVEs contained in this USN include: CVE-2022-46663.

Affected Cloud Foundry Products and Versions

Severity is medium unless otherwise noted.

• cflinuxfs4
  • All versions prior to 0.63.0
• Jammy Stemcells
  • v1.x versions prior to 1.93
  • All other stemcells not listed.
• CF Deployment
  • All versions with Jammy Stemcells prior to 1.93

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 0.63.0 or greater
• Jammy Stemcells
  • Upgrade v1.x versions to 1.93 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 1.93 or greater

References

• USN Notice
• CVE-2022-46663

History

2023-04-20: Initial vulnerability report published.