USN-5908-1: Sudo vulnerability | Cloud Foundry

Severity

Medium

Vendor

Canonical Ubuntu

Versions Affected

• Canonical Ubuntu 22.04

Description

It was discovered that Sudo incorrectly handled the per-command chroot feature. In certain environments where Sudo is configured with a rule that contains a CHROOT setting, a local attacker could use this issue to cause Sudo to crash, resulting in a denial of service, or possibly escalate privileges. Update Instructions: Run sudo pro fix USN-5908-1 to fix the vulnerability. The problem can be corrected by updating your system to the following package versions: sudo-ldap – 1.9.9-1ubuntu2.3 sudo – 1.9.9-1ubuntu2.3 No subscription required

CVEs contained in this USN include: CVE-2023-27320.

Affected Cloud Foundry Products and Versions

Severity is medium unless otherwise noted.

• cflinuxfs4
  • All versions prior to 0.70.0
• Jammy Stemcells
  • 1.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 0.70.0 or greater
• Jammy Stemcells
  • Upgrade 1.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-2023-27320

History

2023-03-23: Initial vulnerability report published.