USN-6859-1: OpenSSH vulnerability

Severity

High

Vendor

Canonical Ubuntu

Description

It was discovered that OpenSSH incorrectly handled signal management. A remote attacker could use this issue to bypass authentication and remotely access systems without proper credentials. Update Instructions: Run `sudo pro fix USN-6859-1` to fix the vulnerability. The problem can be corrected by updating your system to the following package versions: openssh-client – 1:8.9p1-3ubuntu0.10 openssh-server – 1:8.9p1-3ubuntu0.10 openssh-sftp-server – 1:8.9p1-3ubuntu0.10 openssh-tests – 1:8.9p1-3ubuntu0.10 ssh – 1:8.9p1-3ubuntu0.10 ssh-askpass-gnome – 1:8.9p1-3ubuntu0.10 No subscription required

CVEs contained in this USN include: CVE-2024-6387.

Affected Cloud Foundry Products and Versions

Severity is high unless otherwise noted.

• cflinuxfs4
  • All versions prior to 1.99.0
• Jammy Stemcells
  • 1.x versions prior to 1.486
  • All other stemcells not listed.
• CF Deployment
  • All versions with Jammy Stemcells prior to 1.486

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 1.99.0 or greater
• Jammy Stemcells
  • Upgrade 1.x versions to 1.486 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 1.486 or greater

History

2024-07-25: Initial vulnerability report published.