USN-6755-1: GNU cpio vulnerabilities | Cloud Foundry

Severity

Medium

Vendor

Canonical Ubuntu

Versions Affected

• Canonical Ubuntu 22.04

Description

Ingo Brückl discovered that cpio contained a path traversal vulnerability. If a user or automated system were tricked into extracting a specially crafted cpio archive, an attacker could possibly use this issue to write arbitrary files outside the target directory on the host, even if using the option –no-absolute-filenames. Update Instructions: Run sudo pro fix USN-6755-1 to fix the vulnerability. The problem can be corrected by updating your system to the following package versions: cpio – 2.13+dfsg-2ubuntu0.4 cpio-win32 – 2.13+dfsg-2ubuntu0.4 No subscription required

CVEs contained in this USN include: CVE-2023-7207.

Affected Cloud Foundry Products and Versions

Severity is medium unless otherwise noted.

• Jammy Stemcells
  • 1.x versions prior to 1.439
  • All other stemcells not listed.
• CF Deployment
  • All versions with Jammy Stemcells prior to 1.439

Mitigation

Users of affected products are strongly encouraged to follow the mitigations below.

The Cloud Foundry project recommends upgrading the following releases:

• Jammy Stemcells
  • Upgrade 1.x versions to 1.439 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 1.439 or greater

References

• USN Notice
• CVE-2023-7207

History

2024-07-25: Initial vulnerability report published.