USN-4922-1: Ruby vulnerability

Severity

Medium

Vendor

Canonical Ubuntu

Description

Juho Nurminen discovered that the REXML gem bundled with Ruby incorrectly parsed and serialized XML documents. A remote attacker could possibly use this issue to perform an XML round-trip attack.

CVEs contained in this USN include: CVE-2021-28965.

Affected Cloud Foundry Products and Versions

Severity is medium unless otherwise noted.

• cflinuxfs3
  • All versions prior to 0.236.0
• CF Deployment
  • All versions prior to 16.13.0

Mitigation

Users of affected products are strongly encouraged to follow the mitigations below. The Cloud Foundry project recommends upgrading the following releases:

• cflinuxfs3
  • Upgrade all versions to 0.236.0 or greater
• CF Deployment
  • Upgrade all versions to 16.13.0 or greater

History

2021-04-29: Initial vulnerability report published.