Severity

Medium

Vendor

Canonical Ubuntu

Versions Affected

• Canonical Ubuntu 18.04

Description

Lior Shafir, Yehuda Afek, and Anat Bremler-Barr discovered that Unbound incorrectly handled certain queries. A remote attacker could use this issue to perform an amplification attack directed at a target. (CVE-2020-12662)

It was discovered that Unbound incorrectly handled certain malformed answers. A remote attacker could possibly use this issue to cause Unbound to crash, resulting in a denial of service. (CVE-2020-12663)

CVEs contained in this USN include: CVE-2020-12662, CVE-2020-12663.

Affected Cloud Foundry Products and Versions

Severity is medium unless otherwise noted.

• cflinuxfs3
  • All versions prior to 0.188.0
• CF Deployment
  • All versions prior to v13.5.0

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 0.188.0 or greater
• CF Deployment
  • Upgrade All versions to v13.5.0 or greater

References

• USN Notice
• CVE-2020-12662
• CVE-2020-12663

History

2020-05-27: Initial vulnerability report published.