CVE-2018-5742: ISC BIND

High severity, CVSS 7.5. EPSS: 1.6% chance of exploitation in the next 30 days.

While backporting a feature for a newer branch of BIND9, RedHat introduced a path leading to an assertion failure in buffer.c:420. Affects RedHat versions bind-9.9.4-65.el7 -> bind-9.9.4-72.el7. No ISC releases are affected. Other packages from other distributions who made the same error may also be affected.

Affected products

• ISC BIND: from 9.9.4-65, up to and including 9.9.4-72

Published 2019-10-30. Last modified 2026-06-17.