CVE-2022-0934: Red Hat Enterprise Linux

High severity, CVSS 7.5. EPSS: 2.5% chance of exploitation in the next 30 days.

A single-byte, non-arbitrary write/use-after-free flaw was found in dnsmasq. This flaw allows an attacker who sends a crafted packet processed by dnsmasq, potentially causing a denial of service.

Affected products

• Red Hat Enterprise Linux: version 8.0 only; version 9.0 only
• Thekelleys Dnsmasq: before 2.87 (fixed in 2.87)

Published 2022-08-29. Last modified 2026-06-17.