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.
Loading...
Loading...
Score 7.5 from GitHub Security Advisory (severity: HIGH) published 2022-08-29. NVD baseline CVSS 7.5; sources differ by 0.0.
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.
August 29, 2022
November 3, 2025
| Vendor / Ecosystem | Fixed in / Patch | Released | Source |
|---|---|---|---|
| ubuntu | dnsmasq-base (2.68-1ubuntu0.2+esm1) @ trusty | 2026-05-25 | ubuntu |
| redhat | dnsmasq-0:2.79-21.el8_6.5 | 2024-03-27 | redhat |
| redhat | dnsmasq-0:2.85-5.el9 | 2022-11-15 | redhat |
| redhat | dnsmasq-0:2.79-24.el8 | 2022-11-08 | redhat |
Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Every vendor that published an advisory referencing this CVE — pulled from our cve_vendor_advisories aggregation. Click any row for the vendor's original advisory page.
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.
RHSA-2022:7633 — Moderate
RHSA-2022:8070 — Moderate
RHSA-2024:1545 — Moderate
Dnsmasq vulnerability
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
See which npm, PyPI, Go, and Maven packages are affected by CVE-2022-0934
EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.
msrc · redhat
CWE-416