CVE-2022-0934

7.5 HIGH

Published: August 29, 2022 Modified: November 03, 2025

Description

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.

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CVSS v3.x Details

0.0 Low Medium High Critical 10.0

Vector String

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

References to Advisories, Solutions, and Tools

Patch Vendor Advisory Exploit Third Party Advisory

https://access.redhat.com/security/cve/CVE-2022-0934

Source: secalert@redhat.com

Third Party Advisory

https://bugzilla.redhat.com/show_bug.cgi?id=2057075

Source: secalert@redhat.com

Issue Tracking Patch Third Party Advisory

https://lists.thekelleys.org.uk/pipermail/dnsmasq-discuss/2022q1/016272.html

Source: secalert@redhat.com

Mailing List Vendor Advisory

https://thekelleys.org.uk/gitweb/?p=dnsmasq.git%3Ba=commit%3Bh=03345ecefeb0d82e3c3a4c28f27c3554f0611b39

Source: secalert@redhat.com

Broken Link

https://access.redhat.com/security/cve/CVE-2022-0934