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.
References (5)
Core 5
Core References
Issue Tracking, Patch, Third Party Advisory x_refsource_misc
https://bugzilla.redhat.com/show_bug.cgi?id=2057075
Mailing List, Vendor Advisory x_refsource_misc
https://lists.thekelleys.org.uk/pipermail/dnsmasq-discuss/2022q1/016272.html
Broken Link x_refsource_misc
https://thekelleys.org.uk/gitweb/?p=dnsmasq.git%3Ba=commit%3Bh=03345ecefeb0d82e3c3a4c28f27c3554f0611b39
Third Party Advisory x_refsource_misc
https://access.redhat.com/security/cve/CVE-2022-0934
Scores
CVSS v3
7.5
EPSS
0.0002
EPSS Percentile
5.3%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
yes
Technical Impact
partial
Details
CWE
CWE-416
Status
published
Products (3)
redhat/enterprise_linux
8.0
redhat/enterprise_linux
9.0
thekelleys/dnsmasq
< 2.87
Published
Aug 29, 2022
Tracked Since
Feb 18, 2026