High severity · published Aug 29, 2022
CVE-2022-0934
A single-byte, non-arbitrary write/use-after-free flaw was found in dnsmasq
7.5
CVSS
2.6%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)2.6% · higher than 86% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
DN
Dnsmasq · Thekelleys
before 2.87 · source: NVD
EL
Enterprise Linux · Redhat
8.0; 9.0 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2022-0934
CVE.org
https://www.cve.org/CVERecord?id=CVE-2022-0934
Third Party Advisory
https://access.redhat.com/security/cve/CVE-2022-0934
Issue Tracking
https://bugzilla.redhat.com/show_bug.cgi?id=2057075
Mailing List
https://lists.thekelleys.org.uk/pipermail/dnsmasq-discuss/2022q1/016272.html
Broken Link
https://thekelleys.org.uk/gitweb/?p=dnsmasq.git%3Ba=commit%3Bh=03345ecefeb0d82e3c3a4c28f27c3554f0611b39
lists.debian.org
https://lists.debian.org/debian-lts-announce/2024/11/msg00035.html
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