Input validation error in Dnsmasq - CVE-2013-0198
Published: February 13, 2023 / Updated: June 8, 2025
Vulnerability identifier: #VU110637
CSH Severity: Medium
CVSSv4.0:
CVE-ID: CVE-2013-0198
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerable software:
Dnsmasq
Dnsmasq
Software vendor:
GNU
GNU
Description
The vulnerability allows remote attackers to perform a denial of service (DoS) attack.
The vulnerability exists due to insufficient validation of user-supplied input. A remote attacker can cause a denial of service (traffic amplification) via spoofed TCP based DNS queries.
Remediation
Install update from vendor's website.
External links
- https://bugzilla.redhat.com/show_bug.cgi?id=894486
- http://www.openwall.com/lists/oss-security/2013/01/18/7
- http://www.openwall.com/lists/oss-security/2013/01/18/2
- http://www.mandriva.com/security/advisories?name=MDVSA-2013:072
- http://www.thekelleys.org.uk/gitweb/?p=dnsmasq.git%3Ba=commitdiff%3Bh=22ce550e5346947a12a781ed0959a7b1165d0dc6