SB2023021352 - Input validation error in Dnsmasq
Published: February 13, 2023 Updated: June 8, 2025
Security Bulletin ID
SB2023021352
CSH Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Partial DoS
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Input validation error (CVE-ID: CVE-2013-0198)
CWE-ID: CWE-20 - Improper input validation
CVSSv4:
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.
References
- 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