#VU63013 Use-after-free in Dnsmasq - CVE-2022-0934

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Main Vulnerability Database Vulnerabilities #VU63013

#VU63013 Use-after-free in Dnsmasq - CVE-2022-0934

Published: May 11, 2022 / Updated: June 8, 2025


Vulnerability identifier: #VU63013
Vulnerability risk: Medium
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2022-0934
CWE-ID: CWE-416
Exploitation vector: Remote access
Exploit availability: No public exploit available
Vulnerable software:
Dnsmasq
Software vendor:
GNU

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to a use-after-free error when handling DHCPv6 requests. A remote attacker can send specially crafted DHCPv6 packets to the affected application, trigger a use-after-free error and perform a denial of service (DoS) attack.



Remediation

Install update from vendor's website.

External links