Advisories

dnsmasq-utils 2.79-1 - 'dhcp_release' Denial of Service

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severity
critical
date
Affecting
  • dnsmasq-utils <= 2.79

CWE
  • CWE-121 Stack-based Buffer Overflow
CVSS
6.9
CVSS V4 Vector
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
Credit
Josue Encinar
Description
Dnsmasq-utils 2.79-1 contains a buffer overflow vulnerability in the dhcp_release utility that allows attackers to cause a denial of service by supplying excessive input. Attackers can trigger a core dump and terminate the dhcp_release process by sending a crafted input string longer than 16 characters.

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