Vulnerabilities > CVE-2021-45951 - Out-of-bounds Write vulnerability in Thekelleys Dnsmasq 2.86

047910
CVSS 9.8 - CRITICAL
Attack vector
NETWORK
Attack complexity
LOW
Privileges required
NONE
Confidentiality impact
HIGH
Integrity impact
HIGH
Availability impact
HIGH
network
low complexity
thekelleys
CWE-787
critical

Summary

Dnsmasq 2.86 has a heap-based buffer overflow in check_bad_address (called from check_for_bogus_wildcard and FuzzCheckForBogusWildcard). NOTE: the vendor's position is that CVE-2021-45951 through CVE-2021-45957 "do not represent real vulnerabilities, to the best of our knowledge.

Vulnerable Configurations

Part Description Count
Application
Thekelleys
1

Common Weakness Enumeration (CWE)