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CVE-2021-45955

CRITICAL CVSS: 9.8 Published: 2022-01-01 Modified: 2026-06-17

Description

Dnsmasq 2.86 has a heap-based buffer overflow in resize_packet (called from FuzzResizePacket and fuzz_rfc1035.c) because of the lack of a proper bounds check upon pseudo header re-insertion. 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." However, a contributor states that a security patch (mentioned in 016162.html) is needed

Affected Platforms

Thekelleys Dnsmasq

Weakness Type

CWE-787

References