CVE-2021-45955

Summary

CVE	CVE-2021-45955
State	PUBLIC
Assigner	[email protected]
Source Priority	CVE Program / NVD first with legacy fallback
Published	2022-01-01 00:15:00 UTC
Updated	2023-11-07 03:39:00 UTC
Description	DISPUTED 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.

Risk And Classification

Problem Types: CWE-787

NVD Known Affected Configurations (CPE 2.3)

Type	Vendor	Product	Version	Update	Edition	Language
Application	Thekelleys	Dnsmasq	2.86	All	All	All

References

Reference	Source	Link	Tags
[Dnsmasq-discuss] Open CVEs against dnsmasq	MISC	lists.thekelleys.org.uk
[Dnsmasq-discuss] [PATCH] Re: Open CVEs against dnsmasq	MISC	lists.thekelleys.org.uk
oss-fuzz-vulns/OSV-2021-932.yaml at main · google/oss-fuzz-vulns · GitHub	MISC	github.com
35898 - oss-fuzz - OSS-Fuzz: Fuzzing the planet - Monorail	MISC	bugs.chromium.org
CVE Program record	CVE.ORG	www.cve.org	canonical
NVD vulnerability detail	NVD	nvd.nist.gov	canonical, analysis

No vendor comments have been submitted for this CVE.

Legacy QID Mappings

901408 Common Base Linux Mariner (CBL-Mariner) Security Update for dnsmasq (8962)
906745 Common Base Linux Mariner (CBL-Mariner) Security Update for dnsmasq (8962-1)