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CVE-2021-45951

CRITICAL

9.8

Description

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.

CVE Details

CVSS v3.1 Score9.8

SeverityCRITICAL

CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack VectorNETWORK

ComplexityLOW

Privileges RequiredNONE

User InteractionNONE

Published1/1/2022

Last Modified11/21/2024

Sourcenvd

Honeypot Sightings0

Affected Products

thekelleys:dnsmasq

Weaknesses (CWE)

CWE-787

References

https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=35868(cve@mitre.org)

https://github.com/google/oss-fuzz-vulns/blob/main/vulns/dnsmasq/OSV-2021-924.yaml(cve@mitre.org)

https://lists.thekelleys.org.uk/pipermail/dnsmasq-discuss/2022q1/016162.html(cve@mitre.org)

https://lists.thekelleys.org.uk/pipermail/dnsmasq-discuss/2022q1/016164.html(cve@mitre.org)

https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=35868(af854a3a-2127-422b-91ae-364da2661108)

https://github.com/google/oss-fuzz-vulns/blob/main/vulns/dnsmasq/OSV-2021-924.yaml(af854a3a-2127-422b-91ae-364da2661108)

https://lists.thekelleys.org.uk/pipermail/dnsmasq-discuss/2022q1/016162.html(af854a3a-2127-422b-91ae-364da2661108)

https://lists.thekelleys.org.uk/pipermail/dnsmasq-discuss/2022q1/016164.html(af854a3a-2127-422b-91ae-364da2661108)

IOC Correlations

No correlations recorded

This product uses data from the NVD API but is not endorsed or certified by the NVD.