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CVE-2021-45955

CRITICAL

9.8

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

Details CVE

Score CVSS v3.19.8

SeveriteCRITICAL

Vecteur CVSSCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Vecteur d'attaqueNETWORK

ComplexiteLOW

Privileges requisNONE

Interaction utilisateurNONE

Publie1/1/2022

Derniere modification11/21/2024

Sourcenvd

Observations honeypot0

Produits affectes

thekelleys:dnsmasq

Faiblesses (CWE)

CWE-787

References

https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=35898(cve@mitre.org)

https://github.com/google/oss-fuzz-vulns/blob/main/vulns/dnsmasq/OSV-2021-932.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=35898(af854a3a-2127-422b-91ae-364da2661108)

https://github.com/google/oss-fuzz-vulns/blob/main/vulns/dnsmasq/OSV-2021-932.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)

Correlations IOC

Aucune correlation enregistree

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