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CVE-2021-45955
CRITICAL9.8
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
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=35898(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)
IOC Correlations
No correlations recorded
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