CVE-2021-45955
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
No summary for this CVE yet.
CVSS Vector Breakdown
Exploitability
AV:NAttack VectorNetwork
AC:LAttack ComplexityLow
PR:NPrivileges RequiredNone
UI:NUser InteractionNone
Scope
S:UScopeUnchanged
Impact
C:HConfidentialityHigh
I:HIntegrityHigh
A:HAvailabilityHigh
Weaknesses
Affected Products
thekelleys
oss-projectaka the kellys, thekelleys dnsmasq, dnsmasq
Сообщество свободного программного обеспечения
oss-projectaka fsf
ООО «РусБИТех-Астра»
commercial·RUaka rusbitech-astra
Simon Kelley
individual-dev
and 1 more affected products View all →
Exploitability
Official Patch Available
Attack Graph
Products CVE Techniques Tactics
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MITRE ATT&CK
2 techniques Initial Access
Privilege Escalation
References
https://github.com/google/oss-fuzz-vulns/blob/main/vulns/dnsmasq/OSV-2021-932.yaml
github.com
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=35898
bugs.chromium.org
https://lists.thekelleys.org.uk/pipermail/dnsmasq-discuss/2022q1/016162.html
lists.thekelleys.org.uk
and 6 more references View all →
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