cve-2021-3448
Vulnerability from cvelistv5
Published
2021-04-08 22:06
Modified
2024-08-03 16:53
Severity ?
Summary
A flaw was found in dnsmasq in versions before 2.85. When configured to use a specific server for a given network interface, dnsmasq uses a fixed port while forwarding queries. An attacker on the network, able to find the outgoing port used by dnsmasq, only needs to guess the random transmission ID to forge a reply and get it accepted by dnsmasq. This flaw makes a DNS Cache Poisoning attack much easier. The highest threat from this vulnerability is to data integrity.
Impacted products
n/adnsmasq
Show details on NVD website


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