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VuXML IDDescription
5b5cf6e5-5b51-11eb-95ac-7f9491278677dnsmasq -- DNS cache poisoning, and DNSSEC buffer overflow, vulnerabilities

Simon Kelley reports:

There are broadly two sets of problems. The first is subtle errors in dnsmasq's protections against the chronic weakness of the DNS protocol to cache-poisoning attacks; the Birthday attack, Kaminsky, etc.[...]

the second set of errors is a good old fashioned buffer overflow in dnsmasq's DNSSEC code. If DNSSEC validation is enabled, an installation is at risk.


Discovery 2020-09-16
Entry 2021-01-20
dnsmasq
lt 2.83

dnsmasq-devel
lt 2.83

https://lists.thekelleys.org.uk/pipermail/dnsmasq-discuss/2021q1/014599.html
https://www.jsof-tech.com/disclosures/dnspooq/
CVE-2020-25684
CVE-2020-25685
CVE-2020-25686
CVE-2020-25681
CVE-2020-25682
CVE-2020-25683
CVE-2020-25687