dnsmasq is vulnerable to birthday attack. The vulnerability exist because of unsanitized check for an existing pending request for the same name and forwards a new request.
bugzilla.redhat.com/show_bug.cgi?id=1890125
lists.fedoraproject.org/archives/list/[email protected]/message/QGB7HL3OWHTLEPSMLDGOMXQKG3KM2QME/
lists.fedoraproject.org/archives/list/[email protected]/message/WYW3IR6APUSKOYKL5FT3ACTIHWHGQY32/
secdb.alpinelinux.org/v3.12/main.yaml
security.gentoo.org/glsa/202101-17
www.arista.com/en/support/advisories-notices/security-advisories/12135-security-advisory-61
www.debian.org/security/2021/dsa-4844
www.jsof-tech.com/disclosures/dnspooq/