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dnsmasq: dnsmasq: heap buffer overflow in cache via NAME_ESCAPE expansion

🗓️ 26 May 2026 05:09:20Reported by RedHatType 
redhat
 redhat
🔗 access.redhat.com👁 14 Views

Dnsmasq cache overflow from NAME_ESCAPE expansion in DNS responses, risking crash or poisoning.

Related
Packages
Refs
OSOS VersionArchitecturePackagePackage VersionFilename
Red Hat Enterprise Linux8.10aarch64dnsmasq2.79-36.el8_10dnsmasq-2.79-36.el8_10.aarch64.rpm
Red Hat Enterprise Linux8.10ppc64lednsmasq2.79-36.el8_10dnsmasq-2.79-36.el8_10.ppc64le.rpm
Red Hat Enterprise Linux8.10s390xdnsmasq2.79-36.el8_10dnsmasq-2.79-36.el8_10.s390x.rpm
Red Hat Enterprise Linux8.10x86_64dnsmasq2.79-36.el8_10dnsmasq-2.79-36.el8_10.x86_64.rpm
Red Hat Enterprise Linux8.10aarch64dnsmasq-debuginfo2.79-36.el8_10dnsmasq-debuginfo-2.79-36.el8_10.aarch64.rpm
Red Hat Enterprise Linux8.10ppc64lednsmasq-debuginfo2.79-36.el8_10dnsmasq-debuginfo-2.79-36.el8_10.ppc64le.rpm
Red Hat Enterprise Linux8.10s390xdnsmasq-debuginfo2.79-36.el8_10dnsmasq-debuginfo-2.79-36.el8_10.s390x.rpm
Red Hat Enterprise Linux8.10x86_64dnsmasq-debuginfo2.79-36.el8_10dnsmasq-debuginfo-2.79-36.el8_10.x86_64.rpm
Red Hat Enterprise Linux8.10aarch64dnsmasq-debugsource2.79-36.el8_10dnsmasq-debugsource-2.79-36.el8_10.aarch64.rpm
Red Hat Enterprise Linux8.10ppc64lednsmasq-debugsource2.79-36.el8_10dnsmasq-debugsource-2.79-36.el8_10.ppc64le.rpm
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16 Jul 2026 08:09Current
6Medium risk
Vulners AI Score6
CVSS 3.17.3
EPSS0.00754
SSVC
14