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resolv: Denial of Service in resolv gem

🗓️ 22 Dec 2025 16:49:49Reported by RedHatType 
redhat
 redhat
🔗 access.redhat.com👁 5 Views

Denial of service in resolv ruby gem via crafted DNS packets with highly compressed domain names causing CPU exhaustion.

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OSOS VersionArchitecturePackagePackage VersionFilename
Red Hat Enterprise Linux10.0aarch64ruby3.3.10-11.el10_0ruby-3.3.10-11.el10_0.aarch64.rpm
Red Hat Enterprise Linux10.0ppc64leruby3.3.10-11.el10_0ruby-3.3.10-11.el10_0.ppc64le.rpm
Red Hat Enterprise Linux10.0s390xruby3.3.10-11.el10_0ruby-3.3.10-11.el10_0.s390x.rpm
Red Hat Enterprise Linux10.0x86_64ruby3.3.10-11.el10_0ruby-3.3.10-11.el10_0.x86_64.rpm
Red Hat Enterprise Linux10.0aarch64ruby-bundled-gems3.3.10-11.el10_0ruby-bundled-gems-3.3.10-11.el10_0.aarch64.rpm
Red Hat Enterprise Linux10.0ppc64leruby-bundled-gems3.3.10-11.el10_0ruby-bundled-gems-3.3.10-11.el10_0.ppc64le.rpm
Red Hat Enterprise Linux10.0s390xruby-bundled-gems3.3.10-11.el10_0ruby-bundled-gems-3.3.10-11.el10_0.s390x.rpm
Red Hat Enterprise Linux10.0x86_64ruby-bundled-gems3.3.10-11.el10_0ruby-bundled-gems-3.3.10-11.el10_0.x86_64.rpm
Red Hat Enterprise Linux10.0aarch64ruby-bundled-gems-debuginfo3.3.10-11.el10_0ruby-bundled-gems-debuginfo-3.3.10-11.el10_0.aarch64.rpm
Red Hat Enterprise Linux10.0ppc64leruby-bundled-gems-debuginfo3.3.10-11.el10_0ruby-bundled-gems-debuginfo-3.3.10-11.el10_0.ppc64le.rpm
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30 Jun 2026 00:39Current
5.7Medium risk
Vulners AI Score5.7
CVSS 3.17.5
EPSS0.00539
SSVC
5