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resolv: resolv gem: Denial of Service via uncontrolled memory growth from crafted DNS responses

🗓️ 02 Oct 2026 11:21:12Reported by RedHatType 
redhat
 redhat🔗 access.redhat.com👁 4 Views

Denial of Service in the resolv gem via memory growth from crafted DNS responses.

Related
Packages
Refs
ReporterTitlePublishedViews
Family
nessus
Tenable Nessus		Amazon Linux 2023 : ruby4.0, ruby4.0-bundled-gems, ruby4.0-default-gems (ALAS2023-2026-2144)
14 Sep 202600:00
–nessus
nessus
Tenable Nessus		Amazon Linux 2023 : ruby3.4, ruby3.4-bundled-gems, ruby3.4-default-gems (ALAS2023-2026-2145)
14 Sep 202600:00
–nessus
nessus
Tenable Nessus		Rocky Linux 10.2 [CIQ] Security Update: ruby4.0 / ruby4.0-debuginfo / ruby4.0-debugsource / ruby4.0-devel / etc (crlsa-2026_72427)
1 Oct 202600:00
–nessus
nessus
Tenable Nessus		Rocky Linux 8 [CIQ] Security Update: ruby / ruby-bundled-gems / ruby-bundled-gems-debuginfo / etc (crlsa-2026_72285)
1 Oct 202600:00
–nessus
nessus
Tenable Nessus		Rocky Linux 8 [CIQ] Security Update: ruby / ruby-debuginfo / ruby-debugsource / ruby-devel / ruby-doc / etc Multiple Vulnerabilities (crlsa-2026_73519)
1 Oct 202600:00
–nessus
nessus
Tenable Nessus		Rocky Linux 9 [CIQ] Security Update: ruby / ruby-debuginfo / ruby-debugsource / ruby-default-gems / etc (crlsa-2026_72286)
1 Oct 202600:00
–nessus
nessus
Tenable Nessus		Rocky Linux 9 [CIQ] Security Update: ruby / ruby-bundled-gems / ruby-bundled-gems-debuginfo / etc (crlsa-2026_72484)
1 Oct 202600:00
–nessus
nessus
Tenable Nessus		Rocky Linux 9 [CIQ] Security Update: ruby / ruby-bundled-gems / ruby-bundled-gems-debuginfo / etc (crlsa-2026_72485)
1 Oct 202600:00
–nessus
nessus
Tenable Nessus		Fedora 44 : rubygems (2026-2857104379)
15 Sep 202600:00
–nessus
nessus
Tenable Nessus		Fedora 45 : rubygems (2026-9831a751e2)
15 Sep 202600:00
–nessus
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OSOS VersionArchitecturePackagePackage VersionFilename
Red Hat Enterprise Linux10.2aarch64ruby3.3.12-15.el10_2ruby-3.3.12-15.el10_2.aarch64.rpm
Red Hat Enterprise Linux10.2ppc64leruby3.3.12-15.el10_2ruby-3.3.12-15.el10_2.ppc64le.rpm
Red Hat Enterprise Linux10.2s390xruby3.3.12-15.el10_2ruby-3.3.12-15.el10_2.s390x.rpm
Red Hat Enterprise Linux10.2x86_64ruby3.3.12-15.el10_2ruby-3.3.12-15.el10_2.x86_64.rpm
Red Hat Enterprise Linux10.2aarch64ruby-bundled-gems3.3.12-15.el10_2ruby-bundled-gems-3.3.12-15.el10_2.aarch64.rpm
Red Hat Enterprise Linux10.2ppc64leruby-bundled-gems3.3.12-15.el10_2ruby-bundled-gems-3.3.12-15.el10_2.ppc64le.rpm
Red Hat Enterprise Linux10.2s390xruby-bundled-gems3.3.12-15.el10_2ruby-bundled-gems-3.3.12-15.el10_2.s390x.rpm
Red Hat Enterprise Linux10.2x86_64ruby-bundled-gems3.3.12-15.el10_2ruby-bundled-gems-3.3.12-15.el10_2.x86_64.rpm
Red Hat Enterprise Linux10.2aarch64ruby-bundled-gems-debuginfo3.3.12-15.el10_2ruby-bundled-gems-debuginfo-3.3.12-15.el10_2.aarch64.rpm
Red Hat Enterprise Linux10.2ppc64leruby-bundled-gems-debuginfo3.3.12-15.el10_2ruby-bundled-gems-debuginfo-3.3.12-15.el10_2.ppc64le.rpm
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02 Oct 2026 17:35Current
5.7Medium risk
Vulners AI Score5.7
CVSS 3.17.5
EPSS0.00401
CWE-770
resolv gemDenial of Servicememory growthDNS responsesSvcParamKeys
4