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crypto/tls: golang: Go crypto/tls: Denial of Service via multiple TLS 1.3 key update messages

🗓️ 26 Aug 2026 15:45:29Reported by RedHatType 
redhat
 redhat🔗 access.redhat.com👁 14 Views

Go crypto/tls DoS via multiple TLS 1.3 key update messages in a single record causing deadlock.

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OSOS VersionArchitecturePackagePackage VersionFilename
Red Hat Enterprise Linux8aarch64containernetworking-plugins1:1.4.0-7.rhaos4.15.el8containernetworking-plugins-1:1.4.0-7.rhaos4.15.el8.aarch64.rpm
Red Hat Enterprise Linux8ppc64lecontainernetworking-plugins1:1.4.0-7.rhaos4.15.el8containernetworking-plugins-1:1.4.0-7.rhaos4.15.el8.ppc64le.rpm
Red Hat Enterprise Linux8s390xcontainernetworking-plugins1:1.4.0-7.rhaos4.15.el8containernetworking-plugins-1:1.4.0-7.rhaos4.15.el8.s390x.rpm
Red Hat Enterprise Linux8x86_64containernetworking-plugins1:1.4.0-7.rhaos4.15.el8containernetworking-plugins-1:1.4.0-7.rhaos4.15.el8.x86_64.rpm
Red Hat Enterprise Linux8aarch64containernetworking-plugins-debuginfo1:1.4.0-7.rhaos4.15.el8containernetworking-plugins-debuginfo-1:1.4.0-7.rhaos4.15.el8.aarch64.rpm
Red Hat Enterprise Linux8ppc64lecontainernetworking-plugins-debuginfo1:1.4.0-7.rhaos4.15.el8containernetworking-plugins-debuginfo-1:1.4.0-7.rhaos4.15.el8.ppc64le.rpm
Red Hat Enterprise Linux8s390xcontainernetworking-plugins-debuginfo1:1.4.0-7.rhaos4.15.el8containernetworking-plugins-debuginfo-1:1.4.0-7.rhaos4.15.el8.s390x.rpm
Red Hat Enterprise Linux8x86_64containernetworking-plugins-debuginfo1:1.4.0-7.rhaos4.15.el8containernetworking-plugins-debuginfo-1:1.4.0-7.rhaos4.15.el8.x86_64.rpm
Red Hat Enterprise Linux8aarch64containernetworking-plugins-debugsource1:1.4.0-7.rhaos4.15.el8containernetworking-plugins-debugsource-1:1.4.0-7.rhaos4.15.el8.aarch64.rpm
Red Hat Enterprise Linux8ppc64lecontainernetworking-plugins-debugsource1:1.4.0-7.rhaos4.15.el8containernetworking-plugins-debugsource-1:1.4.0-7.rhaos4.15.el8.ppc64le.rpm
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09 Oct 2026 17:58Current
7.2High risk
Vulners AI Score7.2
CVSS 3.17.5
EPSS0.00621
SSVC
CWE-764
crypto/tlsTLS 1.3Denial of Servicekey updatedeadlockGo
14