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libreswan: Invalid IKEv1 repeat IKE SA delete causes crash and restart

🗓️ 14 Nov 2023 15:51:00Reported by RedHatType 
redhat
 redhat
🔗 access.redhat.com👁 5 Views

Libreswan Internet Key Exchange processing of Delete Notify leads to a null pointer dereference, crashing the Pluto daemon and enabling denial of service.

Related
Packages
Refs
OSOS VersionArchitecturePackagePackage VersionFilename
Red Hat Enterprise Linux8aarch64libreswan4.12-2.el8libreswan-4.12-2.el8.aarch64.rpm
Red Hat Enterprise Linux8ppc64lelibreswan4.12-2.el8libreswan-4.12-2.el8.ppc64le.rpm
Red Hat Enterprise Linux8s390xlibreswan4.12-2.el8libreswan-4.12-2.el8.s390x.rpm
Red Hat Enterprise Linux8x86_64libreswan4.12-2.el8libreswan-4.12-2.el8.x86_64.rpm
Red Hat Enterprise Linux8aarch64libreswan-debuginfo4.12-2.el8libreswan-debuginfo-4.12-2.el8.aarch64.rpm
Red Hat Enterprise Linux8ppc64lelibreswan-debuginfo4.12-2.el8libreswan-debuginfo-4.12-2.el8.ppc64le.rpm
Red Hat Enterprise Linux8s390xlibreswan-debuginfo4.12-2.el8libreswan-debuginfo-4.12-2.el8.s390x.rpm
Red Hat Enterprise Linux8x86_64libreswan-debuginfo4.12-2.el8libreswan-debuginfo-4.12-2.el8.x86_64.rpm
Red Hat Enterprise Linux8aarch64libreswan-debugsource4.12-2.el8libreswan-debugsource-4.12-2.el8.aarch64.rpm
Red Hat Enterprise Linux8ppc64lelibreswan-debugsource4.12-2.el8libreswan-debugsource-4.12-2.el8.ppc64le.rpm
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28 Jan 2026 18:58Current
5.8Medium risk
Vulners AI Score5.8
CVSS 3.16.5
EPSS0.00691
5