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An issue was discovered in Libreswan 3.x and 4.x before 4.12. When an IKEv1 ISAKMP SA Informational Exchange packet contains a Delete/Notify payload followed by further Notifies that act on the ISAKMP SA, such as a duplicated Delete/Notify message, a NULL pointer dereference on the deleted state causes the pluto daemon to crash and restart.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Alma_linux | — | Upgrade libreswan | Nov 16, 2023 | Aug 25, 2023 |
| Alpine Linux | — | Upgrade libreswan | Aug 22, 2024 | Aug 25, 2023 |
| Amazon Linux Ami 2 | — | Upgrade libreswan-debuginfoUpgrade libreswan | Oct 23, 2023 | Aug 25, 2023 |
| Centos_linux | — | Upgrade libreswan-debuginfoUpgrade libreswan-debugsourceUpgrade libreswan | Nov 8, 2023 | Aug 25, 2023 |
| Debian | — | Upgrade libreswan | May 15, 2025 | Aug 25, 2023 |
| Oracle_linux | — | Upgrade libreswan | Nov 22, 2023 | Aug 8, 2023 |
| Redhat Openshift | — | Upgrade libreswan | Jan 10, 2025 | Aug 8, 2023 |
| Redhat_linux | — | Upgrade libreswanNo solution existsUpgrade libreswan-debuginfoUpgrade libreswan-debugsource | Nov 8, 2023 | Aug 25, 2023 |
| Rocky_linux | — | Upgrade libreswan-debuginfoUpgrade libreswanUpgrade libreswan-debugsource | May 25, 2026 | May 21, 2026 |
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