MEDIUM 6.5 Microsoft

CVE-2023-38711

An issue was discovered in Libreswan before 4.12. When an IKEv1 Quick Mode connection configured with ID_IPV4_ADDR or ID_IPV6_ADDR receives an IDcr payload with ID_FQDN a NULL pointer dereference causes a crash and restart of the pluto daemon. NOTE: the earliest affected version is 4.6.

Microsoft Security Update 2023-Aug: An issue was discovered in Libreswan before 4.12. When an IKEv1 Quick Mode connection configured with ID_IPV4_ADDR or ID_IPV6_ADDR receives an IDcr payload with ID_FQDN a NULL pointer dereference causes a crash and restart of the pluto daemon. NOTE: the earliest affected version is 4.6.

Affected Products

References

Published: 2023-08-08 · Source: Microsoft · Feed updated: 2026-08-14
This medium severity vulnerability with a CVSS score of 6.5 was published on 2023-08-08 via Microsoft. Affected: azl3 libreswan 4.7-7 on Azure Linux 3.0, cbl2 libreswan 4.7-5 on CBL Mariner 2.0, azl3 libreswan 4.7-6 on Azure Linux 3.0.
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