An update for libreswan is now available for Red Hat Enterprise Linux 9.2
 Extended Update Support.

Red Hat Product Security has rated this update as having a security impact of
 Moderate. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

Libreswan is an implementation of IPsec and IKE for Linux. IPsec is the
 Internet Protocol Security and uses strong cryptography to provide both authentication and encryption services. These services allow you to build secure tunnels through untrusted networks such as virtual private network (VPN).

Security Fix(es):

* libreswan: Invalid IKEv1 Quick Mode ID causes restart (CVE-2023-38711)

* libreswan: Invalid IKEv2 REKEY proposal causes restart (CVE-2023-38710)

* libreswan: Invalid IKEv1 repeat IKE SA delete causes crash and restart
 (CVE-2023-38712)

For more details about the security issue(s), including the impact, a CVSS
 score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

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CVE-2023-38710: Reachable Assertion (CWE-617)
CVE-2023-38711: NULL Pointer Dereference (CWE-476)
CVE-2023-38712: NULL Pointer Dereference (CWE-476)