vulnerability

Red Hat: CVE-2023-38712: libreswan: Invalid IKEv1 repeat IKE SA delete causes crash and restart (Multiple Advisories)

Name: Red Hat: CVE-2023-38712: libreswan: Invalid IKEv1 repeat IKE SA delete causes crash and restart (Multiple Advisories)
Creator: Red Hat
Published: 2023-08-25T00:00:00.000Z
Keywords: CVE, CWE-476, Red Hat, 2023, 38712, libreswan, redhat-upgrade-libreswan, redhat-upgrade-libreswan-debuginfo, redhat-upgrade-libreswan-debugsource, Severity 7

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Severity

CVSS

(AV:N/AC:L/Au:S/C:N/I:N/A:C)

Published

Aug 25, 2023

Added

Nov 8, 2023

Modified

Mar 27, 2026

Description

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.

Solutions

redhat-upgrade-libreswanredhat-upgrade-libreswan-debuginforedhat-upgrade-libreswan-debugsource

References

CWE-476
EUVD-EUVD-2023-42487
NVD-CVE-2023-38712
REDHAT-RHSA-2023:6549
REDHAT-RHSA-2023:7052
REDHAT-RHSA-2025:0309
https://euvd.enisa.europa.eu/vulnerability/EUVD-2023-42487

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