Description
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.
References (2)
Core 2
Core References
Third Party Advisory
https://github.com/libreswan/libreswan/tags
Third Party Advisory
https://libreswan.org/security/CVE-2023-38711/
Scores
CVSS v3
6.5
EPSS
0.0069
EPSS Percentile
48.1%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
no
Technical Impact
partial
Details
CWE
CWE-476
Status
published
Products (1)
libreswan/libreswan
4.6 - 4.12
Published
Aug 25, 2023
Tracked Since
Feb 18, 2026