CVE-2023-38711

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.

Category

6.5
CVSS
Severity: Medium
CVSS 3.1 •
EPSS 0.06%
Third-Party Advisory github.com Third-Party Advisory libreswan.org
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://github.com/libreswan/libreswan/tags third party advisory
https://libreswan.org/security/CVE-2023-38711/ third party advisory

Frequently Asked Questions

What is the severity of CVE-2023-38711?
CVE-2023-38711 has been scored as a medium severity vulnerability.
How to fix CVE-2023-38711?
To fix CVE-2023-38711, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2023-38711 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2023-38711 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
This platform uses data from the NIST NVD, MITRE CVE, MITRE CWE, First.org and CISA KEV but is not endorsed or certified by these entities. CVE is a registred trademark of the MITRE Corporation and the authoritative source of CVE content is MITRE's CVE web site. CWE is a registred trademark of the MITRE Corporation and the authoritative source of CWE content is MITRE's CWE web site.
© 2025 Under My Watch. All Rights Reserved.