What is CVE-2023-38711?

CVE-2023-38711 is a medium-severity vulnerability in Libreswan, classified under NULL Pointer Dereference. CVSS score: 6.5/10. Published 2023-08-25.

How severe is CVE-2023-38711?

Medium severity. CVSS v3 base score is 6.5 out of 10.

NULL pointer dereference in Libreswan

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.

EPSS: 0.007 (49.1th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.

Affected products

Libreswan
N/a — versions n/a

Weakness classification (CWE)

CWE-476 — NULL Pointer Dereference

References

cve@mitre.org (Third Party Advisory)
cve@mitre.org (Third Party Advisory)

Frequently asked questions

What is CVE-2023-38711?: CVE-2023-38711 is a medium-severity vulnerability in Libreswan, classified under NULL Pointer Dereference. CVSS score: 6.5/10. Published 2023-08-25.
How severe is CVE-2023-38711?: Medium severity. CVSS v3 base score is 6.5 out of 10.