CVE-2023-38711: Null Pointer Dereference
First published: Mon Jun 19 2023(Updated: )
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.
Credit: cve@mitre.org cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Libreswan Libreswan | >=4.6<4.12 | |
| redhat/libreswan | <4.12 | 4.12 |
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Reference Links
- https://github.com/libreswan/libreswan/tags
- https://libreswan.org/security/CVE-2023-38711/
- https://libreswan.org/security/CVE-2023-38711/CVE-2023-38711.txt
- https://libreswan.org/security/CVE-2023-38711/CVE-2023-38711.patch
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=2230238
- https://access.redhat.com/errata/RHSA-2023:6549
- https://access.redhat.com/errata/RHSA-2023:7052
- https://access.redhat.com/errata/RHSA-2024:10594
- https://bugzilla.redhat.com/show_bug.cgi?id=2215952
Frequently Asked Questions
What is CVE-2023-38711?
CVE-2023-38711 is a vulnerability in Libreswan versions before 4.12 that can cause a crash and restart of the pluto daemon when an IKEv1 Quick Mode connection receives an IDcr payload with ID_FQDN.
How severe is the CVE-2023-38711 vulnerability?
The severity of CVE-2023-38711 is high, with a CVSS severity score of 7.5.
Which versions of Libreswan are affected by CVE-2023-38711?
Libreswan versions from 4.6 to 4.12 are affected by CVE-2023-38711.
How can I fix the CVE-2023-38711 vulnerability?
To fix CVE-2023-38711, update Libreswan to version 4.12 or later.
Where can I find more information about CVE-2023-38711?
You can find more information about CVE-2023-38711 on the Libreswan GitHub page and the Libreswan security advisory page.
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