CVE-2023-2295 — HIGH (7.5) — White Hats Nepal

Vulnerability Description

A vulnerability was found in the libreswan library. This security issue occurs when an IKEv1 Aggressive Mode packet is received with only unacceptable crypto algorithms, and the response packet is not sent with a zero responder SPI. When a subsequent packet is received where the sender reuses the libreswan responder SPI as its own initiator SPI, the pluto daemon state machine crashes. No remote code execution is possible. This CVE exists because of a CVE-2023-30570 security regression for libreswan package in Red Hat Enterprise Linux 8.8 and Red Hat Enterprise Linux 9.2.

CVSS Score

7.5

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

NONE

Integrity

NONE

Availability

HIGH

Affected Products

Vendor	Product	Versions
Libreswan	Libreswan	4.9-1.el8
Redhat	Enterprise Linux	8.0
Redhat	Enterprise Linux Eus	8.8
Redhat	Enterprise Linux Server Aus	8.8
Redhat	Enterprise Linux Server Tus	8.8

Related Weaknesses (CWE)

CWE-400

References

https://access.redhat.com/errata/RHSA-2023:3107Third Party Advisory
https://access.redhat.com/errata/RHSA-2023:3148Third Party Advisory
https://access.redhat.com/security/cve/CVE-2023-2295Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2189777Issue Tracking
https://access.redhat.com/errata/RHSA-2023:3107Third Party Advisory
https://access.redhat.com/errata/RHSA-2023:3148Third Party Advisory
https://access.redhat.com/security/cve/CVE-2023-2295Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2189777Issue Tracking

FAQ

What is CVE-2023-2295?

CVE-2023-2295 is a vulnerability with a CVSS score of 7.5 (HIGH). A vulnerability was found in the libreswan library. This security issue occurs when an IKEv1 Aggressive Mode packet is received with only unacceptable crypto algorithms, and the response packet is not...

How severe is CVE-2023-2295?

CVE-2023-2295 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2023-2295?

Check the references section above for vendor advisories and patch information. Affected products include: Libreswan Libreswan, Redhat Enterprise Linux, Redhat Enterprise Linux Eus, Redhat Enterprise Linux Server Aus, Redhat Enterprise Linux Server Tus.