CVE-2023-2295

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.

Category

7.5
CVSS
Severity: High
CVSS 3.1 •
EPSS 1.26% Top 25%
Third-Party Advisory redhat.com Third-Party Advisory redhat.com Third-Party Advisory redhat.com
Affected: n/a libreswan
Published at:
Updated at:

References

Link Tags
https://bugzilla.redhat.com/show_bug.cgi?id=2189777 issue tracking
https://access.redhat.com/security/cve/CVE-2023-2295 third party advisory
https://access.redhat.com/errata/RHSA-2023:3107 third party advisory
https://access.redhat.com/errata/RHSA-2023:3148 third party advisory

Frequently Asked Questions

What is the severity of CVE-2023-2295?
CVE-2023-2295 has been scored as a high severity vulnerability.
How to fix CVE-2023-2295?
To fix CVE-2023-2295, 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-2023-2295 being actively exploited in the wild?
It is possible that CVE-2023-2295 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~1% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2023-2295?
CVE-2023-2295 affects n/a libreswan.
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