CVE-2022-2663

Public Exploit

Description

An issue was found in the Linux kernel in nf_conntrack_irc where the message handling can be confused and incorrectly matches the message. A firewall may be able to be bypassed when users are using unencrypted IRC with nf_conntrack_irc configured.

Category

5.3
CVSS
Severity: Medium
CVSS 3.1 •
EPSS 0.19%
Vendor Advisory debian.org
Affected: n/a Linux kernel
Published at:
Updated at:

References

Link Tags
https://www.openwall.com/lists/oss-security/2022/08/30/1 third party advisory mailing list
https://lore.kernel.org/netfilter-devel/20220826045658.100360-1-dgl%40dgl.cx/T/
https://lists.debian.org/debian-lts-announce/2022/10/msg00000.html third party advisory mailing list
https://dgl.cx/2022/08/nat-again-irc-cve-2022-2663 third party advisory exploit
https://www.youtube.com/watch?v=WIq-YgQuYCA third party advisory exploit
https://www.debian.org/security/2022/dsa-5257 third party advisory vendor advisory
https://lists.debian.org/debian-lts-announce/2022/11/msg00001.html third party advisory mailing list

Frequently Asked Questions

What is the severity of CVE-2022-2663?
CVE-2022-2663 has been scored as a medium severity vulnerability.
How to fix CVE-2022-2663?
To fix CVE-2022-2663, 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-2022-2663 being actively exploited in the wild?
It is possible that CVE-2022-2663 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2022-2663?
CVE-2022-2663 affects n/a Linux kernel.
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