CVE-2022-2663
MEDIUM 5.3EPSS 3.8%
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.
- Affected
- Linux kernel
- CVSS v3.1 NVD
- 5.3 MEDIUM
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N - EPSS
- 3.81% chance of exploitation in the next 30 days, 90th percentile
- Published
- 2022-09-01
- Updated
- 2026-10-14
Proof-of-concept exploits (1)
Security advisories
- https://dgl.cx/2022/08/nat-again-irc-cve-2022-2663
- https://lists.debian.org/debian-lts-announce/2022/10/msg00000.html
- https://lists.debian.org/debian-lts-announce/2022/11/msg00001.html
- https://www.debian.org/security/2022/dsa-5257
- https://www.openwall.com/lists/oss-security/2022/08/30/1