CVEvulnerability
CVE-2022-2663
5.3 MEDIUM
Official page ↗
- Status
- Modified
- Published
- 2022-09-01
- Last modified
- 2026-10-14
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 5.3 MEDIUM — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
- Weaknesses
- CWE-923
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.
Affected configurations
• linux linux kernel
• debian debian linux 10.0
• debian debian linux 11.0
Related
Weakness · CWE (1)
- CWE-923 Improper Restriction of Communication Channel to Intended Endpoints weakness
References
- https://dgl.cx/2022/08/nat-again-irc-cve-2022-2663 Exploit, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2022/10/msg00000.html Mailing List, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2022/11/msg00001.html Mailing List, Third Party Advisory
- https://lore.kernel.org/netfilter-devel/20220826045658.100360-1-dgl%40dgl.cx/T/ lore.kernel.org
- https://www.debian.org/security/2022/dsa-5257 Third Party Advisory
- https://www.openwall.com/lists/oss-security/2022/08/30/1 Mailing List, Third Party Advisory
- https://www.youtube.com/watch?v=WIq-YgQuYCA Exploit, Third Party Advisory
- https://dgl.cx/2022/08/nat-again-irc-cve-2022-2663 Exploit, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2022/10/msg00000.html Mailing List, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2022/11/msg00001.html Mailing List, Third Party Advisory
- https://lore.kernel.org/netfilter-devel/20220826045658.100360-1-dgl%40dgl.cx/T/ lore.kernel.org
- https://www.debian.org/security/2022/dsa-5257 Third Party Advisory
- https://www.openwall.com/lists/oss-security/2022/08/30/1 Mailing List, Third Party Advisory
- https://www.youtube.com/watch?v=WIq-YgQuYCA Exploit, Third Party Advisory
- https://cert-portal.siemens.com/productcert/html/ssa-769027.html cert-portal.siemens.com
- https://cert-portal.siemens.com/productcert/html/ssa-794697.html cert-portal.siemens.com