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 products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
n/a Linux kernel
unknownaffected
References
- https://www.openwall.com/lists/oss-security/2022/08/30/1 ↗
- https://lore.kernel.org/netfilter-devel/20220826045658.100360-1-dgl%40dgl.cx/T/ ↗
- https://lists.debian.org/debian-lts-announce/2022/10/msg00000.html ↗
- https://dgl.cx/2022/08/nat-again-irc-cve-2022-2663 ↗
- https://www.youtube.com/watch?v=WIq-YgQuYCA ↗
- https://www.debian.org/security/2022/dsa-5257 ↗
- https://lists.debian.org/debian-lts-announce/2022/11/msg00001.html ↗
- https://cert-portal.siemens.com/productcert/html/ssa-794697.html ↗
- https://cert-portal.siemens.com/productcert/html/ssa-769027.html ↗