CVE-2022-2663
Advisory lineage Upstream: 0 Downstream: 47
Modified
Published: 01 Sept 2022, 00:00
Last modified:03 Aug 2024, 00:46
Vulnerability Summary
Overall Risk (default)
medium
31/100 CVSS Score
5.3 MEDIUM
v3.1 (nvd)
EPSS Score
0.2% LOW
0% probability +0.04%
KEV
Not listed
Ransomware
No reports
Public exploits
2 found
Dark Web
Not detected
Timeline
01 Sept 2022, 00:00
Published
Vulnerability first disclosed
03 Aug 2024, 00:46
Last Modified
Vulnerability information updated
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.
CVSS Metrics
- v3.1•MEDIUM•Score: 5.3CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
EPSS Trends
Current EPSS score: 0.20%• Percentile: 42%
Techniques & Countermeasures
- CWE-923•Improper Restriction of Communication Channel to Intended Endpoints
The product establishes a communication channel to (or from) an endpoint for privileged or protected operations, but it does not properly ensure that it is communicating with the correct endpoint.
Affected Systems
- debian•debian_linux
10.0 | 11.0
- linux•linux_kernel
na
References (7)
- 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