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VULNERABILITIES

CVE-2022-2663 Details

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.

Metrics

CVSS 3.x Severity and Vector Strings:

NIST: [email protected]CVSS-B:5.3 MEDIUMVector:CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

References to Advisories, Solutions, and Tools

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URLSource(s)Tag(s)
https://dgl.cx/2022/08/nat-again-irc-cve-2022-2663 CVEExploitThird Party Advisory
https://lists.debian.org/debian-lts-announce/2022/10/msg00000.html CVEMailing ListThird Party Advisory
https://lists.debian.org/debian-lts-announce/2022/11/msg00001.html CVEMailing ListThird Party Advisory
https://lore.kernel.org/netfilter-devel/20220826045658.100360-1-dgl%40dgl.cx/T/ CVE
https://www.debian.org/security/2022/dsa-5257 CVEThird Party Advisory

see all 14 references

Weakness Enumeration

CWE-IDCWE NameSource
CWE-923Improper Restriction of Communication Channel to Intended Endpoints[email protected]
NVD-CWE-OtherWeakness Not in a Standard CWE Category[email protected]

Affected Products

ProductVersions
linux linux kernel
All versions

CPE

  • cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*

Remediation

  • No remediation found in references.
debian debian linux
10.0
11.0

CPE

  • cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*
  • cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*

Remediation

  • No remediation found in references.

Change History

11 change records found show changes

QUICK INFO

CVE Dictionary Entry:
CVE-2022-2663
NVD Published Date:
Sep 1, 2022
NVD Last Modified:
Jun 17, 2026
Source:
[email protected]
CVE-2022-2663 Details - Not Deferred