Improper Restriction of Communication Channel to Intended Endpoints Affecting linux-qemu-6.18 package, versions <6.18.10-r0


Severity

Recommended
0.0
medium
0
10

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Threat Intelligence

EPSS
0.18% (40th percentile)

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  • Snyk IDSNYK-CHAINGUARDLATEST-LINUXQEMU618-15043941
  • published21 Jan 2026
  • disclosed1 Sept 2022

Introduced: 1 Sep 2022

CVE-2022-2663  (opens in a new tab)
CWE-923  (opens in a new tab)

How to fix?

Upgrade Chainguard linux-qemu-6.18 to version 6.18.10-r0 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream linux-qemu-6.18 package and not the linux-qemu-6.18 package as distributed by Chainguard. See How to fix? for Chainguard relevant fixed versions and status.

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 Base Scores

version 3.1