What’s Vulnerable › Vulnerabilities

CVE-2022-1204

• Severity: medium (CVSS 5.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.4% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2022-08-29 · updated 2026-06-17
• Weakness: CWE-416

Description

A use-after-free flaw was found in the Linux kernel’s Amateur Radio AX.25 protocol functionality in the way a user connects with the protocol. This flaw allows a local user to crash the system.

Affected products

• Debian Linux: 10.0
• Fedoraproject Fedora: 34, 35
• Linux kernel: before 5.17; 5.17-rc1, 5.17-rc2 — fixed in 5.17

How to fix

Upgrade to a fixed version: Linux kernel 5.17. Check the vendor advisory for mitigations.

References

• https://access.redhat.com/security/cve/CVE-2022-1204
• https://bugzilla.redhat.com/show_bug.cgi?id=2071051
• https://security-tracker.debian.org/tracker/CVE-2022-1204
• https://www.openwall.com/lists/oss-security/2022/04/02/2
• https://access.redhat.com/security/cve/CVE-2022-1204
• https://bugzilla.redhat.com/show_bug.cgi?id=2071051
• https://security-tracker.debian.org/tracker/CVE-2022-1204
• https://www.openwall.com/lists/oss-security/2022/04/02/2

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