CVE-2022-0617: Debian Linux

Medium severity, CVSS 5.5. EPSS: 0.5% chance of exploitation in the next 30 days.

A flaw null pointer dereference in the Linux kernel UDF file system functionality was found in the way user triggers udf_file_write_iter function for the malicious UDF image. A local user could use this flaw to crash the system. Actual from Linux kernel 4.2-rc1 till 5.17-rc2.

Affected products

• Debian Debian Linux: version 9.0 only; version 10.0 only; version 11.0 only
• Linux Linux Kernel: from 4.2.1, before 5.17 (fixed in 5.17); version 4.2 only; version 4.2.0 only; version 5.17 only

Published 2022-02-16. Last modified 2026-06-17.