What’s Vulnerable › Vulnerabilities

CVE-2022-0617

• Severity: medium (CVSS 5.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.5% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2022-02-16 · updated 2026-06-17
• Weakness: CWE-476

Description

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 Linux: 9.0, 10.0, 11.0
• Linux kernel: from 4.2.1 before 5.17; 4.2-rc1, 4.2-rc2, 4.2-rc3, 4.2-rc4, 4.2-rc5, 4.2-rc6 (+6) — fixed in 5.17

How to fix

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

References

• http://www.openwall.com/lists/oss-security/2022/04/13/2
• https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=7fc3b7c2981bbd1047916ade327beccb90994eee
• https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=ea8569194b43f0f01f0a84c689388542c7254a1f
• https://lists.debian.org/debian-lts-announce/2022/03/msg00011.html
• https://lists.debian.org/debian-lts-announce/2022/03/msg00012.html
• https://lore.kernel.org/lkml/20220114172329.ygzry5rlz64ua2nr%40quack3.lan/T/
• https://www.debian.org/security/2022/dsa-5095
• https://www.debian.org/security/2022/dsa-5096
• http://www.openwall.com/lists/oss-security/2022/04/13/2
• https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=7fc3b7c2981bbd1047916ade327beccb90994eee
• https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=ea8569194b43f0f01f0a84c689388542c7254a1f
• https://lists.debian.org/debian-lts-announce/2022/03/msg00011.html

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