What’s Vulnerable › Vulnerabilities

CVE-2022-1620: NULL Pointer Dereference in function vim_regexec_string at regexp.c:2729 in vim/vim

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.6% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2022-05-08 · updated 2026-10-08
• Weakness: CWE-476

Description

NULL Pointer Dereference in function vim_regexec_string at regexp.c:2729 in GitHub repository vim/vim prior to 8.2.4901. NULL Pointer Dereference in function vim_regexec_string at regexp.c:2729 allows attackers to cause a denial of service (application crash) via a crafted input.

Affected products

• Apple macOS: before 13.0 — fixed in 13.0
• Fedoraproject Fedora: 34, 35, 36
• vim/vim: before 8.2.4901 — fixed in 8.2.4901

How to fix

Upgrade to a fixed version: Apple macOS 13.0; vim/vim 8.2.4901. Check the vendor advisory for mitigations.

References

• http://seclists.org/fulldisclosure/2022/Oct/28
• http://seclists.org/fulldisclosure/2022/Oct/41
• https://github.com/vim/vim/commit/8e4b76da1d7e987d43ca960dfbc372d1c617466f
• https://huntr.dev/bounties/7a4c59f3-fcc0-4496-995d-5ca6acd2da51
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/A6BY5P7ERZS7KXSBCGFCOXLMLGWUUJIH/
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/HIP7KG7TVS5YF3QREAY2GOGUT3YUBZAI/
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JUN33257RUM4RS2I4GZETKFSAXPETATG/
• https://security.gentoo.org/glsa/202208-32
• https://security.gentoo.org/glsa/202305-16
• https://support.apple.com/kb/HT213488
• http://seclists.org/fulldisclosure/2022/Oct/28
• http://seclists.org/fulldisclosure/2022/Oct/41

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