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Vulnerability DatabaseCVE-2022-1674
CVE-2022-1674:
NixOS vulnerability analysis and mitigation
Overview
A NULL pointer dereference vulnerability was discovered in the vimregexecstring() function at regexp.c:2733 in GitHub repository vim/vim prior to version 8.2.4938. The vulnerability was disclosed on May 12, 2022 and affects the Vim text editor (NVD, Red Hat).
Technical details
The vulnerability occurs in the vimregexecstring() function when attempting to match a buffer with an invalid pattern. The issue arises when the function tries to process a NULL regprog pointer, which can lead to a crash. This was fixed by adding a NULL pointer check before accessing the regprog (GitHub Commit).
Impact
When exploited, this vulnerability can cause a denial of service through application crash when processing specially crafted input (Red Hat).
Mitigation and workarounds
The vulnerability was patched in Vim version 8.2.4938. Users should upgrade to this version or later. For specific distributions, security updates were released: Fedora 34 (vim-8.2.4975-1.fc34), Fedora 35 (vim-8.2.4975-1.fc35), and Fedora 36 (vim-8.2.4969-1.fc36) (Fedora Updates).
Additional resources
Source: This report was generated using AI
Related NixOS vulnerabilities:
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