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Vulnerability DatabaseCVE-2022-2982

CVE-2022-2982: 
NixOS vulnerability analysis and mitigation

Overview

CVE-2022-2982 is a heap use-after-free vulnerability discovered in Vim's qffillbuffer() function within the src/quickfix.c file, affecting versions prior to 9.0.0260. The vulnerability was identified and disclosed in August 2022, impacting various distributions of the Vim text editor (NVD, CVE).

Technical details

The vulnerability occurs when Vim uses freed memory during recursive calls to the 'quickfixtextfunc' functionality. The issue specifically manifests in the qffillbuffer() function located in the src/quickfix.c file. The problem was addressed in version 9.0.0260 by implementing a fix that prevents recursive calls to the affected function (GitHub Commit).

Impact

When exploited, this vulnerability could lead to a program crash or potentially allow for arbitrary code execution if a user is tricked into opening a specially crafted file (Red Hat CVE).

Mitigation and workarounds

The vulnerability has been fixed in Vim version 9.0.0260 and later. Users are advised to upgrade to the patched version. Various distributions have released security updates to address this issue, including Fedora (vim-9.0.412-1.fc37) and Ubuntu (2:8.2.3995-1ubuntu2.11) (Fedora Update).

Additional resources

Source: This report was generated using AI

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