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Vulnerability DatabaseCVE-2022-2862
CVE-2022-2862:
NixOS vulnerability analysis and mitigation
Overview
CVE-2022-2862 is a Use-After-Free vulnerability discovered in the GitHub repository vim/vim affecting versions prior to 9.0.0221. The vulnerability was identified in the vim9instr.c file, specifically in the generate_PCALL() function (VIM Commit, NVD).
Technical details
The vulnerability is classified as a Use-After-Free (CWE-416) issue with a CVSS v3.1 base score of 7.8 (HIGH), with the vector string CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H. The issue occurs when compiling nested functions fails, leading to potential access of freed memory (NVD).
Impact
If successfully exploited, this vulnerability could allow an attacker to cause the application to crash or potentially execute arbitrary code. The vulnerability affects the integrity, confidentiality, and availability of the system, with all three impact metrics rated as High (NVD).
Mitigation and workarounds
The vulnerability was fixed in vim version 9.0.0221. The solution involves modifying the variable name handling to prevent it from being found after being freed. Users are advised to upgrade to version 9.0.0221 or later (VIM Commit, Debian Tracker).
Additional resources
Source: This report was generated using AI
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