CVE-2022-2042
NixOS vulnerability analysis and mitigation

Overview

CVE-2022-2042 is a use-after-free vulnerability discovered in Vim's skipwhite() function in the src/charset.c file prior to version 8.2. The vulnerability was disclosed on June 10, 2022 (NVD, Ubuntu).

Technical details

The vulnerability is a heap use-after-free issue that occurs in the skipwhite() function located in src/charset.c. The flaw was fixed in Vim version 8.2.5072 by initializing the 'attr' variable and implementing early checks for empty lines (GitHub Commit).

Impact

The vulnerability could allow an attacker to cause unexpected application termination or potentially execute arbitrary code through processing maliciously crafted input (Gentoo).

Mitigation and workarounds

The vulnerability was patched in Vim version 8.2.5072. Users should upgrade to this version or later to mitigate the issue. Multiple distributions have released security updates including Ubuntu, which has fixed versions available for various releases (Ubuntu).

Additional resources


SourceThis report was generated using AI

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