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Vulnerability DatabaseCVE-2022-0240
CVE-2022-0240:
NixOS vulnerability analysis and mitigation
Overview
A NULL Pointer Dereference vulnerability was identified in mruby, tracked as CVE-2022-0240. The vulnerability was discovered and reported on January 16, 2022. This security flaw affected multiple versions of mruby, including version 2.1.2-3 and earlier releases (Debian Tracker).
Technical details
The vulnerability involves a NULL Pointer Dereference issue in the mruby codebase. The specific fix involved adding an obj->c check before the prepare_singleton_class() function call, as evidenced in the commit that addressed this vulnerability (GitHub Commit).
Impact
The vulnerability could potentially lead to application crashes due to NULL pointer dereferencing, which could affect the stability and availability of systems using the affected mruby versions (Debian Tracker).
Mitigation and workarounds
The vulnerability has been fixed in newer versions of mruby. Debian's bookworm release contains the fix in version 3.1.0-3, and subsequent versions (sid, trixie 3.3.0-1) also include the patch. Users are advised to upgrade to these fixed versions to mitigate the vulnerability (Debian Tracker).
Additional resources
Source: This report was generated using AI
Related NixOS vulnerabilities:
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