Cloud Vulnerability DB
An open project to list all known cloud vulnerabilities and Cloud Service Provider security issues
Vulnerability DatabaseCVE-2023-39070
CVE-2023-39070:
NixOS vulnerability analysis and mitigation
Overview
An issue in Cppcheck 2.12 dev allows a local attacker to execute arbitrary code via the removeContradiction parameter in token.cpp:1934. The vulnerability was discovered in July 2023 and affects the token handling functionality in the Cppcheck static analysis tool (SourceForge Discussion, NVD).
Technical details
The vulnerability is classified as a heap use-after-free issue in the token.cpp file at line 1934, specifically in the removeContradiction function. When processing certain inputs, the code attempts to access freed memory, which can lead to arbitrary code execution. The vulnerability has a CVSS v3.1 base score of 7.8 (High) with vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H (NVD).
Impact
If exploited, this vulnerability could allow a local attacker to execute arbitrary code with the privileges of the Cppcheck process. This could potentially lead to system compromise if Cppcheck is running with elevated privileges (NVD).
Mitigation and workarounds
The Cppcheck developers recommend running the compiler first on all input to ensure it's not malformed, as implementing a full syntax checker in Cppcheck would be resource-intensive. They note that Cppcheck is intended as a developer tool for use in trusted environments (SourceForge Discussion).
Community reactions
The Cppcheck developers have indicated that they don't consider such bugs to be security issues since Cppcheck is a developer tool intended for internal usage in trusted environments. They are considering adding a security policy document to clarify what constitutes a security issue and prevent similar CVE assignments in the future (SourceForge Discussion).
Additional resources
Source: This report was generated using AI
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