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Vulnerability DatabaseCVE-2022-25051

CVE-2022-25051: 
NixOS vulnerability analysis and mitigation

Overview

CVE-2022-25051 is a vulnerability discovered in rtl433 version 21.12, specifically affecting the cmr113decode functionality. The vulnerability was identified as an Off-by-one Error that occurs when decoding a crafted file (NVD, CVE).

Technical details

The vulnerability is characterized by an Off-by-one Error in the cmr113decode function of rtl433 21.12. The issue was specifically related to the calculation of COMPAREBYTES, which was incorrectly defined as COMPAREBITS/8 instead of (COMPAREBITS + 7) / 8, potentially leading to buffer overflow conditions ([GitHub Commit](https://github.com/merbanan/rtl433/commit/2dad7b9fc67a1d0bfbe520fbd821678b8f8cc7a8)).

Impact

The vulnerability could potentially lead to buffer overflow conditions when processing crafted files, which might affect the integrity and security of systems using the affected rtl_433 version.

Mitigation and workarounds

A fix has been implemented in the rtl433 codebase through a commit that corrects the COMPAREBYTES calculation to properly handle the bit-to-byte conversion using (COMPAREBITS + 7) / 8 ([GitHub Commit](https://github.com/merbanan/rtl433/commit/2dad7b9fc67a1d0bfbe520fbd821678b8f8cc7a8)).

Additional resources

Source: This report was generated using AI

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