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GHSA-927q-g9w9-pm54

GHSA-927q-g9w9-pm54: Panic in mp3-metadata due to the lack of bounds checking

The get_id3() methods used by mp3_metadata::read_from_slice() does not perform adequate bounds checking when recreating the tag due to the use of desynchronization.

Fixed in Fix index error, released as part of 0.4.0.

(GitHub Advisory)

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GHSA-927q-g9w9-pm54

GHSA-927q-g9w9-pm54:

N/A

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Technical Details

Package Name	Ecosystem	Vulnerable Versions	First Patched Version
mp3-metadata	rust	< 0.4.0	0.4.0

Technical Details

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Root Cause Analysis

The vulnerability, a panic due to lack of bounds checking, is primarily located in the get_id3 function in src/metadata.rs. The patch diff clearly shows the addition of a bounds check (v.get_mut(new_pos)) before a write operation (v[new_pos] = 0xFF;) that was previously unchecked. This directly pinpoints get_id3 as the function containing the flawed logic. The vulnerability description explicitly states that get_id3 is used by mp3_metadata::read_from_slice(). read_from_slice is a public function that takes the raw byte input and initiates the parsing process which includes calling get_id3. Therefore, read_from_slice is the function that handles potentially malicious input and would be on the call stack leading to the panic. Both functions are critical for understanding the vulnerability's trigger and location.

Vulnerable functions

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WAF Protection Rules

WAF Rule

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Reasoning

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