tinytag is a Python library for reading audio file metadata. Version 2.2.0 allows an attacker who can supply MP3 files for parsing to trigger a non-terminating loop while the library parses an ID3v2 SYLT (synchronized lyrics) frame. In server-side deployments that automatically parse attacker-supplied files, a single 498-byte MP3 can cause the parsing operation to stop making progress and remain busy until the worker or process is terminated.
The root cause is that _parse_synced_lyrics assumes _find_string_end_pos always returns a position greater than the current offset. That assumption is false when no string terminator is present in the remaining frame content. This issue has been fixed in version 2.2.1.
Attack Parameters
Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Privileges Required
None
No privileges needed
User Interaction
Required
User action required
Impact Assessment
Confidentiality
None
No data leak
Integrity
None
No data modification
Availability
High
Complete denial of service
CVSS Vector v3.1
Weakness Type (CWE)
Vulnerable Products 1
| Configuration | From (including) | Up to (excluding) |
|---|---|---|
|
Tinytag_Project Tinytag
cpe:2.3:a:tinytag_project:tinytag:2.2.0:*:*:*:*:python:*:*
|
— | — |
References 4
https://github.com/tinytag/tinytag/commit/44e496310f7ced8077e9087e3774acbaa324b…
security-advisories@github.com
https://github.com/tinytag/tinytag/commit/4d649b9c314ada8ff8a74e0469e9aadb3acb2…
security-advisories@github.com
https://github.com/tinytag/tinytag/commit/5cd321521ff097e41724b601d7e3d7adc7e53…
security-advisories@github.com
https://github.com/tinytag/tinytag/security/advisories/GHSA-f4rq-2259-hv29
security-advisories@github.com