Description
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.
Problem types
CWE-835: Loop with Unreachable Exit Condition ('Infinite Loop')
Product status
References
github.com/...inytag/security/advisories/GHSA-f4rq-2259-hv29
github.com/...ommit/44e496310f7ced8077e9087e3774acbaa324b18a
github.com/...ommit/4d649b9c314ada8ff8a74e0469e9aadb3acb252a
github.com/...ommit/5cd321521ff097e41724b601d7e3d7adc7e53402