tinytag is a Python library for reading audio file metadata. From 2.0.0 until 2.3.0, an M4A file containing a sub-atom with a size of zero inside a ---- atom can cause the metadata parser to stop advancing through the input. The custom-field atom traversal repeatedly processes the malformed location, causing an infinite loop and denying service to a program that reads the crafted file.
This issue is fixed in version 2.3.0.
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)
References 4
https://github.com/tinytag/tinytag/commit/9ada221ba44990cb02cd9002d992186e037b5…
security-advisories@github.com
https://github.com/tinytag/tinytag/pull/326
security-advisories@github.com
https://github.com/tinytag/tinytag/releases/tag/2.3.0
security-advisories@github.com
https://github.com/tinytag/tinytag/security/advisories/GHSA-24cc-9352-h2pg
security-advisories@github.com