Unexpected panic in multihash
High severity
GitHub Reviewed
Published
Aug 25, 2021
to the GitHub Advisory Database
•
Updated Jun 13, 2023
Description
Reviewed
Aug 19, 2021
Published to the GitHub Advisory Database
Aug 25, 2021
Last updated
Jun 13, 2023
In versions prior 0.11.3 it's possible to make from_slice panic by feeding it certain malformed input. It's never documented that from_slice (and from_bytes which wraps it) can panic, and its' return type (Result<Self, DecodeError>) suggests otherwise. In practice, from_slice/from_bytes is frequently used in networking code and is being called with unsanitized data from untrusted sources. This can allow attackers to cause DoS by causing an unexpected panic in the network client's code..
References