matrix-rust-sdk is an implementation of a Matrix client-server library in Rust. The `UserIdentity::is_verified()` method in the matrix-sdk-crypto crate before version 0.7.2 doesn't take into account the verification status of the user's own identity while performing the check and may as a result return a value contrary to what is implied by its name and documentation. If the method is used to decide whether to perform sensitive operations towards a user identity, a malicious homeserver could manipulate the outcome in order to make the identity appear trusted. This is not a typical usage of the method, which lowers the impact. The method itself is not used inside the `matrix-sdk-crypto` crate. The 0.7.2 release of the `matrix-sdk-crypto` crate includes a fix. All users are advised to upgrade. There are no known workarounds for this vulnerability.
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Status: PUBLISHED
Assigner: GitHub_M
Published: 2024-07-18T16:45:56.321Z
Updated: 2024-08-02T04:33:11.826Z
Reserved: 2024-07-08T16:13:15.513Z
Link: CVE-2024-40648

Updated: 2024-07-18T17:48:43.752Z

Status : Awaiting Analysis
Published: 2024-07-18T17:15:05.427
Modified: 2024-11-21T09:31:25.720
Link: CVE-2024-40648

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