Ecosyste.ms: Advisories

Security Advisories: MDE2OlNlY3VyaXR5QWR2aXNvcnlHSFNBLTg4OTItODR3Zi1jZzhm

SyncChannel<T> can move 'T: !Send' to other threads

Affected versions of this crate unconditionally implement Send/Sync for SyncChannel<T>. SyncChannel<T> doesn't provide access to &T but merely serves as a channel that consumes and returns owned T. Users can create UB in safe Rust by sending T: !Send to other threads with SyncChannel::send/recv APIs. Using T = Arc<Cell<_> allows to create data races (which can lead to memory corruption), and using T = MutexGuard<T> allows to unlock a mutex from a thread that didn't lock the mutex.

Permalink: https://github.com/advisories/GHSA-8892-84wf-cg8f
JSON: https://advisories.ecosyste.ms/api/v1/advisories/MDE2OlNlY3VyaXR5QWR2aXNvcnlHSFNBLTg4OTItODR3Zi1jZzhm
Source: GitHub Advisory Database
Origin: Unspecified
Severity: High
Classification: General
Published: over 3 years ago
Updated: over 1 year ago

CVSS Score: 8.1
CVSS vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Identifiers: GHSA-8892-84wf-cg8f
References:

• https://github.com/kitsuneninetails/signal-rust/issues/2
• https://rustsec.org/advisories/RUSTSEC-2020-0126.html
• https://github.com/advisories/GHSA-8892-84wf-cg8f

Repository: https://github.com/kitsuneninetails/signal-rust
Blast Radius: 1.0

Affected Packages