CVE-2020-35924 Data races in try-mutex
The try-mutex crate allows sending non-Send types across threads, potentially causing memory corruption and crashes in Rust applications.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2020-35924?
CVE-2020-35924 is a medium-severity memory corruption vulnerability in n/a, published on 31 Dec 2020. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
An issue was discovered in the try-mutex crate before 0.3.0 for Rust. TryMutex<T> allows cross-thread sending of a non-Send type.
Weakness: CWE-787
Which versions are affected by CVE-2020-35924?
3 open source packages ship an affected version, including try-mutex. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
try-mutex crates.io | All versions | 0.3.0 |
try-mutex crates.io | All versions | 0.3.0 |
try-mutex crates.io | From 0.0.0-0 | 0.3.0 |
Products include Try-Mutex Project Try-Mutex.
How do I fix CVE-2020-35924?
Upgrade try-mutex to 0.3.0 or later.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2020-35924 being exploited?
There is no known exploitation of CVE-2020-35924 in the wild and no public exploit code.
Sources
Also known as GHSA-64j8-7gp2-xjx5, RUSTSEC-2020-0087.