CVE-2020-35921 miow invalidly assumes the memory layout of std::net::SocketAddr
The miow Rust crate mishandles SocketAddr memory representation, potentially allowing attackers to cause memory corruption or crashes.
- 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-2020-35921?
CVE-2020-35921 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 miow crate before 0.3.6 for Rust. It has false expectations about the std::net::SocketAddr memory representation.
Which versions are affected by CVE-2020-35921?
3 open source packages ship an affected version, including miow. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
miow crates.io | From 0.0.0-0 | 0.2.2, 0.3.6 |
miow crates.io | From 0.3.0 | 0.3.6 |
miow crates.io | From 0.3.0 | 0.3.6 |
Products include Miow Project Miow.
How do I fix CVE-2020-35921?
Upgrade miow to a fixed version for your release line: 0.2.2 or 0.3.6.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2020-35921 being exploited?
There is no known exploitation of CVE-2020-35921 in the wild and no public exploit code.
Sources
Also known as DEBIAN-CVE-2020-35921, GHSA-jrcf-4jp8-m28v, RUSTSEC-2020-0080, UBUNTU-CVE-2020-35921.