CVE-2020-36210 Free of uninitialized memory in autorand
Attackers can trigger memory corruption via uninitialized memory drops during panics in the Rust autorand crate, potentially leading to code execution 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-2020-36210?
CVE-2020-36210 is a high-severity memory corruption vulnerability in n/a, published on 22 Jan 2021. 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 autorand crate before 0.2.3 for Rust. Because of impl Random on arrays, uninitialized memory can be dropped when a panic occurs, leading to memory corruption.
Which versions are affected by CVE-2020-36210?
3 open source packages ship an affected version, including autorand. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
autorand crates.io | All versions | 0.2.3 |
autorand crates.io | All versions | 0.2.3 |
autorand crates.io | From 0.0.0-0 | 0.2.3 |
Products include Autorand Project Autorand.
How do I fix CVE-2020-36210?
Upgrade autorand to 0.2.3 or later.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2020-36210 being exploited?
There is no known exploitation of CVE-2020-36210 in the wild and no public exploit code.
Sources
Also known as GHSA-cgmg-2v6m-fjg7, RUSTSEC-2020-0103.