CVE-2020-35894 Unaligned references in Obstack
Unaligned references in the Rust obstack crate can lead to memory corruption, potentially allowing code execution or crashes.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2020-35894?
CVE-2020-35894 is a high-severity memory corruption vulnerability in n/a, published on 31 Dec 2020. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
An issue was discovered in the obstack crate before 0.1.4 for Rust. Unaligned references can occur.
Weakness: CWE-706
Which versions are affected by CVE-2020-35894?
3 open source packages ship an affected version, including obstack. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
obstack crates.io | All versions | 0.1.4 |
obstack crates.io | All versions | 0.1.4 |
obstack crates.io | From 0.0.0-0 | 0.1.4 |
Products include Obstack Project Obstack.
How do I fix CVE-2020-35894?
Upgrade obstack to 0.1.4 or later.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2020-35894 being exploited?
There is no known exploitation of CVE-2020-35894 in the wild and no public exploit code.
Sources
Also known as GHSA-85j6-f8j6-q26x, RUSTSEC-2020-0040.