CVE-2020-35895 Out-of-bounds write in stack
An out-of-bounds write in the Rust stack crate allows attackers to cause memory corruption, potentially leading to 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-2020-35895?
CVE-2020-35895 is a critical 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 stack crate before 0.3.1 for Rust. ArrayVec has an out-of-bounds write via element insertion.
Weakness: CWE-787
Which versions are affected by CVE-2020-35895?
3 open source packages ship an affected version, including stack. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
stack crates.io | All versions | 0.3.1 |
stack crates.io | All versions | 0.3.1 |
stack crates.io | From 0.0.0-0 | 0.3.1 |
Products include Stack Project Stack.
How do I fix CVE-2020-35895?
Upgrade stack to 0.3.1 or later.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2020-35895 being exploited?
There is no known exploitation of CVE-2020-35895 in the wild and no public exploit code.
Sources
Also known as GHSA-h45v-vgvp-3h5v, RUSTSEC-2020-0042.