CVE-2020-35874 Use after free in internment
A race condition in the Rust internment crate leads to a use-after-free, potentially allowing attackers to execute arbitrary code or cause 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-2020-35874?
CVE-2020-35874 is a high-severity use after free 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 internment crate through 2020-05-28 for Rust. ArcIntern::drop has a race condition and resultant use-after-free.
Which versions are affected by CVE-2020-35874?
3 open source packages ship an affected version, including internment. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
internment crates.io | From 0.3.12 | 0.4.0 |
internment crates.io | From 0.3.12 | 0.4.0 |
internment crates.io | From 0.3.12 | 0.4.0 |
Products include Internment Project Internment.
How do I fix CVE-2020-35874?
Upgrade internment to 0.4.0 or later.
Upgrade to the fixed version. These bugs are found with fuzzing and sanitisers and avoided by memory-safe languages. More about Use after free.
Is CVE-2020-35874 being exploited?
There is no known exploitation of CVE-2020-35874 in the wild and no public exploit code.
Other vulnerabilities in n/a
Sources
Also known as GHSA-96w3-p368-4h8c, RUSTSEC-2020-0017.