CVE-2021-29931 Double free in arenavec
A double drop vulnerability in the arenavec Rust crate can lead to memory corruption and potential code execution or denial of service.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2021-29931?
CVE-2021-29931 is a high-severity use after free vulnerability in n/a, published on 1 Apr 2021. 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 arenavec crate through 2021-01-12 for Rust. A double drop can sometimes occur upon a panic in T::drop().
Weakness: CWE-415
Which versions are affected by CVE-2021-29931?
2 open source packages ship an affected version, including arenavec. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
arenavec crates.io | All versions to 0.1.1 | None |
arenavec crates.io | All versions to 0.1.1 | None |
Products include Arenavec Project Arenavec.
How do I fix CVE-2021-29931?
No fix has been published for CVE-2021-29931 yet. Limit exposure of the affected software until one is available.
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-2021-29931 being exploited?
There is no known exploitation of CVE-2021-29931 in the wild and no public exploit code.
Other vulnerabilities in n/a
Sources
Also known as GHSA-955p-rc5h-hg6h.