CVE-2021-38187 Incorrect cast in anymap
A soundness violation in the anymap Rust crate allows memory corruption via unsafe pointer casting, potentially leading to crashes or arbitrary code execution.
- 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-2021-38187?
CVE-2021-38187 is a critical memory corruption vulnerability in n/a, published on 8 Aug 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 anymap crate through 0.12.1 for Rust. It violates soundness via conversion of a *u8 to a *u64.
Weakness: CWE-681
Which versions are affected by CVE-2021-38187?
3 open source packages ship an affected version, including anymap. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
anymap crates.io | All versions to 0.12.1 | None |
anymap crates.io | All versions to 0.12.1 | None |
anymap crates.io | From 0.0.0-0 | None |
Products include Anymap Project Anymap.
How do I fix CVE-2021-38187?
No fix has been published for CVE-2021-38187 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2021-38187 being exploited?
There is no known exploitation of CVE-2021-38187 in the wild and no public exploit code.
Sources
Also known as DEBIAN-CVE-2021-38187, GHSA-hc92-9h3m-c39j, RUSTSEC-2021-0065.