CVE-2020-36467 Multiple soundness issues in cgc

Medium 5.9 Published Updated

The cgc crate for Rust allows multiple mutable references to the same object, potentially leading to memory corruption and 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-2020-36467?

CVE-2020-36467 is a medium-severity 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 cgc crate through 2020-12-10 for Rust. Ptr::get returns more than one mutable reference to the same object.

Which versions are affected by CVE-2020-36467?

2 open source packages ship an affected version, including cgc. It affects 1 product.

PackageAffectedFixed in
cgc crates.ioAll versions to 0.4.0None
cgc crates.ioAll versions to 0.4.0None

Products include Cgc Project Cgc.

How do I fix CVE-2020-36467?

No fix has been published for CVE-2020-36467 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-2020-36467 being exploited?

There is no known exploitation of CVE-2020-36467 in the wild and no public exploit code.

Sources

Also known as GHSA-f3mq-99jr-ww4r.

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