CVE-2020-36512 InputStream::read_exact : `Read` on uninitialized buffer causes UB

Critical 9.8 Published Updated

The buffoon crate may read from uninitialized memory, potentially disclosing sensitive data to attackers.

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-2020-36512?

CVE-2020-36512 is a critical vulnerability in n/a, published on 26 Dec 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 buffoon crate through 2020-12-31 for Rust. InputStream::read_exact may read from uninitialized memory locations.

Weakness: CWE-908

Which versions are affected by CVE-2020-36512?

5 open source packages ship an affected version, including buffoon. It affects 1 product.

PackageAffectedFixed in
buffoon crates.ioAll versions to 0.5.0None
buffoon crates.ioAll versions to 0.5.0None
buffoon crates.ioAll versions to 0.5.0None
buffoon crates.ioAll versions to 0.5.0None
buffoon crates.ioFrom 0.0.0-0None

Products include Buffoon Project Buffoon.

How do I fix CVE-2020-36512?

No fix has been published for CVE-2020-36512 yet. Limit exposure of the affected software until one is available.

Is CVE-2020-36512 being exploited?

There is no known exploitation of CVE-2020-36512 in the wild and no public exploit code.

Sources

Also known as GHSA-hmx9-jm3v-33hv, GHSA-v938-qcc9-rwv8, RUSTSEC-2020-0154.

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