CVE-2018-20992 Uninitialized memory exposure in claxon

Medium 6.5 Published Updated

Attackers can read uninitialized memory from the claxon Rust crate due to mishandled decode buffer sizes, potentially exposing sensitive data.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
A user has to click or open something
Fix
Available

What is CVE-2018-20992?

CVE-2018-20992 is a medium-severity vulnerability in n/a, published on 26 Aug 2019. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

Official description

An issue was discovered in the claxon crate before 0.4.1 for Rust. Uninitialized memory can be exposed because certain decode buffer sizes are mishandled.

Weakness: CWE-908

Which versions are affected by CVE-2018-20992?

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

PackageAffectedFixed in
claxon crates.ioAll versions0.3.2
claxon crates.ioAll versions0.3.2
claxon crates.ioFrom 0.0.0-00.3.2, 0.4.1
claxon crates.ioFrom 0.4.00.4.1
claxon crates.ioFrom 0.4.00.4.1

Products include Claxon Project Claxon.

How do I fix CVE-2018-20992?

Upgrade claxon to a fixed version for your release line: 0.3.2 or 0.4.1.

Is CVE-2018-20992 being exploited?

There is no known exploitation of CVE-2018-20992 in the wild and no public exploit code.

Sources

Also known as GHSA-8c6g-4xc5-w96c, RUSTSEC-2018-0004.

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