CVE-2020-6155 Memory corruption in Pixar

High 8.8 Published Updated

A heap overflow in Pixar OpenUSD allows remote code execution when a victim opens a specially crafted malformed binary USD file.

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
None listed

What is CVE-2020-6155?

CVE-2020-6155 is a high-severity memory corruption vulnerability in Pixar, published on 13 Nov 2020. 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

A heap overflow vulnerability exists in the Pixar OpenUSD 20.05 while parsing compressed value rep arrays in binary USD files. A specially crafted malformed file can trigger a heap overflow, which can result in remote code execution. To trigger this vulnerability, the victim needs to access an attacker-provided malformed file.

Weakness: CWE-787, CWE-122

Which versions are affected by CVE-2020-6155?

It affects 1 product.

Products include Pixar Openusd.

How do I fix CVE-2020-6155?

No fix has been published for CVE-2020-6155 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-2020-6155 being exploited?

There is no known exploitation of CVE-2020-6155 in the wild and no public exploit code.

Sources

Also known as GHSA-3pfh-89c7-75qg.

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