CVE-2020-28598 Memory corruption in Prusa Research

High 8.8 Published Updated

A specially crafted AMF file can trigger an out-of-bounds write in PrusaSlicer, allowing attackers to execute arbitrary code.

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-2020-28598?

CVE-2020-28598 is a high-severity memory corruption vulnerability in Prusa Research, published on 8 Jul 2021. 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 out-of-bounds write vulnerability exists in the Admesh stl_fix_normal_directions() functionality of Prusa Research PrusaSlicer 2.2.0 and Master (commit 4b040b856). A specially crafted AMF file can lead to code execution. An attacker can provide a malicious file to trigger this vulnerability.

Weakness: CWE-787, CWE-122

Which versions are affected by CVE-2020-28598?

It affects 1 product.

Products include Prusa3d Prusaslicer.

How do I fix CVE-2020-28598?

No fix has been published for CVE-2020-28598 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-2020-28598 being exploited?

There is no known exploitation of CVE-2020-28598 in the wild and no public exploit code.

Sources

Also known as DEBIAN-CVE-2020-28598, GHSA-r4pr-c48w-whqg, UBUNTU-CVE-2020-28598.

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