CVE-2020-12038 Memory corruption in EDS Subsystem, FactoryTalk Linx software (Previously called RSLinx Enterprise), RSLinx Classic, RSNetWorx software, Studio 5000 Logix Designer software

Medium 5.5 Published Updated

Attackers can cause denial of service in Rockwell Automation industrial software by crafting malicious EDS files that trigger memory corruption.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Local or same network only
Victim action needed
A user has to click or open something
Fix
None listed

What is CVE-2020-12038?

CVE-2020-12038 is a medium-severity memory corruption vulnerability in EDS Subsystem, FactoryTalk Linx software (Previously called RSLinx Enterprise), RSLinx Classic, RSNetWorx software, Studio 5000 Logix Designer software, published on 19 May 2020. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.

Official description

Products that use EDS Subsystem: Version 28.0.1 and prior (FactoryTalk Linx software (Previously called RSLinx Enterprise): Versions 6.00, 6.10, and 6.11, RSLinx Classic: Version 4.11.00 and prior, RSNetWorx software: Version 28.00.00 and prior, Studio 5000 Logix Designer software: Version 32 and prior) is vulnerable. A memory corruption vulnerability exists in the algorithm that matches square brackets in the EDS subsystem. This may allow an attacker to craft specialized EDS files to crash the EDSParser COM object, leading to denial-of-service conditions.

Weakness: CWE-787, CWE-119

Which versions are affected by CVE-2020-12038?

It affects 5 products.

Products include Rockwellautomation Eds Subsystem, Rockwellautomation Rslinx, Rockwellautomation Rslinx Enterprise, Rockwellautomation Rsnetworx, Rockwellautomation Studio 5000 Logix Designer.

How do I fix CVE-2020-12038?

No fix has been published for CVE-2020-12038 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-2020-12038 being exploited?

There is no known exploitation of CVE-2020-12038 in the wild and no public exploit code.

Sources

Also known as GHSA-gxv4-cqjv-gg3m.

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