CVE-2021-31343 Memory corruption in Siemens Solid Edge

High 8.8 Published Updated

An attacker can execute arbitrary code by tricking a user into opening a malicious DFT file in Siemens Solid Edge.

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-2021-31343?

CVE-2021-31343 is a high-severity memory corruption vulnerability in Siemens Solid Edge, published on 8 Jun 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

The jutil.dll library in all versions of Solid Edge SE2020 before 2020MP14 and all versions of Solid Edge SE2021 before SE2021MP5 lack proper validation of user-supplied data when parsing DFT files. This could result in an out-of-bounds write past the end of an allocation structure. An attacker could leverage this vulnerability to execute code in the context of the current process.

Weakness: CWE-787

Which versions are affected by CVE-2021-31343?

It affects 2 products.

Products include Siemens Solid Edge Se2020 Firmware, Siemens Solid Edge Se2021 Firmware.

How do I fix CVE-2021-31343?

No fix has been published for CVE-2021-31343 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-2021-31343 being exploited?

There is no known exploitation of CVE-2021-31343 in the wild and no public exploit code.

Sources

Also known as GHSA-qxp7-w377-c4f4.

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