CVE-2020-27250 Memory corruption in SoftMaker

High 8.8 Published Updated

A heap-based buffer overflow in SoftMaker Office PlanMaker allows attackers to execute arbitrary code by tricking users into opening a malicious document.

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-2020-27250?

CVE-2020-27250 is a high-severity memory corruption vulnerability in SoftMaker, published on 10 Feb 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

In SoftMaker Software GmbH SoftMaker Office PlanMaker 2021 (Revision 1014), a specially crafted document can cause the document parser to copy data from a particular record type into a static-sized buffer within an object that is smaller than the size used for the copy, which will cause a heap-based buffer overflow at Version/Instance 0x0005 and 0x0016. An attacker can entice the victim to open a document to trigger this vulnerability.

Weakness: CWE-787, CWE-122

Which versions are affected by CVE-2020-27250?

It affects 1 product.

Products include Softmaker Planmaker 2021.

How do I fix CVE-2020-27250?

No fix has been published for CVE-2020-27250 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-2020-27250 being exploited?

There is no known exploitation of CVE-2020-27250 in the wild and no public exploit code.

Sources

Also known as GHSA-3grx-q7gc-c986.

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