CVE-2020-13579 Integer overflow in Softmaker Software

High 8.8 Published Updated

An attacker can execute arbitrary code by tricking a user into opening a specially crafted document in SoftMaker Office PlanMaker.

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-2020-13579?

CVE-2020-13579 is a high-severity vulnerability in Softmaker Software, published on 4 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

An exploitable integer overflow vulnerability exists in the PlanMaker document parsing functionality of SoftMaker Office 2021’s PlanMaker application. A specially crafted document can cause the document parser perform arithmetic that may overflow which can result in an undersized heap allocation. Later when copying data from the file into this allocation, a heap-based buffer overflow will occur which can corrupt memory. These types of memory corruptions can allow for code execution under the context of the application. An attacker can entice the victim to open a document to trigger this vulnerability.

Weakness: CWE-787, CWE-190

Which versions are affected by CVE-2020-13579?

It affects 1 product.

Products include Softmaker Planmaker 2021.

How do I fix CVE-2020-13579?

No fix has been published for CVE-2020-13579 yet. Limit exposure of the affected software until one is available.

Is CVE-2020-13579 being exploited?

There is no known exploitation of CVE-2020-13579 in the wild and no public exploit code.

Sources

Also known as GHSA-9rhj-8q3f-7x84.

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