CVE-2018-3982 Memory corruption in Atlantis Word Processor

High 8.8 Published Updated

An attacker can achieve code execution by tricking a user into opening a specially crafted Word document in Atlantis Word Processor.

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-2018-3982?

CVE-2018-3982 is a high-severity memory corruption vulnerability in The Atlantis Word Processor Team Atlantis Word Processor, published on 1 Oct 2018. 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 arbitrary write vulnerability exists in the Word document parser of the Atlantis Word Processor 3.0.2.3 and 3.0.2.5. A specially crafted document can prevent Atlas from adding elements to an array that is indexed by a loop. When reading from this array, the application will use an out-of-bounds index which can result in arbitrary data being read as a pointer. Later, when the application attempts to write to said pointer, an arbitrary write will occur. This can allow an attacker to further corrupt memory, which leads to code execution under the context of the application. An attacker must convince a victim to open a document in order to trigger this vulnerability.

Weakness: CWE-787

Which versions are affected by CVE-2018-3982?

It affects 1 product.

Products include Atlantiswordprocessor Atlantis Word Processor.

How do I fix CVE-2018-3982?

No fix has been published for CVE-2018-3982 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-2018-3982 being exploited?

There is no known exploitation of CVE-2018-3982 in the wild and no public exploit code.

Sources

Also known as GHSA-fvcx-pr44-cwwj.

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