CVE-2017-2819 Integer overflow in Hangul Word Processor in Thinkfree Office NEO Trial Word

High 8.8 Published Updated

A specially crafted document can trigger an integer underflow leading to a heap buffer overflow and arbitrary code execution in Hancom Thinkfree Office NEO.

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-2017-2819?

CVE-2017-2819 is a high-severity vulnerability in Hancom Hangul Word Processor in Thinkfree Office NEO Trial Word, published on 24 May 2017. 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 heap-based buffer overflow exists in the Hangul Word Processor component (version 9.6.1.4350) of Hancom Thinkfree Office NEO 9.6.1.4902. A specially crafted document stream can cause an integer underflow resulting in a buffer overflow which can lead to code execution under the context of the application. An attacker can entice a user to open up a document in order to trigger this vulnerability.

Weakness: CWE-119

Which versions are affected by CVE-2017-2819?

It affects 2 products.

Products include Hancom Hangul Word Processor, Hancom Thinkfree Office Neo.

How do I fix CVE-2017-2819?

No fix has been published for CVE-2017-2819 yet. Limit exposure of the affected software until one is available.

Is CVE-2017-2819 being exploited?

There is no known exploitation of CVE-2017-2819 in the wild and no public exploit code.

Sources

Also known as GHSA-g9qc-mh3w-mp47.

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