CVE-2018-5201 Memory corruption in Hancom Office

Medium 5.5 Published Updated

A heap overflow in Hancom Office allows attackers to cause a program crash or denial of service via a malicious document.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Local or same network only
Victim action needed
A user has to click or open something
Fix
None listed

What is CVE-2018-5201?

CVE-2018-5201 is a medium-severity memory corruption vulnerability in Hancom Office, published on 21 Dec 2018. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.

Official description

Hancom Office 2018 10.0.0.8214 and earlier, Hancom Office NEO 9.6.1.10472 and earlier, Hancom Office 2014 9.1.1.4540 and earlier, Hancom Office 2010 8.5.8.1724 and earlier versions have a heap overflow vulnerability when handling Compound File in document. This result in a program crash or denial of service conditions.

Weakness: CWE-787

Which versions are affected by CVE-2018-5201?

It affects 4 products.

Products include Hancom Hancom Office 2010, Hancom Hancom Office 2014, Hancom Hancom Office 2018, Hancom Hancom Office Neo.

How do I fix CVE-2018-5201?

No fix has been published for CVE-2018-5201 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-2018-5201 being exploited?

There is no known exploitation of CVE-2018-5201 in the wild and no public exploit code.

Sources

Also known as GHSA-g457-3qpj-v3gc.

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