CVE-2016-4298 Integer overflow in Hancom version Hancom Office 2014 VP Trial HShow.exe Product version: 9.1.0.2176 HncBM90.dll Product version: 9.1.0.2291
An integer overflow in Hancom Office allows remote attackers to execute arbitrary code via a crafted HShow 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-2016-4298?
CVE-2016-4298 is a high-severity vulnerability in Hancom version Hancom Office 2014 VP Trial HShow.exe Product version: 9.1.0.2176 HncBM90.dll Product version: 9.1.0.2291, published on 6 Jan 2017. 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
When opening a Hangul HShow Document (.hpt) and processing a structure within the document, Hancom Office 2014 will attempt to allocate space for a list of elements using a length from the file. When calculating this length, an integer overflow can be made to occur which will cause the buffer to be undersized when the application tries to copy file data into the object containing this structure. This allows one to overwrite contiguous data in the heap which can lead to code-execution under the context of the application.
Weakness: CWE-190
Which versions are affected by CVE-2016-4298?
It affects 1 product.
Products include Hancom Hancom Office 2014.
How do I fix CVE-2016-4298?
No fix has been published for CVE-2016-4298 yet. Limit exposure of the affected software until one is available.
Is CVE-2016-4298 being exploited?
There is no known exploitation of CVE-2016-4298 in the wild and no public exploit code.
Other vulnerabilities in Hancom version Hancom Office 2014 VP Trial HShow.exe Product version: 9.1.0.2176 HncBM90.dll Product version: 9.1.0.2291
Sources
Also known as GHSA-95mp-483v-x6wh.