CVE-2016-4292 Memory corruption in Hancom Office
A memory corruption vulnerability in Hancom Office allows attackers to execute arbitrary code via a malicious 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-2016-4292?
CVE-2016-4292 is a high-severity memory corruption vulnerability in Hancom Office, 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 use a static size to allocate a heap buffer yet explicitly trust a size from the file when modifying data inside of it. Due to this, an aggressor can corrupt memory outside the bounds of this buffer which can lead to code execution under the context of the application.
Weakness: CWE-119
Which versions are affected by CVE-2016-4292?
It affects 1 product.
Products include Hancom Hancom Office 2014.
How do I fix CVE-2016-4292?
No fix has been published for CVE-2016-4292 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-2016-4292 being exploited?
There is no known exploitation of CVE-2016-4292 in the wild and no public exploit code.
Other vulnerabilities in Hancom Office
Sources
Also known as GHSA-4h4r-xvmr-v723.