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CVE Record

CVE-2016-4298: When opening a Hangul HShow Document (.hpt) and processing a structure within the document, Hancom Office 2...

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.

UnknownCVSS not scoredNot KEV-listedUpdated
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Glexia's TakeAutomated analysis

Security readout for executives and security teams

CVE-2016-4298 is a document-parsing flaw in Hancom Office 2014 HShow. A malicious Hangul HShow .hpt file can trigger memory corruption when opened, potentially running code as the user. Business risk is highest where affected Hancom versions are installed and users receive untrusted documents. Exposure is limited to environments with the specified Hancom Office 2014 VP Trial HShow.exe 9.1.0.2176 and HncBM90.dll 9.1.0.2291, especially users who open untrusted .hpt presentation files. Treat this as high priority if Hancom Office 2014 is present in document-heavy teams. The risk is user-driven code execution from malicious files, but supplied evidence does not confirm active exploitation or a specific patch. Mitigation focus: Inventory endpoints for the specified Hancom HShow and HncBM90.dll versions.; Check Hancom or vendor guidance for fixed builds and supported remediation.; Restrict or quarantine untrusted .hpt attachments and downloads..

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Vulnerability profileCVE Program record
Severity
Unknown
CVSS
Not scored
Known Exploited
No
Published
Official CVE source material

CNA and ADP enrichment extracted from CVE v5

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0ADP providers
1Source links

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Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
n/aHancom version Hancom Office 2014 VP Trial HShow.exe Product version: 9.1.0.2176 HncBM90.dll Product version: 9.1.0.2291Hancom version Hancom Office 2014 VP Trial HShow.exe Product version: 9.1.0.2176 HncBM90.dll Product version: 9.1.0.2291Listed
Weakness

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