CVE-2016-4295 When opening a Hangul Hcell Document (.cell) and processing a particular record within the Workbook stream, an index miscalculation leading to a heap overlow can be made to occur in Hancom Office 2014...
HighCVSS 7.8
EPSS 2.2%
- Published
- Updated
- Exploit status
- No public exploit known
Description
When opening a Hangul Hcell Document (.cell) and processing a particular record within the Workbook stream, an index miscalculation leading to a heap overlow can be made to occur in Hancom Office 2014. The vulnerability occurs when processing data for a formula used to render a chart via the HncChartPlugin.hplg library. Due to a lack of bounds-checking when incrementing an index that is used for writing into a buffer for formulae, the application can be made to write pointer data outside its bounds which can lead to code execution under the context of the application.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| hancom office 2014 | <= 9.1.0.2176 | No fix listed |
| Hancom Office | = 2014 VP Trial HCell.exe Product version: 9.1.0.2176, HCellApp.dll Product version: 9.1.0.2176 HCellBook.dll Product version: 9.1.0.2176 | No fix listed |
References
- 92327 vdb-entry
- www.talosintelligence.com exploit technical-description third-party-advisory vdb-entry