CVE-2016-4295
Last modified
CVE-2016-4295 is a vulnerability of currently unknown severity. 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. EPSS estimates a 2.21% chance of exploitation in the next 30 days.
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.
Metrics
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Hancom | Hancom Office 2014 | <= 9.1.0.2176 |
References
- http://www.talosintelligence.com/reports/TALOS-2016-0150/Exploit, Technical Description, Third Party Advisory, VDB Entry
- http://www.talosintelligence.com/reports/TALOS-2016-0150/Exploit, Technical Description, Third Party Advisory, VDB Entry
Timeline
- Published
- Last Modified
- Status
- Modified
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