Vulnerability 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 block of data within the file. When calculating this length, the application will use a value from the file and add a constant to it without checking whether the addition of the constant will cause the integer to overflow which will cause the buffer to be undersized when the application tries to copy file data into it. This allows one to overwrite contiguous data in the heap which can lead to code-execution under the context of the application.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Hancom | Hancom Office 2014 | <= 9.1.0.2176 |
Related Weaknesses (CWE)
References
- http://www.securityfocus.com/bid/92325
- http://www.talosintelligence.com/reports/TALOS-2016-0145/ExploitTechnical DescriptionThird Party Advisory
- http://www.securityfocus.com/bid/92325
- http://www.talosintelligence.com/reports/TALOS-2016-0145/ExploitTechnical DescriptionThird Party Advisory
FAQ
What is CVE-2016-4290?
CVE-2016-4290 is a vulnerability with a CVSS score of 7.8 (HIGH). When opening a Hangul HShow Document (.hpt) and processing a structure within the document, Hancom Office 2014 will attempt to allocate space for a block of data within the file. When calculating this...
How severe is CVE-2016-4290?
CVE-2016-4290 has been rated HIGH with a CVSS base score of 7.8/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2016-4290?
Check the references section above for vendor advisories and patch information. Affected products include: Hancom Hancom Office 2014.