Description
When opening a Hangul Hcell Document (.cell) and processing a property record within the Workbook stream, Hancom Office 2014 will attempt to allocate space for an element using a length from the file. When copying user-supplied data to this buffer, however, the application will use a different size which leads to a heap-based buffer overflow. This vulnerability can lead to code-execution under the context of the application.
References (2)
Core 2
Core References
Exploit, Technical Description, Third Party Advisory, VDB Entry x_refsource_misc
http://www.talosintelligence.com/reports/TALOS-2016-0149/
Third Party Advisory, VDB Entry vdb-entry
x_refsource_bid
http://www.securityfocus.com/bid/92327
Scores
CVSS v3
7.8
EPSS
0.0242
EPSS Percentile
82.2%
Attack Vector
LOCAL
CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Details
CWE
CWE-119
Status
published
Products (2)
Hancom/Hancom Office
2014 VP Trial HCell.exe Product version: 9.1.0.2176, HCellApp.dll Product version: 9.1.0.2176 HCellB
hancom/hancom_office_2014
< 9.1.0.2176
Published
Jan 06, 2017
Tracked Since
Feb 18, 2026