Description
When opening a Hangul HShow Document (.hpt) and processing a structure within the document, Hancom Office 2014 will use a static size to allocate a heap buffer yet explicitly trust a size from the file when modifying data inside of it. Due to this, an aggressor can corrupt memory outside the bounds of this buffer which 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-2016-0147/
Third Party Advisory, VDB Entry vdb-entry
x_refsource_bid
http://www.securityfocus.com/bid/92325
Scores
CVSS v3
7.8
EPSS
0.0209
EPSS Percentile
79.3%
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 HShow.exe Product version: 9.1.0.2176 HncBM90.dll Product version: 9.1.0.2291
hancom/hancom_office_2014
< 9.1.0.2176
Published
Jan 06, 2017
Tracked Since
Feb 18, 2026