CVE-2016-4295

Published on: 01/06/2017 12:00:00 AM UTC

Last Modified on: 03/23/2021 11:26:59 PM UTC

CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Certain versions of Hancom Office 2014 from Hancom contain the following vulnerability:

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.

  • CVE-2016-4295 has been assigned by [email protected] to track the vulnerability - currently rated as HIGH severity.
  • Affected Vendor/Software: Hancom - Hancom Office version 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

CVSS3 Score: 7.8 - HIGH

Attack
Vector
Attack
Complexity
Privileges
Required
User
Interaction
LOCAL LOW NONE REQUIRED
Scope Confidentiality
Impact
Integrity
Impact
Availability
Impact
UNCHANGED HIGH HIGH HIGH

CVSS2 Score: 6.8 - MEDIUM

Access
Vector
Access
Complexity
Authentication
NETWORK MEDIUM NONE
Confidentiality
Impact
Integrity
Impact
Availability
Impact
PARTIAL PARTIAL PARTIAL

CVE References

Description Tags Link
Malformed Request cve.report (archive)
text/html
URL Logo BID 92327
Cisco Talos - Talos 2016 0150 Exploit
Technical Description
Third Party Advisory
VDB Entry
www.talosintelligence.com
text/html
URL Logo MISC www.talosintelligence.com/reports/TALOS-2016-0150/

Known Affected Configurations (CPE V2.3)

Type Vendor Product Version Update Edition Language
ApplicationHancomHancom Office 2014AllAllAllAll
  • cpe:2.3:a:hancom:hancom_office_2014:*:*:*:*:*:*:*:*: