National Vulnerability Database

National Vulnerability Database

National Vulnerability
Database

CVE-2016-4291 Detail

Current Description

When opening a Hangul HShow Document (.hpt) and processing a structure within the document, Hancom Office 2014 will use a field from the structure in an operation that can cause the integer to overflow. This result is then used to allocate memory to copy file data in. Due to the lack of bounds checking on the integer, the allocated memory buffer can be made to be undersized at which point the reading of file data will write outside the bounds of the buffer. This can lead to code execution under the context of the application.

Source:  MITRE
Description Last Modified:  01/06/2017
View Analysis Description

Impact

CVSS v3.0 Severity and Metrics:

Base Score: 7.8 HIGH
Vector: AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H (V3 legend)
Impact Score: 5.9
Exploitability Score: 1.8


Attack Vector (AV): Local
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): Required
Scope (S): Unchanged
Confidentiality (C): High
Integrity (I): High
Availability (A): High

CVSS v2.0 Severity and Metrics:

Base Score: 6.8 MEDIUM
Vector: (AV:N/AC:M/Au:N/C:P/I:P/A:P) (V2 legend)
Impact Subscore: 6.4
Exploitability Subscore: 8.6


Access Vector (AV): Network
Access Complexity (AC): Medium
Authentication (AU): None
Confidentiality (C): Partial
Integrity (I): Partial
Availability (A): Partial
Additional Information:
Victim must voluntarily interact with attack mechanism
Allows unauthorized disclosure of information
Allows unauthorized modification
Allows disruption of service

References to Advisories, Solutions, and Tools

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Hyperlink Resource
http://www.securityfocus.com/bid/92325
http://www.talosintelligence.com/reports/TALOS-2016-0146/ Exploit Technical Description Third Party Advisory VDB Entry

Technical Details

Vulnerability Type (View All)

  • Integer Overflow or Wraparound (CWE-190)

Known Affected Software Configurations Switch to CPE 2.2

Configuration 1 ( hide )
 cpe:2.3:a:hancom:hancom_office_2014:*:*:*:*:*:*:*:*
     Show Matching CPE(s)
Up to (including)
9.1.0.2176


Change History

2 change records found - show changes

Quick Info

CVE Dictionary Entry:
CVE-2016-4291
NVD Published Date:
01/06/2017
NVD Last Modified:
01/10/2017