CVE-2016-4295
Quick assessment
Affected
Hancom Hancom Office
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
Hancom Office 2014 VP（Value Pack）是韩国Hancom公司开发的一套云存储服务解决方案。Hangul Hcell是其中的一个电子表格应用程序。 Hancom Office 2014 VP中的Hangul Hcell应用程序存在基于堆的缓冲区溢出漏洞，该漏洞源于程序缺少边界检查。攻击者可利用该漏洞在应用程序上下文中执行代码。
Possible ATT&CK Techniques 1 AI
T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2016-4295
Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
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.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
Hancom Office Hangul Hcell应用程序缓冲区错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Hancom Office 2014 VP（Value Pack）是韩国Hancom公司开发的一套云存储服务解决方案。Hangul Hcell是其中的一个电子表格应用程序。 Hancom Office 2014 VP中的Hangul Hcell应用程序存在基于堆的缓冲区溢出漏洞，该漏洞源于程序缺少边界检查。攻击者可利用该漏洞在应用程序上下文中执行代码。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| Hancom | Hancom Office | 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 | - |
|
II. Public POCs for CVE-2016-4295
| # | POC Description | Source Link | Shenlong Link |
|---|
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Vendor Advisories for CVE-2016-4295 (1)
Other References for CVE-2016-4295 (1)
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http://www.talosintelligence.com/reports/TALOS-2016-0150/ x_refsource_MISC
Same Patch Batch · Hancom · 2017-01-06 · 6 CVEs total
| CVE-2016-4290 | Hancom Office Hangul HShow 整数错误漏洞 | |
| CVE-2016-4291 | Hancom Office 数字错误漏洞 | |
| CVE-2016-4292 | Hancom Office 安全漏洞 | |
| CVE-2016-4294 | Hancom Office Hangul Hcell 缓冲区错误漏洞 | |
| CVE-2016-4296 | Hancom Office Hangul Hcell应用程序安全漏洞 |
IV. Related Vulnerabilities
Same vendor: Hancom
V. Comments for CVE-2016-4295
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