CVE-2016-4291
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 HShow是其中的一个演示文稿应用程序。 Hancom Office 2014 VP中的Hangul HShow应用程序存在整数溢出漏洞，该漏洞源于程序没有充分地对整数执行边界检查。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-2016-4291
Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability 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: 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 数字错误漏洞
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 HShow是其中的一个演示文稿应用程序。 Hancom Office 2014 VP中的Hangul HShow应用程序存在整数溢出漏洞，该漏洞源于程序没有充分地对整数执行边界检查。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 HShow.exe Product version: 9.1.0.2176 HncBM90.dll Product version: 9.1.0.2291 | - |
|
II. Public POCs for CVE-2016-4291
| # | POC Description | Source Link | Shenlong Link |
|---|
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Vendor Advisories for CVE-2016-4291 (1)
Other References for CVE-2016-4291 (1)
-
http://www.talosintelligence.com/reports/TALOS-2016-0146/ 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-2016-4292 | Hancom Office 安全漏洞 | |
| CVE-2016-4294 | Hancom Office Hangul Hcell 缓冲区错误漏洞 | |
| CVE-2016-4295 | Hancom Office Hangul Hcell应用程序缓冲区错误漏洞 | |
| 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-2016-4291
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