Vulnerability Details : CVE-2016-4296
When opening a Hangul Hcell Document (.cell) and processing a record that uses the CSSValFormat object, Hancom Office 2014 will search for an underscore ("_") character at the end of the string and write a null terminator after it. If the character is at the very end of the string, the application will mistakenly write the null-byte outside the bounds of its destination. This can result in heap corruption that can lead code execution under the context of the application
Vulnerability category: Overflow
Exploit prediction scoring system (EPSS) score for CVE-2016-4296
Probability of exploitation activity in the next 30 days: 0.10%
Percentile, the proportion of vulnerabilities that are scored at or less: ~ 41 % EPSS Score History EPSS FAQ
CVSS scores for CVE-2016-4296
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source |
|---|---|---|---|---|---|
|
6.8
|
MEDIUM | AV:N/AC:M/Au:N/C:P/I:P/A:P |
8.6
|
6.4
|
NIST |
|
7.8
|
HIGH | CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
1.8
|
5.9
|
NIST |
CWE ids for CVE-2016-4296
-
The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer.Assigned by: nvd@nist.gov (Primary)
References for CVE-2016-4296
-
http://www.securityfocus.com/bid/92327
Hancom Office 2014 VP Multiple Local Arbitrary Code Execution Vulnerabilities
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http://www.talosintelligence.com/reports/TALOS-2016-0151/
TALOS-2016-0151 || Cisco Talos Intelligence Group - Comprehensive Threat IntelligenceExploit;Technical Description;Third Party Advisory;VDB Entry
Products affected by CVE-2016-4296
- cpe:2.3:a:hancom:hancom_office_2014:*:*:*:*:*:*:*:*