ID |
CVE-2016-4298
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Summary |
When opening a Hangul HShow Document (.hpt) and processing a structure within the document, Hancom Office 2014 will attempt to allocate space for a list of elements using a length from the file. When calculating this length, an integer overflow can be made to occur which will cause the buffer to be undersized when the application tries to copy file data into the object containing this structure. This allows one to overwrite contiguous data in the heap which can lead to code-execution under the context of the application. |
References |
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Vulnerable Configurations |
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CVSS |
Base: | 6.8 (as of 11-01-2017 - 02:59) |
Impact: | |
Exploitability: | |
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CWE |
CWE-190 |
CAPEC |
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Forced Integer Overflow
This attack forces an integer variable to go out of range. The integer variable is often used as an offset such as size of memory allocation or similarly. The attacker would typically control the value of such variable and try to get it out of range. For instance the integer in question is incremented past the maximum possible value, it may wrap to become a very small, or negative number, therefore providing a very incorrect value which can lead to unexpected behavior. At worst the attacker can execute arbitrary code.
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Access |
Vector | Complexity | Authentication |
NETWORK |
MEDIUM |
NONE |
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Impact |
Confidentiality | Integrity | Availability |
PARTIAL |
PARTIAL |
PARTIAL |
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cvss-vector
via4
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AV:N/AC:M/Au:N/C:P/I:P/A:P
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refmap
via4
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Last major update |
11-01-2017 - 02:59 |
Published |
06-01-2017 - 21:59 |
Last modified |
11-01-2017 - 02:59 |