CVE-2016-4298
When opening a Hangul HShow Document (.hpt) and processing a structure within the document, Hancom Office 2014 will attempt to allocate spa…
Published 9 y ago · modified 4 mo ago · JSON
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.
Exploit prediction (EPSS)
2.33% probability of exploitation in the next 30 days, higher than 84% of all scored CVEs.
CVSS scores
| Assigned by | Version | Score | Vector |
|---|---|---|---|
| NVD | 3.0 | 7.8 | CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
| NVD | 2.0 | 6.8 | AV:N/AC:M/Au:N/C:P/I:P/A:P |
Affected products
- n/a Hancom version Hancom Office 2014 VP Trial HShow.exe Product version: 9.1.0.2176 HncBM90.dll Product version: 9.1.0.2291
Classification
- Weakness
- CWE-190 Integer Overflow or Wraparound
References
- talosintelligence.com /reports/TALOS-2016-0144/ · x_refsource_MISC, x_transferred
- securityfocus.com /bid/92325 · vdb-entry, x_refsource_BID, x_transferred
Sources
- CVE List: CVE-2016-4298
- NVD: CVE-2016-4298
vulnwire keeps one entry per vulnerability: the CVE id wins, then GHSA; records that alias each other are merged. Machine-readable: JSON.