Heap overflow

When opening a Hangul HShow Document .hpt and processing a structure within the document, Hancom Office 2014 will use a static size to allocate a heap buffer yet explicitly trust a size from the file when modifying data inside of it. Due to this, an aggressor can corrupt memory outside the bounds...

CVE-2016-4298

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...

CVE-2016-4290

When opening a Hangul HShow Document .hpt and processing a structure within the document, Hancom Office 2014 will attempt to allocate space for a block of data within the file. When calculating this length, the application will use a value from the file and add a constant to it without checking...

CVE-2016-4290

CVE-2016-4290 affects Hancom Hangul Office 2014 (HShow component) and is triggered when processing Hangul HShow documents (.hpt). The vulnerability stems from an integer overflow: when the software reads a length from the file and adds a constant (0x16) to it without checking for overflow, a too-...

CVE-2016-4291

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...

CVE-2016-4292

CVE-2016-4292 concerns Hancom Hangul Office 2014 VP’s Hangul HShow processing. A structure read from an HShow document (.hpt) causes the app to allocate a fixed 0xa0 byte buffer, then trust a length from the file to modify data inside that buffer. A 16‑bit value (treated as 15-bit) controls a loo...

Hancom Hangul Office HShow!NXDeleteLineObj+0x53692 Code Execution Vulnerability

Talos Vulnerability Report TALOS-2016-0146 Hancom Hangul Office HShow!NXDeleteLineObj+0x53692 Code Execution Vulnerability August 4, 2016 CVE Number CVE-2016-4291 Description This vulnerability was discovered within the Hangul HShow application which is part of the Hangul Office Suite. Hangul...

Hancom Hangul Office HShow!NXDeleteLineObj+0x560cb Code Execution Vulnerability

Talos Vulnerability Report TALOS-2016-0144 Hancom Hangul Office HShow!NXDeleteLineObj+0x560cb Code Execution Vulnerability August 4, 2016 CVE Number CVE-2016-4298 Description This vulnerability was discovered within the Hangul HShow application which is part of the Hangul Office Suite. Hangul...

Hancom Hangul Office HShow!NXDeleteLineObj+0x47269 Code Execution Vulnerability

Talos Vulnerability Report TALOS-2016-0147 Hancom Hangul Office HShow!NXDeleteLineObj+0x47269 Code Execution Vulnerability August 4, 2016 CVE Number CVE-2016-4292 Description This vulnerability was discovered within the Hangul HShow application which is part of the Hangul Office Suite. Hangul...