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-2016-4295

When opening a Hangul Hcell Document .cell and processing a particular record within the Workbook stream, an index miscalculation leading to a heap overlow can be made to occur in Hancom Office 2014. The vulnerability occurs when processing data for a formula used to render a chart via the...

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...

Integer overflow

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-2016-4298

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-2016-4295

When opening a Hangul Hcell Document .cell and processing a particular record within the Workbook stream, an index miscalculation leading to a heap overlow can be made to occur in Hancom Office 2014. The vulnerability occurs when processing data for a formula used to render a chart via the...

CVE-2016-4294

When opening a Hangul Hcell Document .cell and processing a property record within the Workbook stream, Hancom Office 2014 will attempt to allocate space for an element using a length from the file. When copying user-supplied data to this buffer, however, the application will use a different size...

CVE-2016-4298

CVE-2016-4298 is a code-execution vulnerability in Hancom Hangul Office HShow component. Talos and other sources describe an integer overflow during processing of Hangul HShow documents (.hpt): while reading a 0x10-byte structure from decompressed zlib data, a length derived from the file is mult...

CVE-2016-4295

Concrete details from connected reports show CVE-2016-4295 affects Hancom Hangul Hangul HCell components (HCell.exe, HCellApp.dll, HCellBook.dll, 9.1.0.2176) in Hancom Office 2014 VP. The root cause is a bounds-checking flaw in CFormulaTokenSizeModifier during chart/formula processing of Workbook...

CVE-2016-4294

CVE-2016-4294 : Concrete heap-based buffer overflow in Hancom Hangul HCell OfficeArt handling. The vulnerability arises when parsing OfficeArtFOPT/OfficeArtSpContainer sub-records (pVertices and pSegmentInfo) in the Workbook stream. An IMsoArray structure (cbElem and nElems) is read from the comp...

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...

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-2016-4296

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 wil...

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

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-2016-4296

This CVE (CVE-2016-4296) affects Hancom Hangul HCell components (HCellApp, HCellBook, CSSValFormat) used in Hangul Office. The root cause is in CSSValFormat::CheckUnderbar: it seeks the last underscore in a Unicode string and rewrites that underscore plus a null terminator, which when the string ...

CVE-2016-4291

CVE-2016-4291 affects Hancom Hangul Office 2014 VP (Hangul HShow). A structure field in an HShow document (.hpt) can cause an integer overflow during a size calculation, leading to an undersized heap allocation. Subsequent reads write beyond the allocated buffer, enabling code execution in the Ha...

Hancom Office 2014 VP Local Arbitrary Code Execution Vulnerability (CNVD-2016-06352)

Hancom Office 2014 VP is a cloud storage service solution developed by Hancom Korea. Hancom Office 2014 VP suffers from a local arbitrary code execution vulnerability that could be exploited by a local attacker to execute arbitrary code in the context of the application or conduct a denial of...

Hancom Office 2014 VP Local Arbitrary Code Execution Vulnerability

Hancom Office 2014 VP Value Pack is a cloud storage service solution developed by Hancom Korea. A local arbitrary code execution vulnerability exists in Hancom Office 2014 VP versions 9.1.0.2176 and 9.1.0.2291. An attacker could exploit the vulnerability to execute arbitrary code in an affected...

Hancom Office 2014 VP Local Arbitrary Code Execution Vulnerability (CNVD-2016-06354)

Hancom Office 2014 VP is a cloud storage service solution developed by Hancom Korea. Hancom Office 2014 VP suffers from a local arbitrary code execution vulnerability that could be exploited by a local attacker to execute arbitrary code in the context of the application or conduct a denial of...