Altair HyperView Player versions 2021.1.0.27 and prior are vulnerable to improper validation of array index vulnerability during processing of H3D files. A DWORD value from a PoC file is extracted and used as an index to write to a buffer, leading to memory corruption.

Altair HyperView Player versions 2021.1.0.27 and prior are vulnerable to the use of uninitialized memory vulnerability during parsing of H3D files. A DWORD is extracted from an uninitialized buffer and, after sign extension, is used as an index into a stack variable to increment a counter leading to memory corruption.

Altair HyperView Player versions 2021.1.0.27 and prior are vulnerable to the use of uninitialized memory vulnerability during parsing of H3D files. A DWORD is extracted from an uninitialized buffer and, after sign extension, is used as an index into a stack variable to increment a counter leading to memory corruption.

Altair HyperView Player versions 2021.1.0.27 and prior perform operations on a memory buffer but can read from or write to a memory location outside of the intended boundary of the buffer. This hits initially as a read access violation, leading to a memory corruption situation.