CVE-2021-21851

Multiple exploitable integer overflow vulnerabilities exist within the MPEG-4 decoding functionality of the GPAC Project on Advanced Content library v1.0.1. A specially crafted MPEG-4 input at “csgp” decoder sample group description indices can cause an integer overflow due to unchecked arithmetic resulting in a heap-based buffer overflow that causes memory corruption. An attacker can convince a user to open a video to trigger this vulnerability.

Multiple exploitable integer overflow vulnerabilities exist within the MPEG-4 decoding functionality of the GPAC Project on Advanced Content library v1.0.1. A specially crafted MPEG-4 input at “csgp” decoder sample group description indices can cause an integer overflow due to unchecked arithmetic resulting in a heap-based buffer overflow that causes memory corruption. An attacker can convince a user to open a video to trigger this vulnerability.

Se presentan múltiples vulnerabilidades de desbordamiento de enteros explotables dentro de la funcionalidad MPEG-4 decoding de GPAC Project on Advanced Content library versión v1.0.1. Una entrada MPEG-4 especialmente diseñada en los índices de descripción de grupos de muestra del decodificador "csgp" puede causar un desbordamiento de enteros debido a una aritmética no comprobada, resultando en un desbordamiento del búfer en la región heap de la memoria que causa una corrupción de memoria. Un atacante puede convencer a un usuario de que abra un vídeo para desencadenar esta vulnerabilidad.