CVE-2021-3504

Se encontró un fallo en hivex library en versiones anteriores a 1.3.20. Debido a una falta de comprobación de límites dentro de la función hivex_open. Un atacante podría ingresar un archivo Windows Registry (hive) que causaría a hivex leer la memoria más allá de sus límites normales o causar que el programa se bloquee. La mayor amenaza de esta vulnerabilidad es la disponibilidad del sistema

A flaw was found in the hivex library. It is caused due to a lack of bounds check within the hivex_open function. An attacker could input a specially crafted Windows Registry (hive) file which would cause hivex to read memory beyond its normal bounds or cause the program to crash. The highest threat from this vulnerability is to system availability.

Kernel-based Virtual Machine offers a full virtualization solution for Linux on numerous hardware platforms. The virt:rhel module contains packages which provide user-space components used to run virtual machines using KVM. The packages also provide APIs for managing and interacting with the virtualized systems. Issues addressed include buffer overflow, denial of service, and out of bounds access vulnerabilities.