CVE-2023-5217

El desbordamiento del búfer en la codificación vp8 en libvpx en Google Chrome anterior a 117.0.5938.132 y libvpx 1.13.1 permitía a un atacante remoto explotar potencialmente la corrupción del montón a través de una página HTML manipulada. (Severidad de seguridad de Chrome: alta)

A heap-based buffer overflow flaw was found in the way libvpx, a library used to process VP8 and VP9 video codecs data, processes certain specially formatted video data via a crafted HTML page. This flaw allows an attacker to crash or remotely execute arbitrary code in an application, such as a web browser that is compiled with this library.

USN-6404-1 fixed vulnerabilities in Firefox. The update introduced several minor regressions. This update fixes the problem. Multiple security issues were discovered in Firefox. If a user were tricked into opening a specially crafted website, an attacker could potentially exploit these to cause a denial of service, obtain sensitive information across domains, or execute arbitrary code. Ronald Crane discovered that Firefox did not properly manage memory when non-HTTPS Alternate Services is enabled. An attacker could potentially exploit this issue to cause a denial of service. Clément Lecigne discovered that Firefox did not properly manage memory when handling VP8 media stream. An attacker-controlled VP8 media stream could lead to a heap buffer overflow in the content process, resulting in a denial of service, or possibly execute arbitrary code.

Google Chromium libvpx contains a heap buffer overflow vulnerability in vp8 encoding that allows a remote attacker to potentially exploit heap corruption via a crafted HTML page. This vulnerability could impact web browsers using libvpx, including but not limited to Google Chrome.