The vulnerability of the WebGL2RenderingContext.blitFramebuffer() method in the WebGL2 interface of Firefox and Firefox ESR browsers, as well as the Thunderbird email client, allows an attacker to gain unauthorized access to protected information.

The vulnerability of the WebGL2RenderingContext.blitFramebuffer method in Firefox and Firefox ESR browsers, as well as the Thunderbird email client, is related to the issue of performing operations beyond the buffer boundaries when processing canvas elements. Exploiting this vulnerability can all...