zgv: Multiple buffer overflows

Background zgv is a console image viewer based on svgalib. Description Multiple arithmetic overflows have been detected in the image processing code of zgv. Impact An attacker could entice a user to open a specially-crafted image file, potentially resulting in execution of arbitrary code with the...

zgv -- exploitable heap overflows

infamous41md reports: zgv uses malloc frequently to allocate memory for storing image data. When calculating how much to allocate, user supplied data from image headers is multiplied and/or added without any checks for arithmetic overflows. We can overflow numerous calculations, and cause small...