CVE-2018-12359 – Mozilla: Buffer overflow using computed size of canvas element

https://notcve.org/view.php?id=CVE-2018-12359

A buffer overflow can occur when rendering canvas content while adjusting the height and width of the canvas element dynamically, causing data to be written outside of the currently computed boundaries. This results in a potentially exploitable crash. This vulnerability affects Thunderbird < 60, Thunderbird < 52.9, Firefox ESR < 60.1, Firefox ESR < 52.9, and Firefox < 61. Puede ocurrir un desbordamiento de búfer al renderizar contenido canvas al ajustar dinámicamente la altura y anchura del elemento canvas, lo que provoca que los datos se escriban fuera de los límites calculados actualmente. Esto resulta en un cierre inesperado potencialmente explotable. • http://www.securityfocus.com/bid/104555 http://www.securitytracker.com/id/1041193 https://access.redhat.com/errata/RHSA-2018:2112 https://access.redhat.com/errata/RHSA-2018:2113 https://access.redhat.com/errata/RHSA-2018:2251 https://access.redhat.com/errata/RHSA-2018:2252 https://bugzilla.mozilla.org/show_bug.cgi?id=1459162 https://lists.debian.org/debian-lts-announce/2018/06/msg00014.html https://lists.debian.org/debian-lts-announce/2018/07/msg00013.html https://securi • CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer CWE-120: Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') •