CVE-2021-34557

https://notcve.org/view.php?id=CVE-2021-34557

10 Jun 2021 — XScreenSaver 5.45 can be bypassed if the machine has more than ten disconnectable video outputs. A buffer overflow in update_screen_layout() allows an attacker to bypass the standard screen lock authentication mechanism by crashing XScreenSaver. The attacker must physically disconnect many video outputs. XScreenSaver versión 5.45 puede ser omitido si la máquina tiene más de diez salidas de vídeo desconectables. Un desbordamiento de búfer en la función update_screen_layout() permite a un atacante omitir el m... • http://www.openwall.com/lists/oss-security/2021/06/11/1 • CWE-120: Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') •