Red Hat Security Advisory 2016-1912-01 – Mozilla Firefox is an open source web browser. This update upgrades Firefox to version 45.4.0 ESR. Security Fix: Multiple flaws were found in the processing of malformed web content. A web page containing malicious content could cause Firefox to crash or, potentially, execute arbitrary code with the privileges of the user running Firefox.

Cisco Security Advisory – A vulnerability in the web-based GUI of the Cisco Cloud Services Platform 2100 could allow an authenticated, remote attacker to execute arbitrary commands on the underlying operating system with the privileges of the root user. The vulnerability is due to insufficient sanitization of user-supplied input. An attacker could exploit this vulnerability by authenticating to the affected system with administrative privileges and inserting arbitrary commands. An exploit could allow the attacker to execute arbitrary commands on the host operating system with the privileges of root. Cisco has released software updates that address this vulnerability. Workarounds that address this vulnerability are not available.

Cisco Security Advisory – A vulnerability in the web interface of Cisco Cloud Services Platform (CSP) 2100 could allow an unauthenticated, remote attacker to execute arbitrary code on a targeted system. The vulnerability is due to insufficient sanitization of specific values received as part of a user-supplied HTTP request. An attacker could exploit this vulnerability by sending a malicious dnslookup request to the affected system. An exploit could allow the attacker to execute arbitrary code with the privileges of the user. Cisco has released software updates that address this vulnerability. Workarounds that address this vulnerability are not available.

Ubuntu Security Notice 3086-1 – Gabriel Campana and Adrien Guinet discovered that the format parsing code in Irssi did not properly verify 24bit color codes. A remote attacker could use this to cause a denial of service. Gabriel Campana and Adrien Guinet discovered that a buffer overflow existed in the format parsing code in Irssi. A remote attacker could use this to cause a denial of service.