Marek Kroemeke

**Name of the Vulnerable Software and Affected Versions** FreeBSD versions prior to 8.4 p24 FreeBSD versions 9.x prior to 9.3 p10 FreeBSD versions 10.0 prior to p18 FreeBSD versions 10.1 prior to p6 **Description** The issue is caused by an integer overflow that allows remote attackers to trigger a denial of service, resulting in a system crash. This is achieved by sending a crafted IGMP packet, which causes an incorrect size calculation and allocation of insufficient memory. **Recommendations** For FreeBSD versions prior to 8.4 p24, update to version 8.4 p24 or later. For FreeBSD versions 9.x prior to 9.3 p10, update to version 9.3 p10 or later. For FreeBSD versions 10.0 prior to p18, update to version 10.0 p18 or later. For FreeBSD versions 10.1 prior to p6, update to version 10.1 p6 or later.

**Name of the Vulnerable Software and Affected Versions** Microsoft Windows versions prior to the fixed version Microsoft Windows Server 2012 versions prior to the fixed version Microsoft Windows RT versions prior to the fixed version **Description** A denial of service issue exists due to improper handling of a malicious HTTP header by the HTTP protocol stack (HTTP.sys). This can be exploited by an attacker sending a specially crafted HTTP header to an affected Windows server or client, triggering an infinite loop in the HTTP protocol stack. **Recommendations** For Microsoft Windows 8, update to a version that includes the fix for this issue. For Microsoft Windows Server 2012, update to a version that includes the fix for this issue. For Microsoft Windows RT, update to a version that includes the fix for this issue. As a temporary workaround, consider restricting access to the HTTP protocol stack (HTTP.sys) to minimize the risk of exploitation.