A Null pointer dereference vulnerability exists in Mozilla Network Security Services due to a missing NULL check in PK11_SignWithSymKey / ssl3_ComputeRecordMACConstantTime, which could let a remote malicious user cause a Denial of Service.

Linux kernel versions 4.9+ can be forced to make very expensive calls to tcp_collapse_ofo_queue() and tcp_prune_ofo_queue() for every incoming packet which can lead to a denial of service.

A vulnerability in the routine that loads DLL files in Cisco Meeting App for Windows could allow an authenticated, local attacker to run an executable file with privileges equivalent to those of Cisco Meeting App. The vulnerability is due to incomplete input validation of the path name for DLL files before they are loaded. An attacker could exploit this vulnerability by installing a crafted DLL file in a specific system directory. A successful exploit could allow the attacker to execute commands on the underlying Microsoft Windows host with privileges equivalent to those of Cisco Meeting App. The attacker would need valid user credentials to exploit this vulnerability. Cisco Bug IDs: CSCvd77907.

Windows Uniscribe in Microsoft Windows Server 2008 SP2 and R2 SP1; Windows 7 SP1; Office 2007 SP3; Office 2010 SP2; Word Viewer; Office for Mac 2011 and 2016; Skype for Business 2016; Lync 2013 SP1; Lync 2010; Lync 2010 Attendee; and Live Meeting 2007 Add-in and Console allows an attacker to execute code remotely via a specially crafted website or a specially crafted document or email attachment, aka "Microsoft Graphics Component Remote Code Execution."

A vulnerability in Cisco Meeting Server and Meeting App could allow an unauthenticated, remote attacker to execute arbitrary code on an affected system. This vulnerability affects the following products: Cisco Meeting Server releases prior to 2.0.1, Acano Server releases prior to 1.8.16 and prior to 1.9.3, Cisco Meeting App releases prior to 1.9.8, Acano Meeting Apps releases prior to 1.8.35. More Information: CSCva75942 CSCvb67878. Known Affected Releases: 1.81.92.0.

The encryption-processing feature in Cisco libSRTP before 1.5.3 allows remote attackers to cause a denial of service via crafted fields in SRTP packets, aka Bug ID CSCux00686.

win32k.sys in the kernel-mode drivers in Microsoft Windows XP SP2 and SP3, Windows Server 2003 SP2, Windows Vista SP1 and SP2, Windows Server 2008 Gold, SP2, R2, and R2 SP1, and Windows 7 Gold and SP1 allows local users to gain privileges via a crafted application that triggers a NULL pointer dereference, a different vulnerability than other "Vulnerability Type 2" CVEs listed in MS11-034, aka "Win32k Null Pointer De-reference Vulnerability."