The OSPF implementation in Cisco IOS 12.0 through 12.4 and 15.0 through 15.3, IOS-XE 2.x through 3.9.xS, ASA and PIX 7.x through 9.1, FWSM, NX-OS, and StarOS before 14.0.50488 does not properly validate Link State Advertisement (LSA) type 1 packets before performing operations on the LSA database, which allows remote attackers to cause a denial of service (routing disruption) or obtain sensitive packet information via a (1) unicast or (2) multicast packet, aka Bug IDs CSCug34485, CSCug34469, CSCug39762, CSCug63304, and CSCug39795.

Cisco Adaptive Security Appliances (ASA) 5500 series devices with software 7.0 before 7.0(8.11), 7.1 and 7.2 before 7.2(5.1), 8.0 before 8.0(5.19), 8.1 before 8.1(2.47), 8.2 before 8.2(2.19), and 8.3 before 8.3(1.8); Cisco PIX Security Appliances 500 series devices; and Cisco Firewall Services Module (aka FWSM) 3.1 before 3.1(20), 3.2 before 3.2(20), 4.0 before 4.0(15), and 4.1 before 4.1(5) allow remote attackers to cause a denial of service (device reload) via a malformed Skinny Client Control Protocol (SCCP) message, aka Bug IDs CSCtg69457 and CSCtl84952.

Cisco Adaptive Security Appliances (ASA) 5500 series devices with software 7.0 before 7.0(8.12), 7.1 and 7.2 before 7.2(5.2), 8.0 before 8.0(5.21), 8.1 before 8.1(2.49), 8.2 before 8.2(3.6), and 8.3 before 8.3(2.7) and Cisco PIX Security Appliances 500 series devices, when transparent firewall mode is configured but IPv6 is not configured, allow remote attackers to cause a denial of service (packet buffer exhaustion and device outage) via IPv6 traffic, aka Bug ID CSCtj04707.

The Neighbor Discovery (ND) protocol implementation in the IPv6 stack on Cisco Adaptive Security Appliances (ASA) 5500 series devices with software 8.2(3) and earlier, and Cisco PIX Security Appliances devices, allows remote attackers to cause a denial of service (CPU consumption and device hang) by sending many Router Advertisement (RA) messages with different source addresses, as demonstrated by the flood_router6 program in the thc-ipv6 package, aka Bug ID CSCti24526.

Unspecified vulnerability in the IKE implementation on Cisco Adaptive Security Appliances (ASA) 5500 series devices with software 7.0 before 7.0(8.11), 7.1 and 7.2 before 7.2(5), 8.0 before 8.0(5.15), 8.1 before 8.1(2.44), 8.2 before 8.2(2.10), and 8.3 before 8.3(1.1) and Cisco PIX Security Appliances 500 series devices allows remote attackers to cause a denial of service (device reload) via a crafted IKE message, aka Bug ID CSCte46507.

Unspecified vulnerability on Cisco Adaptive Security Appliances (ASA) 5500 Series devices 7.0 before 7.0(8)6, 7.1 before 7.1(2)82, 7.2 before 7.2(4)26, 8.0 before 8.0(4)24, and 8.1 before 8.1(2)14, when H.323 inspection is enabled, allows remote attackers to cause a denial of service (device reload) via a crafted H.323 packet.

Memory leak on Cisco Adaptive Security Appliances (ASA) 5500 Series and PIX Security Appliances 7.0 before 7.0(8)6, 7.1 before 7.1(2)82, 7.2 before 7.2(4)30, 8.0 before 8.0(4)28, and 8.1 before 8.1(2)19 allows remote attackers to cause a denial of service (memory consumption or device reload) via a crafted TCP packet.

Cisco Adaptive Security Appliances (ASA) 5500 Series and PIX Security Appliances 7.0 before 7.0(8)1, 7.1 before 7.1(2)74, 7.2 before 7.2(4)9, and 8.0 before 8.0(4)5 do not properly implement the implicit deny statement, which might allow remote attackers to successfully send packets that bypass intended access restrictions, aka Bug ID CSCsq91277.

Unspecified vulnerability in Cisco Adaptive Security Appliances (ASA) 5500 Series and PIX Security Appliances 7.0 before 7.0(8)3, 7.1 before 7.1(2)78, 7.2 before 7.2(4)16, 8.0 before 8.0(4)6, and 8.1 before 8.1(1)13, when configured as a VPN using Microsoft Windows NT Domain authentication, allows remote attackers to bypass VPN authentication via unknown vectors.

Cisco PIX 500 and ASA 5500 Series Security Appliances 7.0 before 7.0(4.14) and 7.1 before 7.1(2.1), and the FWSM 2.x before 2.3(4.12) and 3.x before 3.1(3.24), when "inspect http" is enabled, allows remote attackers to cause a denial of service (device reboot) via malformed HTTP traffic.