Cisco IOS and IOS XE Software Internet Key Exchange Version 2 Fragmentation Denial of Service Vulnerability

A vulnerability in the Internet Key Exchange IKE version 2 v2 fragmentation code of Cisco IOS and IOS XE Software could allow an unauthenticated, remote attacker to cause a reload of the affected system. The vulnerability is due to an improper handling of crafted, fragmented IKEv2 packets. An...

Cisco IOS and IOS XE Software IPv6 First Hop Security Denial of Service Vulnerabilities

Two vulnerabilities in the IPv6 first hop security feature of Cisco IOS and IOS XE Software could allow an unauthenticated, remote attacker to cause an affected device to reload. Cisco has released software updates that address these vulnerabilities. There are no workarounds to mitigate these...

Cisco IOS Software Intrusion Prevention System Denial of Service Vulnerability (cisco-sa-20120926-ios-ips)

Cisco IOS Software contains a vulnerability in the Intrusion Prevention System IPS feature that could allow an unauthenticated, remote attacker to cause a reload of an affected device if specific Cisco IOS IPS configurations exist. SPDX-FileCopyrightText: 2016 Greenbone AG Some text descriptions...

Cisco IOS Software RSVP Vulnerability

A vulnerability in the implementation of the Resource Reservation Protocol RSVP in Cisco IOS Software and Cisco IOS XE Software could allow an unauthenticated, remote attacker cause the device to reload. This vulnerability could be exploited repeatedly to cause an extended denial of service DoS...

Cisco IOS Software Network Address Translation Vulnerabilities

The Cisco IOS Software implementation of the network address translation NAT feature contains three vulnerabilities when translating IP packets that could allow an unauthenticated, remote attacker to cause a denial of service DoS condition. Cisco has released software updates that address these...

Cisco IOS Software Tunneled Traffic Queue Wedge Vulnerability

Cisco IOS Software contains a queue wedge vulnerability that can be triggered when processing IP tunneled packets. Only Cisco IOS Software running on the Cisco 10000 Series router has been demonstrated to be affected. Successful exploitation of this vulnerability may prevent traffic from...

Cisco IOS Software Session Initiation Protocol Denial of Service Vulnerabilities

Multiple vulnerabilities exist in the Session Initiation Protocol SIP implementation in Cisco IOS Software and Cisco IOS XE Software that could allow an unauthenticated, remote attacker to cause a reload of an affected device or trigger memory leaks that may result in system instabilities. Affect...

Cisco IOS Software IPsec Vulnerability

A malformed Internet Key Exchange IKE packet may cause a device running Cisco IOS Software to reload. Only Cisco 7200 Series and Cisco 7301 routers running Cisco IOS software with a VPN Acceleration Module 2+ VAM2+ installed are affected. Cisco has released software updates that address this...

Cisco IOS Software Crafted TCP Packet Denial of Service Vulnerability

Cisco IOS® Software is affected by a denial of service vulnerability that may allow a remote unauthenticated attacker to cause an affected device to reload or hang. The vulnerability may be triggered by a TCP segment containing crafted TCP options that is received during the TCP session...

Cisco IOS Software Tunnels Vulnerability

Cisco devices running affected versions of Cisco IOS Software are vulnerable to a denial of service DoS attack if configured for IP tunnels and Cisco Express Forwarding. Cisco has released software updates that address this vulnerability. This advisory is posted at...