中文描述:

Cisco ASA 1000V Cloud Firewall等都是美国思科（Cisco）公司的产品。Cisco ASA 1000V Cloud Firewall是一套云防火墙解决方案。Cisco ASA 5500 Series Adaptive Security Appliances是下一代防火墙安全设备。Cisco ASA（Adaptive Security Appliances，自适应安全设备）Software是其中的一套防火墙和网络安全平台。该平台提供了对数据和网络资源的高度安全的访问等功能。 多款Cisco产品中的Cisco ASA Software的IPsec代码存在拒绝服务漏洞，该漏洞源于程序没有正确的解析畸形的IPsec数据包。远程攻击者可通过向受影响系统发送畸形的IPsec数据包利用该漏洞造成受影响系统重载。以下产品受到影响：Cisco ASA 1000V Cloud Firewall；Cisco ASA 5500 Series Adaptive Security Appliances；Cisco ASA 5500-X Series Next-Generation Firewalls；Cisco ASA Services Module for Cisco Catalyst 6500 Series Switches和Cisco 7600 Series Routers；Cisco Adaptive Security Virtual Appliance (ASAv)；Cisco Firepower 9300 ASA Security Module；Cisco ISA 3000 Industrial Security Appliance。

英文描述:

A vulnerability in the IPsec code of Cisco ASA Software could allow an authenticated, remote attacker to cause a reload of the affected system. The vulnerability is due to improper parsing of malformed IPsec packets. An attacker could exploit this vulnerability by sending malformed IPsec packets to the affected system. Note: Only traffic directed to the affected system can be used to exploit this vulnerability. This vulnerability affects systems configured in routed firewall mode only and in single or multiple context mode. This vulnerability can be triggered by IPv4 and IPv6 traffic. An attacker needs to establish a valid IPsec tunnel before exploiting this vulnerability. This vulnerability affects Cisco ASA Software running on the following products: Cisco ASA 1000V Cloud Firewall, Cisco ASA 5500 Series Adaptive Security Appliances, Cisco ASA 5500-X Series Next-Generation Firewalls, Cisco ASA Services Module for Cisco Catalyst 6500 Series Switches and Cisco 7600 Series Routers, Cisco Adaptive Security Virtual Appliance (ASAv), Cisco Firepower 9300 ASA Security Module, Cisco ISA 3000 Industrial Security Appliance. Fixed versions: 9.1(7.8) 9.2(4.15) 9.4(4) 9.5(3.2) 9.6(2). Cisco Bug IDs: CSCun16158.

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