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The DHCP server on Cisco Adaptive Security Appliances (ASA) 5500 series devices, and the ASA Services Module (ASASM) in Cisco Catalyst 6500 series devices, with software 7.0 before 7.2(5.8), 7.1 before 7.2(5.8), 7.2 before 7.2(5.8), 8.0 before 8.0(5.28), 8.1 before 8.1(2.56), 8.2 before 8.2(5.27), 8.3 before 8.3(2.31), 8.4 before 8.4(3.10), 8.5 before 8.5(1.9), and 8.6 before 8.6(1.5) does not properly allocate memory for DHCP packets, which allows remote attackers to cause a denial of service (device reload) via a series of crafted IPv4 packets, aka Bug ID CSCtw84068.

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Cisco ASA 5500/Cisco Catalyst 6500 DHCP拒绝服务漏洞

Cisco ASA是美国思科（Cisco）公司的一套防火墙设备。该设备还包括IPS（入侵防御系统）、SSL VPN、IPSec VPN、反垃圾邮件等功能。 Cisco Adaptive Security Appliances (ASA) 5500系列设备中的DHCP服务器、Cisco Catalyst 6500系列设备软件7.2(5.8)之前的7.0版本、7.2(5.8)之前的7.1版本、7.2(5.8)之前的7.2版本、8.0(5.28)之前的8.0版本、8.1(2.56)之前的8.1版本、8.2(5.

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