Cisco IOS and IOS XE Software ISDN Interface Denial of Service Vulnerability

A vulnerability in the ISDN functions of Cisco IOS Software and Cisco IOS XE Software could allow an unauthenticated, remote attacker to cause the device to reload. The vulnerability is due to incorrect processing of specific values in the Q.931 information elements. An attacker could exploit this vulnerability by calling the affected device with specific Q.931 information elements being present. An exploit could allow the attacker to cause the device to reload, resulting in a denial of service (DoS) condition on an affected device.

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输入验证不恰当

Cisco IOS和IOS XE 输入验证错误漏洞

Cisco IOS和IOS XE都是美国思科（Cisco）公司的一套为其网络设备开发的操作系统。 Cisco IOS和IOS XE中的ISDN功能存在输入验证漏洞，该漏洞源于程序没有正确地处理Q.931消息元素中的值。远程攻击者可利用该漏洞造成设备重新加载，导致拒绝服务。

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