Cisco IOS XE Software IPSec Denial of Service Vulnerability

A vulnerability in the IPSec decryption routine of Cisco IOS XE Software could allow an unauthenticated, remote attacker to cause an affected device to reload, resulting in a denial of service (DoS) condition. This vulnerability is due to buffer exhaustion that occurs while traffic on a configured IPsec tunnel is being processed. An attacker could exploit this vulnerability by sending traffic to an affected device that has a maximum transmission unit (MTU) of 1800 bytes or greater. A successful exploit could allow the attacker to cause the device to reload. To exploit this vulnerability, the attacker may need access to the trusted network where the affected device is in order to send specific packets to be processed by the device. All network devices between the attacker and the affected device must support an MTU of 1800 bytes or greater. This access requirement could limit the possibility of a successful exploit.

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:N/A:H

输入验证不恰当

多款Cisco产品输入验证错误漏洞

Cisco IOS等都是美国思科（Cisco）公司的产品。Cisco IOS是一套为其网络设备开发的操作系统。IOS XE是一套为其网络设备开发的操作系统。Cisco IOS XE Software是一个操作系统。 Cisco IOS XE 存在输入验证错误漏洞，该漏洞源于攻击者可以通过 IPSec 导致 Cisco IOS XE 的致命错误，以触发拒绝服务。

N/A

输入验证错误