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Ranjivost Cisco ASA i FTD softvera

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Cisco Security Advisory: Cisco Adaptive Security Appliance Software and Cisco Firepower Threat Defense Software Denial of Service Vulnerability

Advisory ID: cisco-sa-20181031-asaftd-sip-dos

Revision: 1.0

For Public Release: 2018 October 31 19:30 GMT

Last Updated: 2018 October 31 19:30 GMT

CVE ID(s): CVE-2018-15454

CVSS Score v(3): 8.6 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H

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Summary

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A vulnerability in the Session Initiation Protocol (SIP) inspection engine of Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to cause an affected device to reload or trigger high CPU, resulting in a denial of service (DoS) condition.

The vulnerability is due to improper handling of SIP traffic. An attacker could exploit this vulnerability by sending SIP requests designed to specifically trigger this issue at a high rate across an affected device.

Software updates that address this vulnerability are not yet available. There are no workarounds that address this vulnerability. Mitigation options that address this vulnerability are available.

This advisory is available at the following link:

https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20181031-asaftd-sip-dos [“https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20181031-asaftd-sip-dos”]

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