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Cisco IOS: CVE-2019-12654: Cisco IOS and IOS XE Software Session Initiation Protocol Denial of Service Vulnerability

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Cisco IOS: CVE-2019-12654: Cisco IOS and IOS XE Software Session Initiation Protocol Denial of Service Vulnerability

Severity
8
CVSS
(AV:N/AC:L/Au:N/C:N/I:N/A:C)
Published
09/26/2019
Created
09/27/2019
Added
09/26/2019
Modified
09/02/2021

Description

A vulnerability in the common Session Initiation Protocol (SIP) library of Cisco IOS and IOS XE Software could allow an unauthenticated, remote attacker to trigger a reload of an affected device, resulting in a denial of service (DoS) condition. The vulnerability is due to insufficient sanity checks on an internal data structure. An attacker could exploit this vulnerability by sending a sequence of malicious SIP messages to an affected device. An exploit could allow the attacker to cause a NULL pointer dereference, resulting in a crash of the iosd process. This triggers a reload of the device.

Solution(s)

  • cisco-ios-upgrade-latest

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