CVE-2019-12654

published 2019-09-25

CVE-2019-12654: A vulnerability in the common Session Initiation Protocol (SIP) library of Cisco IOS and IOS XE Software could allow an unauthenticated, remote attacker to…

high 7.5 CVSS 3.1

AV N AC L PR N UI N S U C N I N A H

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.

Affected

5 ranges

Vendor	Product	Version range	Fixed in
cisco	cisco_ios_15.0_xa2	>= unspecified < n/a	n/a
cisco	ios_and_ios_xe	—	—
cisco	ios_xe	—	—
cisco	ios_xe	—	—
cisco	ios_xe	—	—

CWE-476