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…

PriorityP341high7.5CVSS 3.1

AVNACLPRNUINSUCNINAH

EPSS

1.98%

78.5th percentile

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	—	—

CVSS provenance

nvdv3.17.5HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

nvdv3.08.6HIGHCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H

nvdv2.07.8HIGHAV:N/AC:L/Au:N/C:N/I:N/A:C

vendor_cisco8.6HIGH

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