// For flags

CVE-2019-12654

Cisco IOS and IOS XE Software Session Initiation Protocol Denial of Service Vulnerability

Severity Score

7.5
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

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.

Una vulnerabilidad en la biblioteca común del Session Initiation Protocol (SIP) de los software Cisco IOS y IOS XE, podría permitir a un atacante remoto no autenticado desencadenar una recarga de un dispositivo afectado, resultando en una condición de denegación de servicio (DoS). La vulnerabilidad es debido a insuficientes controles de saneamiento sobre una estructura de datos interna. Un atacante podría explotar esta vulnerabilidad mediante el envío de una secuencia de mensajes SIP maliciosos hacia un dispositivo afectado. Una explotación podría permitir al atacante causar una desreferencia del puntero NULL, resultando en un bloqueo del proceso iosd. Esto desencadena una recarga del dispositivo.

*Credits: N/A
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Changed
Confidentiality
None
Integrity
None
Availability
High
Attack Vector
Network
Attack Complexity
Low
Authentication
None
Confidentiality
None
Integrity
None
Availability
Complete
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2019-06-04 CVE Reserved
  • 2019-09-25 CVE Published
  • 2023-07-08 EPSS Updated
  • 2024-09-17 CVE Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-476: NULL Pointer Dereference
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Cisco
Search vendor "Cisco"
Ios Xe
Search vendor "Cisco" for product "Ios Xe"
15.6\(1\)s4.2
Search vendor "Cisco" for product "Ios Xe" and version "15.6\(1\)s4.2"
-
Affected
in Cisco
Search vendor "Cisco"
1000 Integrated Services Router
Search vendor "Cisco" for product "1000 Integrated Services Router"
--
Safe
Cisco
Search vendor "Cisco"
Ios Xe
Search vendor "Cisco" for product "Ios Xe"
15.6\(1\)s4.2
Search vendor "Cisco" for product "Ios Xe" and version "15.6\(1\)s4.2"
-
Affected
in Cisco
Search vendor "Cisco"
1100 Integrated Services Router
Search vendor "Cisco" for product "1100 Integrated Services Router"
--
Safe
Cisco
Search vendor "Cisco"
Ios Xe
Search vendor "Cisco" for product "Ios Xe"
15.6\(1\)s4.2
Search vendor "Cisco" for product "Ios Xe" and version "15.6\(1\)s4.2"
-
Affected
in Cisco
Search vendor "Cisco"
4000 Integrated Services Router
Search vendor "Cisco" for product "4000 Integrated Services Router"
--
Safe
Cisco
Search vendor "Cisco"
Ios Xe
Search vendor "Cisco" for product "Ios Xe"
15.6\(1\)s4.2
Search vendor "Cisco" for product "Ios Xe" and version "15.6\(1\)s4.2"
-
Affected
in Cisco
Search vendor "Cisco"
4221 Integrated Services Router
Search vendor "Cisco" for product "4221 Integrated Services Router"
--
Safe
Cisco
Search vendor "Cisco"
Ios Xe
Search vendor "Cisco" for product "Ios Xe"
15.6\(1\)s4.2
Search vendor "Cisco" for product "Ios Xe" and version "15.6\(1\)s4.2"
-
Affected
in Cisco
Search vendor "Cisco"
4321 Integrated Services Router
Search vendor "Cisco" for product "4321 Integrated Services Router"
--
Safe
Cisco
Search vendor "Cisco"
Ios Xe
Search vendor "Cisco" for product "Ios Xe"
15.6\(1\)s4.2
Search vendor "Cisco" for product "Ios Xe" and version "15.6\(1\)s4.2"
-
Affected
in Cisco
Search vendor "Cisco"
4331 Integrated Services Router
Search vendor "Cisco" for product "4331 Integrated Services Router"
--
Safe
Cisco
Search vendor "Cisco"
Ios Xe
Search vendor "Cisco" for product "Ios Xe"
15.6\(1\)s4.2
Search vendor "Cisco" for product "Ios Xe" and version "15.6\(1\)s4.2"
-
Affected
in Cisco
Search vendor "Cisco"
4351 Integrated Services Router
Search vendor "Cisco" for product "4351 Integrated Services Router"
--
Safe
Cisco
Search vendor "Cisco"
Ios Xe
Search vendor "Cisco" for product "Ios Xe"
15.6\(1\)s4.2
Search vendor "Cisco" for product "Ios Xe" and version "15.6\(1\)s4.2"
-
Affected
in Cisco
Search vendor "Cisco"
4431 Integrated Services Router
Search vendor "Cisco" for product "4431 Integrated Services Router"
--
Safe
Cisco
Search vendor "Cisco"
Ios Xe
Search vendor "Cisco" for product "Ios Xe"
15.6\(1\)s4.2
Search vendor "Cisco" for product "Ios Xe" and version "15.6\(1\)s4.2"
-
Affected
in Cisco
Search vendor "Cisco"
4451-x Integrated Services Router
Search vendor "Cisco" for product "4451-x Integrated Services Router"
--
Safe
Cisco
Search vendor "Cisco"
Ios Xe
Search vendor "Cisco" for product "Ios Xe"
15.6\(1\)s4.2
Search vendor "Cisco" for product "Ios Xe" and version "15.6\(1\)s4.2"
-
Affected
in Cisco
Search vendor "Cisco"
Asr 1000
Search vendor "Cisco" for product "Asr 1000"
--
Safe
Cisco
Search vendor "Cisco"
Ios Xe
Search vendor "Cisco" for product "Ios Xe"
15.6\(1\)s4.2
Search vendor "Cisco" for product "Ios Xe" and version "15.6\(1\)s4.2"
-
Affected
in Cisco
Search vendor "Cisco"
Asr 1001-hx
Search vendor "Cisco" for product "Asr 1001-hx"
--
Safe
Cisco
Search vendor "Cisco"
Ios Xe
Search vendor "Cisco" for product "Ios Xe"
15.6\(1\)s4.2
Search vendor "Cisco" for product "Ios Xe" and version "15.6\(1\)s4.2"
-
Affected
in Cisco
Search vendor "Cisco"
Asr 1001-x
Search vendor "Cisco" for product "Asr 1001-x"
--
Safe
Cisco
Search vendor "Cisco"
Ios Xe
Search vendor "Cisco" for product "Ios Xe"
15.6\(1\)s4.2
Search vendor "Cisco" for product "Ios Xe" and version "15.6\(1\)s4.2"
-
Affected
in Cisco
Search vendor "Cisco"
Asr 1002-hx
Search vendor "Cisco" for product "Asr 1002-hx"
--
Safe
Cisco
Search vendor "Cisco"
Ios Xe
Search vendor "Cisco" for product "Ios Xe"
15.6\(1\)s4.2
Search vendor "Cisco" for product "Ios Xe" and version "15.6\(1\)s4.2"
-
Affected
in Cisco
Search vendor "Cisco"
Asr 1002-x
Search vendor "Cisco" for product "Asr 1002-x"
--
Safe
Cisco
Search vendor "Cisco"
Ios Xe
Search vendor "Cisco" for product "Ios Xe"
15.6\(1\)s4.2
Search vendor "Cisco" for product "Ios Xe" and version "15.6\(1\)s4.2"
-
Affected
in Cisco
Search vendor "Cisco"
Cloud Services Router 1000v
Search vendor "Cisco" for product "Cloud Services Router 1000v"
--
Safe
Cisco
Search vendor "Cisco"
Ios Xe
Search vendor "Cisco" for product "Ios Xe"
15.6\(1\)s4.2
Search vendor "Cisco" for product "Ios Xe" and version "15.6\(1\)s4.2"
-
Affected
in Cisco
Search vendor "Cisco"
Integrated Services Virtual Router
Search vendor "Cisco" for product "Integrated Services Virtual Router"
--
Safe
Cisco
Search vendor "Cisco"
Ios Xe
Search vendor "Cisco" for product "Ios Xe"
16.3.8
Search vendor "Cisco" for product "Ios Xe" and version "16.3.8"
-
Affected
in Cisco
Search vendor "Cisco"
1000 Integrated Services Router
Search vendor "Cisco" for product "1000 Integrated Services Router"
--
Safe
Cisco
Search vendor "Cisco"
Ios Xe
Search vendor "Cisco" for product "Ios Xe"
16.3.8
Search vendor "Cisco" for product "Ios Xe" and version "16.3.8"
-
Affected
in Cisco
Search vendor "Cisco"
1100 Integrated Services Router
Search vendor "Cisco" for product "1100 Integrated Services Router"
--
Safe
Cisco
Search vendor "Cisco"
Ios Xe
Search vendor "Cisco" for product "Ios Xe"
16.3.8
Search vendor "Cisco" for product "Ios Xe" and version "16.3.8"
-
Affected
in Cisco
Search vendor "Cisco"
4000 Integrated Services Router
Search vendor "Cisco" for product "4000 Integrated Services Router"
--
Safe
Cisco
Search vendor "Cisco"
Ios Xe
Search vendor "Cisco" for product "Ios Xe"
16.3.8
Search vendor "Cisco" for product "Ios Xe" and version "16.3.8"
-
Affected
in Cisco
Search vendor "Cisco"
4221 Integrated Services Router
Search vendor "Cisco" for product "4221 Integrated Services Router"
--
Safe
Cisco
Search vendor "Cisco"
Ios Xe
Search vendor "Cisco" for product "Ios Xe"
16.3.8
Search vendor "Cisco" for product "Ios Xe" and version "16.3.8"
-
Affected
in Cisco
Search vendor "Cisco"
4321 Integrated Services Router
Search vendor "Cisco" for product "4321 Integrated Services Router"
--
Safe
Cisco
Search vendor "Cisco"
Ios Xe
Search vendor "Cisco" for product "Ios Xe"
16.3.8
Search vendor "Cisco" for product "Ios Xe" and version "16.3.8"
-
Affected
in Cisco
Search vendor "Cisco"
4331 Integrated Services Router
Search vendor "Cisco" for product "4331 Integrated Services Router"
--
Safe
Cisco
Search vendor "Cisco"
Ios Xe
Search vendor "Cisco" for product "Ios Xe"
16.3.8
Search vendor "Cisco" for product "Ios Xe" and version "16.3.8"
-
Affected
in Cisco
Search vendor "Cisco"
4351 Integrated Services Router
Search vendor "Cisco" for product "4351 Integrated Services Router"
--
Safe
Cisco
Search vendor "Cisco"
Ios Xe
Search vendor "Cisco" for product "Ios Xe"
16.3.8
Search vendor "Cisco" for product "Ios Xe" and version "16.3.8"
-
Affected
in Cisco
Search vendor "Cisco"
4431 Integrated Services Router
Search vendor "Cisco" for product "4431 Integrated Services Router"
--
Safe
Cisco
Search vendor "Cisco"
Ios Xe
Search vendor "Cisco" for product "Ios Xe"
16.3.8
Search vendor "Cisco" for product "Ios Xe" and version "16.3.8"
-
Affected
in Cisco
Search vendor "Cisco"
4451-x Integrated Services Router
Search vendor "Cisco" for product "4451-x Integrated Services Router"
--
Safe
Cisco
Search vendor "Cisco"
Ios Xe
Search vendor "Cisco" for product "Ios Xe"
16.3.8
Search vendor "Cisco" for product "Ios Xe" and version "16.3.8"
-
Affected
in Cisco
Search vendor "Cisco"
Asr 1000
Search vendor "Cisco" for product "Asr 1000"
--
Safe
Cisco
Search vendor "Cisco"
Ios Xe
Search vendor "Cisco" for product "Ios Xe"
16.3.8
Search vendor "Cisco" for product "Ios Xe" and version "16.3.8"
-
Affected
in Cisco
Search vendor "Cisco"
Asr 1001-hx
Search vendor "Cisco" for product "Asr 1001-hx"
--
Safe
Cisco
Search vendor "Cisco"
Ios Xe
Search vendor "Cisco" for product "Ios Xe"
16.3.8
Search vendor "Cisco" for product "Ios Xe" and version "16.3.8"
-
Affected
in Cisco
Search vendor "Cisco"
Asr 1001-x
Search vendor "Cisco" for product "Asr 1001-x"
--
Safe
Cisco
Search vendor "Cisco"
Ios Xe
Search vendor "Cisco" for product "Ios Xe"
16.3.8
Search vendor "Cisco" for product "Ios Xe" and version "16.3.8"
-
Affected
in Cisco
Search vendor "Cisco"
Asr 1002-hx
Search vendor "Cisco" for product "Asr 1002-hx"
--
Safe
Cisco
Search vendor "Cisco"
Ios Xe
Search vendor "Cisco" for product "Ios Xe"
16.3.8
Search vendor "Cisco" for product "Ios Xe" and version "16.3.8"
-
Affected
in Cisco
Search vendor "Cisco"
Asr 1002-x
Search vendor "Cisco" for product "Asr 1002-x"
--
Safe
Cisco
Search vendor "Cisco"
Ios Xe
Search vendor "Cisco" for product "Ios Xe"
16.3.8
Search vendor "Cisco" for product "Ios Xe" and version "16.3.8"
-
Affected
in Cisco
Search vendor "Cisco"
Cloud Services Router 1000v
Search vendor "Cisco" for product "Cloud Services Router 1000v"
--
Safe
Cisco
Search vendor "Cisco"
Ios Xe
Search vendor "Cisco" for product "Ios Xe"
16.3.8
Search vendor "Cisco" for product "Ios Xe" and version "16.3.8"
-
Affected
in Cisco
Search vendor "Cisco"
Integrated Services Virtual Router
Search vendor "Cisco" for product "Integrated Services Virtual Router"
--
Safe
Cisco
Search vendor "Cisco"
Ios Xe
Search vendor "Cisco" for product "Ios Xe"
16.9.1
Search vendor "Cisco" for product "Ios Xe" and version "16.9.1"
-
Affected
in Cisco
Search vendor "Cisco"
1000 Integrated Services Router
Search vendor "Cisco" for product "1000 Integrated Services Router"
--
Safe
Cisco
Search vendor "Cisco"
Ios Xe
Search vendor "Cisco" for product "Ios Xe"
16.9.1
Search vendor "Cisco" for product "Ios Xe" and version "16.9.1"
-
Affected
in Cisco
Search vendor "Cisco"
1100 Integrated Services Router
Search vendor "Cisco" for product "1100 Integrated Services Router"
--
Safe
Cisco
Search vendor "Cisco"
Ios Xe
Search vendor "Cisco" for product "Ios Xe"
16.9.1
Search vendor "Cisco" for product "Ios Xe" and version "16.9.1"
-
Affected
in Cisco
Search vendor "Cisco"
4000 Integrated Services Router
Search vendor "Cisco" for product "4000 Integrated Services Router"
--
Safe
Cisco
Search vendor "Cisco"
Ios Xe
Search vendor "Cisco" for product "Ios Xe"
16.9.1
Search vendor "Cisco" for product "Ios Xe" and version "16.9.1"
-
Affected
in Cisco
Search vendor "Cisco"
4221 Integrated Services Router
Search vendor "Cisco" for product "4221 Integrated Services Router"
--
Safe
Cisco
Search vendor "Cisco"
Ios Xe
Search vendor "Cisco" for product "Ios Xe"
16.9.1
Search vendor "Cisco" for product "Ios Xe" and version "16.9.1"
-
Affected
in Cisco
Search vendor "Cisco"
4321 Integrated Services Router
Search vendor "Cisco" for product "4321 Integrated Services Router"
--
Safe
Cisco
Search vendor "Cisco"
Ios Xe
Search vendor "Cisco" for product "Ios Xe"
16.9.1
Search vendor "Cisco" for product "Ios Xe" and version "16.9.1"
-
Affected
in Cisco
Search vendor "Cisco"
4331 Integrated Services Router
Search vendor "Cisco" for product "4331 Integrated Services Router"
--
Safe
Cisco
Search vendor "Cisco"
Ios Xe
Search vendor "Cisco" for product "Ios Xe"
16.9.1
Search vendor "Cisco" for product "Ios Xe" and version "16.9.1"
-
Affected
in Cisco
Search vendor "Cisco"
4351 Integrated Services Router
Search vendor "Cisco" for product "4351 Integrated Services Router"
--
Safe
Cisco
Search vendor "Cisco"
Ios Xe
Search vendor "Cisco" for product "Ios Xe"
16.9.1
Search vendor "Cisco" for product "Ios Xe" and version "16.9.1"
-
Affected
in Cisco
Search vendor "Cisco"
4431 Integrated Services Router
Search vendor "Cisco" for product "4431 Integrated Services Router"
--
Safe
Cisco
Search vendor "Cisco"
Ios Xe
Search vendor "Cisco" for product "Ios Xe"
16.9.1
Search vendor "Cisco" for product "Ios Xe" and version "16.9.1"
-
Affected
in Cisco
Search vendor "Cisco"
4451-x Integrated Services Router
Search vendor "Cisco" for product "4451-x Integrated Services Router"
--
Safe
Cisco
Search vendor "Cisco"
Ios Xe
Search vendor "Cisco" for product "Ios Xe"
16.9.1
Search vendor "Cisco" for product "Ios Xe" and version "16.9.1"
-
Affected
in Cisco
Search vendor "Cisco"
Asr 1000
Search vendor "Cisco" for product "Asr 1000"
--
Safe
Cisco
Search vendor "Cisco"
Ios Xe
Search vendor "Cisco" for product "Ios Xe"
16.9.1
Search vendor "Cisco" for product "Ios Xe" and version "16.9.1"
-
Affected
in Cisco
Search vendor "Cisco"
Asr 1001-hx
Search vendor "Cisco" for product "Asr 1001-hx"
--
Safe
Cisco
Search vendor "Cisco"
Ios Xe
Search vendor "Cisco" for product "Ios Xe"
16.9.1
Search vendor "Cisco" for product "Ios Xe" and version "16.9.1"
-
Affected
in Cisco
Search vendor "Cisco"
Asr 1001-x
Search vendor "Cisco" for product "Asr 1001-x"
--
Safe
Cisco
Search vendor "Cisco"
Ios Xe
Search vendor "Cisco" for product "Ios Xe"
16.9.1
Search vendor "Cisco" for product "Ios Xe" and version "16.9.1"
-
Affected
in Cisco
Search vendor "Cisco"
Asr 1002-hx
Search vendor "Cisco" for product "Asr 1002-hx"
--
Safe
Cisco
Search vendor "Cisco"
Ios Xe
Search vendor "Cisco" for product "Ios Xe"
16.9.1
Search vendor "Cisco" for product "Ios Xe" and version "16.9.1"
-
Affected
in Cisco
Search vendor "Cisco"
Asr 1002-x
Search vendor "Cisco" for product "Asr 1002-x"
--
Safe
Cisco
Search vendor "Cisco"
Ios Xe
Search vendor "Cisco" for product "Ios Xe"
16.9.1
Search vendor "Cisco" for product "Ios Xe" and version "16.9.1"
-
Affected
in Cisco
Search vendor "Cisco"
Cloud Services Router 1000v
Search vendor "Cisco" for product "Cloud Services Router 1000v"
--
Safe
Cisco
Search vendor "Cisco"
Ios Xe
Search vendor "Cisco" for product "Ios Xe"
16.9.1
Search vendor "Cisco" for product "Ios Xe" and version "16.9.1"
-
Affected
in Cisco
Search vendor "Cisco"
Integrated Services Virtual Router
Search vendor "Cisco" for product "Integrated Services Virtual Router"
--
Safe