CVE-2018-7286

Asterisk chan_pjsip 15.2.0 - 'INVITE' Denial of Service

Severity Score

6.5

*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

An issue was discovered in Asterisk through 13.19.1, 14.x through 14.7.5, and 15.x through 15.2.1, and Certified Asterisk through 13.18-cert2. res_pjsip allows remote authenticated users to crash Asterisk (segmentation fault) by sending a number of SIP INVITE messages on a TCP or TLS connection and then suddenly closing the connection.

Se ha descubierto un problema en Asterisk hasta la versión 13.19.1, versiones 14.x hasta la 14.7.5 y versiones 15.x hasta la 15.2.1; así como Certified Asterisk hasta la versión 13.18-cert2. res_pjsip permite que usuarios remotos autenticados provoquen el cierre inesperado de Asterisk (fallo de segmentación) mediante el envío de mensajes SIP INVITE en una conexión TCP o TLS para después cerrar la conexión repentinamente.

Multiple vulnerabilities have been discovered in Asterisk, an open source PBX and telephony toolkit, which may result in denial of service or information disclosure. For the stable distribution (stretch), these problems have been fixed in version 1:13.14.1~dfsg-2+deb9u4.

*Credits: N/A

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

Attack Vector

Network

Attack Complexity

Low

Authentication

Single

Confidentiality

None

Integrity

None

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2018-02-21 CVE Reserved
2018-02-22 CVE Published
2018-02-26 First Exploit
2024-08-05 CVE Updated
2025-06-16 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date

CWE

CAPEC

References (7)

URL	Tag	Source
http://www.securityfocus.com/bid/103129	Third Party Advisory
http://www.securitytracker.com/id/1040417	Third Party Advisory

URL	Date	SRC
https://packetstorm.news/files/id/146580	2018-02-26
https://www.exploit-db.com/exploits/44181	2024-08-05

URL	Date	SRC

URL	Date	SRC
http://downloads.asterisk.org/pub/security/AST-2018-005.html	2019-10-03
https://issues.asterisk.org/jira/browse/ASTERISK-27618	2019-10-03
https://www.debian.org/security/2018/dsa-4320	2019-10-03

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Digium Search vendor "Digium"		Asterisk Search vendor "Digium" for product "Asterisk"				>= 14.0.0 <= 14.7.5 Search vendor "Digium" for product "Asterisk" and version " >= 14.0.0 <= 14.7.5"		-		Affected
Digium Search vendor "Digium"		Asterisk Search vendor "Digium" for product "Asterisk"				>= 15.0.0 <= 15.2.1 Search vendor "Digium" for product "Asterisk" and version " >= 15.0.0 <= 15.2.1"		-		Affected
Digium Search vendor "Digium"		Asterisk Search vendor "Digium" for product "Asterisk"				13.19.1 Search vendor "Digium" for product "Asterisk" and version "13.19.1"		-		Affected
Digium Search vendor "Digium"		Certified Asterisk Search vendor "Digium" for product "Certified Asterisk"				<= 13.18 Search vendor "Digium" for product "Certified Asterisk" and version " <= 13.18"		-		Affected
Debian Search vendor "Debian"		Debian Linux Search vendor "Debian" for product "Debian Linux"				9.0 Search vendor "Debian" for product "Debian Linux" and version "9.0"		-		Affected