CVE-2014-2289

Gentoo Linux Security Advisory 201405-05

Severity Score

6.5

*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

res/res_pjsip_exten_state.c in the PJSIP channel driver in Asterisk Open Source 12.x before 12.1.0 allows remote authenticated users to cause a denial of service (crash) via a SUBSCRIBE request without any Accept headers, which triggers an invalid pointer dereference.

res/res_pjsip_exten_state.c en el controlador de canal PJSIP en Asterisk Open Source 12.x anterior a 12.1.0 permite a usuarios remotos autenticados causar una denegaci´´on de servicio (caída) a través de una solicitud SUBSCRIBE sin cabeceras Accept, lo que provoca una referencia de puntero invalida.

A remotely exploitable crash vulnerability exists in the PJSIP channel driver's handling of SUBSCRIBE requests. If a SUBSCRIBE request is received for the presence Event, and that request has no Accept headers, Asterisk will attempt to access an invalid pointer to the header location. Note that this issue was fixed during a re-architecture of the res_pjsip_pubsub module in Asterisk 12.1.0. As such, this issue has already been resolved in a released version of Asterisk. This notification is being released for users of Asterisk 12.0.0.

*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

Medium

Authentication

Single

Confidentiality

None

Integrity

None

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2014-03-05 CVE Reserved
2014-03-11 CVE Published
2024-08-06 CVE Updated
2025-03-30 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-20: Improper Input Validation

CAPEC

References (5)

URL	Tag	Source
https://issues.asterisk.org/jira/browse/ASTERISK-23139	X_refsource_confirm

URL	Date	SRC

URL	Date	SRC
http://downloads.asterisk.org/pub/security/AST-2014-004-12.diff	2014-04-21
http://downloads.asterisk.org/pub/security/AST-2014-004.html	2014-04-21

URL	Date	SRC
http://lists.fedoraproject.org/pipermail/package-announce/2014-March/130400.html	2014-04-21
http://lists.fedoraproject.org/pipermail/package-announce/2014-March/130426.html	2014-04-21

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"				12.0.0 Search vendor "Digium" for product "Asterisk" and version "12.0.0"		-		Affected
Digium Search vendor "Digium"		Asterisk Search vendor "Digium" for product "Asterisk"				12.1.0 Search vendor "Digium" for product "Asterisk" and version "12.1.0"		rc1		Affected
Digium Search vendor "Digium"		Asterisk Search vendor "Digium" for product "Asterisk"				12.1.0 Search vendor "Digium" for product "Asterisk" and version "12.1.0"		rc2		Affected
Digium Search vendor "Digium"		Asterisk Search vendor "Digium" for product "Asterisk"				12.1.0 Search vendor "Digium" for product "Asterisk" and version "12.1.0"		rc3		Affected