CVE-2011-4063

Gentoo Linux Security Advisory 201110-21

Severity Score

6.5

*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

chan_sip.c in the SIP channel driver in Asterisk Open Source 1.8.x before 1.8.7.1 and 10.x before 10.0.0-rc1 does not properly initialize variables during request parsing, which allows remote authenticated users to cause a denial of service (daemon crash) via a malformed request.

chan_sip.c en el driver de canal SIP de Asterisk Open Source v1.8.x antes de v1.8.7.1 y v10.x antes de v10.0.0-rc1 no inicializa correctamente las variables durante el análisis de la petición, lo que permite provocar una denegación de servicio (caída del demonio) a usuarios remotos autenticados mediante una solicitud mal formada.

Multiple vulnerabilities in Asterisk might allow unauthenticated remote attackers to execute arbitrary code. Versions less than 1.8.7.1 are affected.

*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

Complete

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2011-10-15 CVE Reserved
2011-10-17 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 (7)

URL	Tag	Source
http://secunia.com/advisories/46420	Third Party Advisory
http://securityreason.com/securityalert/8478	Third Party Advisory
http://www.securityfocus.com/archive/1/520141/100/0/threaded	Mailing List
http://www.securityfocus.com/bid/50177	Vdb Entry
http://www.securitytracker.com/id?1026191	Vdb Entry
https://exchange.xforce.ibmcloud.com/vulnerabilities/70706	Vdb Entry

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
http://downloads.digium.com/pub/security/AST-2011-012.html	2018-10-09

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Asterisk Search vendor "Asterisk"		Open Source Search vendor "Asterisk" for product "Open Source"				1.8.7 Search vendor "Asterisk" for product "Open Source" and version "1.8.7"		-		Affected
Asterisk Search vendor "Asterisk"		Open Source Search vendor "Asterisk" for product "Open Source"				10.0.0 Search vendor "Asterisk" for product "Open Source" and version "10.0.0"		-		Affected