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Vulnerability Details : CVE-2011-2216

reqresp_parser.c in the SIP channel driver in Asterisk Open Source 1.8.x before 1.8.4.2 does not initialize certain strings, which allows remote attackers to cause a denial of service (NULL pointer dereference and daemon crash) via a malformed Contact header.
Publish Date : 2011-06-06 Last Update Date : 2018-10-09
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- CVSS Scores & Vulnerability Types

CVSS Score
5.0
Confidentiality Impact None (There is no impact to the confidentiality of the system.)
Integrity Impact None (There is no impact to the integrity of the system)
Availability Impact Partial (There is reduced performance or interruptions in resource availability.)
Access Complexity Low (Specialized access conditions or extenuating circumstances do not exist. Very little knowledge or skill is required to exploit. )
Authentication Not required (Authentication is not required to exploit the vulnerability.)
Gained Access None
Vulnerability Type(s) Denial Of Service
CWE ID CWE id is not defined for this vulnerability

- Products Affected By CVE-2011-2216

# Product Type Vendor Product Version Update Edition Language
1 Application Digium Asterisk 1.8.0 Beta5 * * Version Details Vulnerabilities
2 Application Digium Asterisk 1.8.0 Beta4 * * Version Details Vulnerabilities
3 Application Digium Asterisk 1.8.0 RC5 * * Version Details Vulnerabilities
4 Application Digium Asterisk 1.8.0 Beta3 * * Version Details Vulnerabilities
5 Application Digium Asterisk 1.8.0 Beta1 * * Version Details Vulnerabilities
6 Application Digium Asterisk 1.8.0 RC4 * * Version Details Vulnerabilities
7 Application Digium Asterisk 1.8.0 Beta2 * * Version Details Vulnerabilities
8 Application Digium Asterisk 1.8.0 RC3 * * Version Details Vulnerabilities
9 Application Digium Asterisk 1.8.0 * * * Version Details Vulnerabilities
10 Application Digium Asterisk 1.8.0 RC2 * * Version Details Vulnerabilities
11 Application Digium Asterisk 1.8.1 RC1 * * Version Details Vulnerabilities
12 Application Digium Asterisk 1.8.1 * * * Version Details Vulnerabilities
13 Application Digium Asterisk 1.8.1.1 * * * Version Details Vulnerabilities
14 Application Digium Asterisk 1.8.1.2 * * * Version Details Vulnerabilities
15 Application Digium Asterisk 1.8.2 * * * Version Details Vulnerabilities
16 Application Digium Asterisk 1.8.2.1 * * * Version Details Vulnerabilities
17 Application Digium Asterisk 1.8.2.2 * * * Version Details Vulnerabilities
18 Application Digium Asterisk 1.8.2.3 * * * Version Details Vulnerabilities
19 Application Digium Asterisk 1.8.2.4 * * * Version Details Vulnerabilities
20 Application Digium Asterisk 1.8.3 RC1 * * Version Details Vulnerabilities
21 Application Digium Asterisk 1.8.3 RC2 * * Version Details Vulnerabilities
22 Application Digium Asterisk 1.8.3 * * * Version Details Vulnerabilities
23 Application Digium Asterisk 1.8.3 RC3 * * Version Details Vulnerabilities
24 Application Digium Asterisk 1.8.3.1 * * * Version Details Vulnerabilities
25 Application Digium Asterisk 1.8.3.2 * * * Version Details Vulnerabilities
26 Application Digium Asterisk 1.8.3.3 * * * Version Details Vulnerabilities
27 Application Digium Asterisk 1.8.4 * * * Version Details Vulnerabilities
28 Application Digium Asterisk 1.8.4 RC1 * * Version Details Vulnerabilities
29 Application Digium Asterisk 1.8.4 RC2 * * Version Details Vulnerabilities
30 Application Digium Asterisk 1.8.4 RC3 * * Version Details Vulnerabilities
31 Application Digium Asterisk 1.8.4.1 * * * Version Details Vulnerabilities

- Number Of Affected Versions By Product

Vendor Product Vulnerable Versions
Digium Asterisk 31

- References For CVE-2011-2216

https://exchange.xforce.ibmcloud.com/vulnerabilities/67812
XF asterisk-parseurifull-dos(67812)
http://lists.fedoraproject.org/pipermail/package-announce/2011-June/062013.html
FEDORA FEDORA-2011-8319
http://www.securityfocus.com/bid/48096
BID 48096 Asterisk 'Contact' Header SIP Channel Driver Denial of Service Vulnerability Release Date:2011-07-13
http://lists.fedoraproject.org/pipermail/package-announce/2011-July/062658.html
FEDORA FEDORA-2011-8983
http://secunia.com/advisories/44828
SECUNIA 44828
http://downloads.digium.com/pub/security/AST-2011-007.html CONFIRM
http://securitytracker.com/id?1025598
SECTRACK 1025598
http://osvdb.org/72752
OSVDB 72752 Asterisk SIP Channel Driver reqresp_parser.c parse_uri_full() Function Contact Header NULL Dereference Remote DoS Asterisk SIP Channel Driver reqresp_parser.c parse_uri_full() Function Contact Header NULL Dereference Remote DoS
http://www.securityfocus.com/archive/1/518236/100/0/threaded
BUGTRAQ 20110602 AST-2011-007

- Metasploit Modules Related To CVE-2011-2216

There are not any metasploit modules related to this CVE entry (Please visit www.metasploit.com for more information)


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