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CVE-2009-0871

Date: March 11, 2009

The SIP channel driver in Asterisk Open Source 1.4.22, 1.4.23, and 1.4.23.1; 1.6.0 before 1.6.0.6; 1.6.1 before 1.6.1.0-rc2; and Asterisk Business Edition C.2.3, with the pedantic option enabled, allows remote authenticated users to cause a denial of service (crash) via a SIP INVITE request without any headers, which triggers a NULL pointer dereference in the (1) sip_uri_headers_cmp and (2) sip_uri_params_cmp functions.

Severity Score

Related Resources (12)

http://osvdb.org/52568
http://bugs.digium.com/view.php?id=13547
http://www.securityfocus.com/archive/1/501656/100/0/threaded
http://bugs.digium.com/view.php?id=14417
https://people.canonical.com/~ubuntu-security/cve/CVE-2009-0871
http://secunia.com/advisories/34229
http://www.securityfocus.com/bid/34070
http://www.securitytracker.com/id?1021834
http://www.vupen.com/english/advisories/2009/0667
http://downloads.digium.com/pub/security/AST-2009-002.html
https://nvd.nist.gov/vuln/detail/CVE-2009-0871
https://www.mend.io/vulnerability-database/CVE-2009-0871

Severity Score

Weakness Type (CWE)

Input Validation

CWE-20

CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): HIGH
Privileges Required (PR): LOW
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): LOW

CVSS v2

Base Score:
Access Vector (AV): NETWORK
Access Complexity (AC): MEDIUM
Authentication (AU): SINGLE
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): PARTIAL
Additional information:

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