// For flags

CVE-2011-2665

 

Severity Score

7.5
*CVSS v3

Exploit Likelihood

2.3%
*EPSS

Affected Versions

32
*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

reqresp_parser.c in the SIP channel driver in Asterisk Open Source 1.8.x before 1.8.4.3 allows remote attackers to cause a denial of service (NULL pointer dereference and daemon crash) via a SIP packet with a Contact header that lacks a < (less than) character.

reqresp_parser.c en el controlador de canal SIP en Asterisk Open Source v1.8.x anteriores a v1.8.4.3 permite a atacantes remotos provocar una denegación de servicio (desreferencia a puntero NULL y caída del demonio) a través de un paquete SIP con una cabecera Contact que carece de un carácter < (menos que).

*Credits: N/A
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High
Attack Vector
Network
Attack Complexity
Low
Authentication
None
Confidentiality
None
Integrity
None
Availability
Partial
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2011-07-06 CVE Reserved
  • 2011-07-06 CVE Published
  • 2024-08-06 CVE Updated
  • 2025-03-30 EPSS Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
CAPEC
Affected Vendors, Products, and Versions (32)