Vulnerability Name:

CVE-2011-2665 (CCN-68204)

Assigned:2011-06-22
Published:2011-06-22
Updated:2011-09-07
Summary: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.
Per: http://cwe.mitre.org/data/definitions/476.html
'CWE-476: NULL Pointer Dereference'
CVSS v3 Severity:5.3 Medium (CCN CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L)
Exploitability Metrics:Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): Low
CVSS v2 Severity:5.0 Medium (CVSS v2 Vector: AV:N/AC:L/Au:N/C:N/I:N/A:P)
3.7 Low (Temporal CVSS v2 Vector: AV:N/AC:L/Au:N/C:N/I:N/A:P/E:U/RL:OF/RC:C)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Authentication (Au): None
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): Partial
5.0 Medium (CCN CVSS v2 Vector: AV:N/AC:L/Au:N/C:N/I:N/A:P)
3.7 Low (CCN Temporal CVSS v2 Vector: AV:N/AC:L/Au:N/C:N/I:N/A:P/E:U/RL:OF/RC:C)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Athentication (Au): None
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): Partial
Vulnerability Type:CWE-Other
Vulnerability Consequences:Denial of Service
References:Source: MITRE
Type: CNA
CVE-2011-2665

Source: CONFIRM
Type: Patch
http://downloads.asterisk.org/pub/security/AST-2011-009-1.8.diff

Source: CCN
Type: AST-2011-009
Remote Crash Vulnerability in SIP channel driver

Source: CONFIRM
Type: Vendor Advisory
http://downloads.asterisk.org/pub/security/AST-2011-009.html

Source: FEDORA
Type: UNKNOWN
FEDORA-2011-8914

Source: CCN
Type: SA45048
Asterisk Multiple Denial of Service Vulnerabilities

Source: SECUNIA
Type: Vendor Advisory
45048

Source: SECUNIA
Type: UNKNOWN
45201

Source: SECUNIA
Type: UNKNOWN
45239

Source: DEBIAN
Type: UNKNOWN
DSA-2276

Source: CCN
Type: OSVDB ID: 73308
Asterisk channels/sip/reqresp_parser.c get_in_brackets_full() Function NULL Dereference DoS

Source: CCN
Type: BID-48431
Asterisk Multiple Remote Denial of Service Vulnerabilities

Source: XF
Type: UNKNOWN
asterisk-getinbracketsfull-dos(68204)

Vulnerable Configuration:Configuration 1:
  • cpe:/a:digium:asterisk:1.8.0:*:*:*:*:*:*:*
  • OR cpe:/a:digium:asterisk:1.8.0:beta1:*:*:*:*:*:*
  • OR cpe:/a:digium:asterisk:1.8.0:beta2:*:*:*:*:*:*
  • OR cpe:/a:digium:asterisk:1.8.0:beta3:*:*:*:*:*:*
  • OR cpe:/a:digium:asterisk:1.8.0:beta4:*:*:*:*:*:*
  • OR cpe:/a:digium:asterisk:1.8.0:beta5:*:*:*:*:*:*
  • OR cpe:/a:digium:asterisk:1.8.0:rc2:*:*:*:*:*:*
  • OR cpe:/a:digium:asterisk:1.8.0:rc3:*:*:*:*:*:*
  • OR cpe:/a:digium:asterisk:1.8.0:rc4:*:*:*:*:*:*
  • OR cpe:/a:digium:asterisk:1.8.0:rc5:*:*:*:*:*:*
  • OR cpe:/a:digium:asterisk:1.8.1:*:*:*:*:*:*:*
  • OR cpe:/a:digium:asterisk:1.8.1:rc1:*:*:*:*:*:*
  • OR cpe:/a:digium:asterisk:1.8.1.1:*:*:*:*:*:*:*
  • OR cpe:/a:digium:asterisk:1.8.1.2:*:*:*:*:*:*:*
  • OR cpe:/a:digium:asterisk:1.8.2:*:*:*:*:*:*:*
  • OR cpe:/a:digium:asterisk:1.8.2.1:*:*:*:*:*:*:*
  • OR cpe:/a:digium:asterisk:1.8.2.2:*:*:*:*:*:*:*
  • OR cpe:/a:digium:asterisk:1.8.2.3:*:*:*:*:*:*:*
  • OR cpe:/a:digium:asterisk:1.8.2.4:*:*:*:*:*:*:*
  • OR cpe:/a:digium:asterisk:1.8.3:*:*:*:*:*:*:*
  • OR cpe:/a:digium:asterisk:1.8.3:rc1:*:*:*:*:*:*
  • OR cpe:/a:digium:asterisk:1.8.3:rc2:*:*:*:*:*:*
  • OR cpe:/a:digium:asterisk:1.8.3:rc3:*:*:*:*:*:*
  • OR cpe:/a:digium:asterisk:1.8.3.1:*:*:*:*:*:*:*
  • OR cpe:/a:digium:asterisk:1.8.3.2:*:*:*:*:*:*:*
  • OR cpe:/a:digium:asterisk:1.8.3.3:*:*:*:*:*:*:*
  • OR cpe:/a:digium:asterisk:1.8.4:*:*:*:*:*:*:*
  • OR cpe:/a:digium:asterisk:1.8.4:rc1:*:*:*:*:*:*
  • OR cpe:/a:digium:asterisk:1.8.4:rc2:*:*:*:*:*:*
  • OR cpe:/a:digium:asterisk:1.8.4:rc3:*:*:*:*:*:*
  • OR cpe:/a:digium:asterisk:1.8.4.1:*:*:*:*:*:*:*
  • OR cpe:/a:digium:asterisk:1.8.4.2:*:*:*:*:*:*:*

    • Configuration CCN 1:
  • cpe:/a:digium:asterisk:1.8.12:*:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    Oval Definitions
    Definition IDClassTitleLast Modified
    oval:com.ubuntu.precise:def:20112665000
    V
    		CVE-2011-2665 on Ubuntu 12.04 LTS (precise) - medium.
    2011-07-06
    BACK
    digium asterisk 1.8.0
    digium asterisk 1.8.0 beta1
    digium asterisk 1.8.0 beta2
    digium asterisk 1.8.0 beta3
    digium asterisk 1.8.0 beta4
    digium asterisk 1.8.0 beta5
    digium asterisk 1.8.0 rc2
    digium asterisk 1.8.0 rc3
    digium asterisk 1.8.0 rc4
    digium asterisk 1.8.0 rc5
    digium asterisk 1.8.1
    digium asterisk 1.8.1 rc1
    digium asterisk 1.8.1.1
    digium asterisk 1.8.1.2
    digium asterisk 1.8.2
    digium asterisk 1.8.2.1
    digium asterisk 1.8.2.2
    digium asterisk 1.8.2.3
    digium asterisk 1.8.2.4
    digium asterisk 1.8.3
    digium asterisk 1.8.3 rc1
    digium asterisk 1.8.3 rc2
    digium asterisk 1.8.3 rc3
    digium asterisk 1.8.3.1
    digium asterisk 1.8.3.2
    digium asterisk 1.8.3.3
    digium asterisk 1.8.4
    digium asterisk 1.8.4 rc1
    digium asterisk 1.8.4 rc2
    digium asterisk 1.8.4 rc3
    digium asterisk 1.8.4.1
    digium asterisk 1.8.4.2
    digium asterisk 1.8.12