Vulnerability Name:

CVE-2014-8414 (CCN-98865)

Assigned:2014-11-20
Published:2014-11-20
Updated:2014-12-30
Summary:ConfBridge in Asterisk 11.x before 11.14.1 and Certified Asterisk 11.6 before 11.6-cert8 does not properly handle state changes, which allows remote attackers to cause a denial of service (channel hang and memory consumption) by causing transitions to be delayed, which triggers a state change from hung up to waiting for media.
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-399
Vulnerability Consequences:Denial of Service
References:Source: MITRE
Type: CNA
CVE-2014-8414

Source: CCN
Type: Asterisk Project Security Advisory - AST-2014-014
High call load may result in hung channels in ConfBridge

Source: CONFIRM
Type: UNKNOWN
http://downloads.asterisk.org/pub/security/AST-2014-014.html

Source: FULLDISC
Type: UNKNOWN
20141121 AST-2014-014: High call load may result in hung channels in ConfBridge.

Source: CCN
Type: BID-71222
Multiple Asterisk Products ConfBridge Denial of Service Vulnerability

Source: XF
Type: UNKNOWN
asterisk-confbridge-dos(98865)

Vulnerable Configuration:Configuration 1:
  • cpe:/a:digium:asterisk:*:*:*:*:lts:*:*:* (Version <= 11.14.0)

    • Configuration 2:
  • cpe:/a:digium:certified_asterisk:11.6:cert1:*:*:lts:*:*:*
  • OR cpe:/a:digium:certified_asterisk:11.6:cert2:*:*:lts:*:*:*
  • OR cpe:/a:digium:certified_asterisk:11.6:cert3:*:*:lts:*:*:*
  • OR cpe:/a:digium:certified_asterisk:11.6:cert4:*:*:lts:*:*:*
  • OR cpe:/a:digium:certified_asterisk:11.6:cert5:*:*:lts:*:*:*
  • OR cpe:/a:digium:certified_asterisk:11.6:cert6:*:*:lts:*:*:*
  • OR cpe:/a:digium:certified_asterisk:11.6:cert7:*:*:lts:*:*:*
  • OR cpe:/a:digium:certified_asterisk:11.6.0:*:*:*:lts:*:*:*

    • Configuration CCN 1:
  • cpe:/a:digium:certified_asterisk:11.6:cert10:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    Oval Definitions
    Definition IDClassTitleLast Modified
    oval:com.ubuntu.bionic:def:201484140000000
    V
    		CVE-2014-8414 on Ubuntu 18.04 LTS (bionic) - medium.
    2014-11-24
    oval:com.ubuntu.artful:def:20148414000
    V
    		CVE-2014-8414 on Ubuntu 17.10 (artful) - medium.
    2014-11-24
    oval:com.ubuntu.trusty:def:20148414000
    V
    		CVE-2014-8414 on Ubuntu 14.04 LTS (trusty) - medium.
    2014-11-24
    oval:com.ubuntu.xenial:def:201484140000000
    V
    		CVE-2014-8414 on Ubuntu 16.04 LTS (xenial) - medium.
    2014-11-24
    oval:com.ubuntu.bionic:def:20148414000
    V
    		CVE-2014-8414 on Ubuntu 18.04 LTS (bionic) - medium.
    2014-11-24
    oval:com.ubuntu.xenial:def:20148414000
    V
    		CVE-2014-8414 on Ubuntu 16.04 LTS (xenial) - medium.
    2014-11-24
    oval:com.ubuntu.cosmic:def:20148414000
    V
    		CVE-2014-8414 on Ubuntu 18.10 (cosmic) - medium.
    2014-11-24
    oval:com.ubuntu.cosmic:def:201484140000000
    V
    		CVE-2014-8414 on Ubuntu 18.10 (cosmic) - medium.
    2014-11-24
    oval:com.ubuntu.precise:def:20148414000
    V
    		CVE-2014-8414 on Ubuntu 12.04 LTS (precise) - medium.
    2014-11-24
    BACK
    digium asterisk *
    digium certified asterisk 11.6 cert1
    digium certified asterisk 11.6 cert2
    digium certified asterisk 11.6 cert3
    digium certified asterisk 11.6 cert4
    digium certified asterisk 11.6 cert5
    digium certified asterisk 11.6 cert6
    digium certified asterisk 11.6 cert7
    digium certified asterisk 11.6.0
    digium certified asterisk 11.6 cert10