CVE-2016-9937

CVSS V2 Medium 5 CVSS V3 High 7.5
Description
An issue was discovered in Asterisk Open Source 13.12.x and 13.13.x before 13.13.1 and 14.x before 14.2.1. If an SDP offer or answer is received with the Opus codec and with the format parameters separated using a space the code responsible for parsing will recursively call itself until it crashes. This occurs as the code does not properly handle spaces separating the parameters. This does NOT require the endpoint to have Opus configured in Asterisk. This also does not require the endpoint to be authenticated. If guest is enabled for chan_sip or anonymous in chan_pjsip an SDP offer or answer is still processed and the crash occurs.
Overview
  • CVE ID
  • CVE-2016-9937
  • Assigner
  • cve@mitre.org
  • Vulnerability Status
  • Modified
  • Published Version
  • 2016-12-12T21:59:00
  • Last Modified Date
  • 2017-07-27T01:29:07
Weakness Enumerations
CWE URL
CWE-119 http://cwe.mitre.org/data/definitions/119.html
CPE Configuration (Product)
CPE Vulnerable Operator Version Start Version End
cpe:2.3:a:digium:asterisk:13.12:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:digium:asterisk:13.13:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:digium:asterisk:14.0:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:digium:asterisk:14.1:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:digium:asterisk:14.01:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:digium:asterisk:14.1.1:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:digium:asterisk:14.1.2:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:digium:asterisk:14.02:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:digium:asterisk:14.2:*:*:*:*:*:*:* 1 OR
CVSS Version 2
  • Version
  • 2.0
  • Vector String
  • AV:N/AC:L/Au:N/C:N/I:N/A:P
  • Access Vector
  • NETWORK
  • Access Compatibility
  • LOW
  • Authentication
  • NONE
  • Confidentiality Impact
  • NONE
  • Integrity Impact
  • NONE
  • Availability Impact
  • PARTIAL
  • Base Score
  • 5
  • Severity
  • MEDIUM
  • Exploitability Score
  • 10
  • Impact Score
  • 2.9
CVSS Version 3
  • Version
  • 3.0
  • Vector String
  • CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  • Attack Vector
  • NETWORK
  • Attack Compatibility
  • LOW
  • Privileges Required
  • NONE
  • User Interaction
  • NONE
  • Scope
  • UNCHANGED
  • Confidentiality Impact
  • NONE
  • Availability Impact
  • HIGH
  • Base Score
  • 7.5
  • Base Severity
  • HIGH
  • Exploitability Score
  • 3.9
  • Impact Score
  • 3.6
References
Reference URL Reference Tags
https://issues.asterisk.org/jira/browse/ASTERISK-26579 Patch Vendor Advisory
http://downloads.asterisk.org/pub/security/AST-2016-008-13.diff Patch Vendor Advisory
http://downloads.asterisk.org/pub/security/AST-2016-008-14.diff Patch Vendor Advisory
http://downloads.asterisk.org/pub/security/AST-2016-008.html Patch Vendor Advisory
http://www.securityfocus.com/bid/94792 Third Party Advisory VDB Entry
http://www.securitytracker.com/id/1037407
Sources
Source Name Source URL
NIST https://nvd.nist.gov/vuln/detail/CVE-2016-9937
MITRE https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-9937
History
Created Old Value New Value Data Type Notes
2022-05-10 09:17:49 Added to TrackCVE
2022-12-02 12:22:48 2016-12-12T21:59Z 2016-12-12T21:59:00 CVE Published Date updated
2022-12-02 12:22:48 2017-07-27T01:29:07 CVE Modified Date updated
2022-12-02 12:22:48 Modified Vulnerability Status updated