CVE-2016-9937
Asterisk Opus Codec Parsing Remote Code Execution Vulnerability
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.
INFO
Published Date :
Dec. 12, 2016, 9:59 p.m.
Last Modified :
July 27, 2017, 1:29 a.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
3.6
Exploitability Score :
3.9
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2016-9937.
| URL | Resource |
|---|---|
| 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 | |
| https://issues.asterisk.org/jira/browse/ASTERISK-26579 | Patch Vendor Advisory |
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2016-9937 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2016-9937 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
CVE Modified by [email protected]
Jul. 27, 2017
Action Type Old Value New Value Added Reference http://www.securitytracker.com/id/1037407 [No Types Assigned] -
Reanalysis by [email protected]
Jan. 03, 2017
Action Type Old Value New Value Changed CPE Configuration OR *cpe:2.3:a:asterisk:opensource:13.12:*:*:*:*:*:*:* *cpe:2.3:a:asterisk:opensource:13.13:*:*:*:*:*:*:* *cpe:2.3:a:asterisk:opensource:14.0:*:*:*:*:*:*:* *cpe:2.3:a:asterisk:opensource:14.01:*:*:*:*:*:*:* *cpe:2.3:a:asterisk:opensource:14.02:*:*:*:*:*:*:* *cpe:2.3:a:asterisk:opensource:14.1:*:*:*:*:*:*:* *cpe:2.3:a:asterisk:opensource:14.1.1:*:*:*:*:*:*:* *cpe:2.3:a:asterisk:opensource:14.1.2:*:*:*:*:*:*:* *cpe:2.3:a:asterisk:opensource:14.2:*:*:*:*:*:*:* OR *cpe:2.3:a:digium:asterisk:13.12:*:*:*:*:*:*:* *cpe:2.3:a:digium:asterisk:13.13:*:*:*:*:*:*:* *cpe:2.3:a:digium:asterisk:14.0:*:*:*:*:*:*:* *cpe:2.3:a:digium:asterisk:14.01:*:*:*:*:*:*:* *cpe:2.3:a:digium:asterisk:14.02:*:*:*:*:*:*:* *cpe:2.3:a:digium:asterisk:14.1:*:*:*:*:*:*:* *cpe:2.3:a:digium:asterisk:14.1.1:*:*:*:*:*:*:* *cpe:2.3:a:digium:asterisk:14.1.2:*:*:*:*:*:*:* *cpe:2.3:a:digium:asterisk:14.2:*:*:*:*:*:*:* -
Initial Analysis by [email protected]
Dec. 22, 2016
Action Type Old Value New Value Added CVSS V2 (AV:N/AC:L/Au:N/C:N/I:N/A:P) Added CVSS V3 AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Changed Reference Type https://issues.asterisk.org/jira/browse/ASTERISK-26579 No Types Assigned https://issues.asterisk.org/jira/browse/ASTERISK-26579 Vendor Advisory, Patch Changed Reference Type http://downloads.asterisk.org/pub/security/AST-2016-008-13.diff No Types Assigned http://downloads.asterisk.org/pub/security/AST-2016-008-13.diff Vendor Advisory, Patch Changed Reference Type http://downloads.asterisk.org/pub/security/AST-2016-008-14.diff No Types Assigned http://downloads.asterisk.org/pub/security/AST-2016-008-14.diff Vendor Advisory, Patch Changed Reference Type http://www.securityfocus.com/bid/94792 No Types Assigned http://www.securityfocus.com/bid/94792 Third Party Advisory, VDB Entry Changed Reference Type http://downloads.asterisk.org/pub/security/AST-2016-008.html No Types Assigned http://downloads.asterisk.org/pub/security/AST-2016-008.html Vendor Advisory, Patch Added CWE CWE-119 Added CPE Configuration OR *cpe:2.3:a:asterisk:opensource:13.12:*:*:*:*:*:*:* *cpe:2.3:a:asterisk:opensource:13.13:*:*:*:*:*:*:* *cpe:2.3:a:asterisk:opensource:14.0:*:*:*:*:*:*:* *cpe:2.3:a:asterisk:opensource:14.01:*:*:*:*:*:*:* *cpe:2.3:a:asterisk:opensource:14.02:*:*:*:*:*:*:* *cpe:2.3:a:asterisk:opensource:14.1:*:*:*:*:*:*:* *cpe:2.3:a:asterisk:opensource:14.1.1:*:*:*:*:*:*:* *cpe:2.3:a:asterisk:opensource:14.1.2:*:*:*:*:*:*:* *cpe:2.3:a:asterisk:opensource:14.2:*:*:*:*:*:*:* -
CVE Modified by [email protected]
Dec. 16, 2016
Action Type Old Value New Value Added Reference http://www.securityfocus.com/bid/94792 [No Types Assigned]
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2016-9937 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2016-9937
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
1.37 }} 0.00%
score
0.84179
percentile