Lucene search

MitreCVE-2016-9937

HistoryDec 12, 2016 - 9:59 p.m.

CVE-2016-9937

2016-12-1221:59:00

CWE-119

mitre

web.nvd.nist.gov

asterisk

open source

cve-2016-9937

denial of service

sdp

opus codec

security vulnerability

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

AV:N/AC:L/Au:N/C:N/I:N/A:P

CVSS3

7.5

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS

0.014

Percentile

86.3%

JSON

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.

Affected configurations

Nvd

Node

digiumasteriskMatch13.12

digiumasteriskMatch13.13

digiumasteriskMatch14.0

digiumasteriskMatch14.1

digiumasteriskMatch14.01

digiumasteriskMatch14.1.1

digiumasteriskMatch14.1.2

digiumasteriskMatch14.02

digiumasteriskMatch14.2

VendorProductVersionCPE
digiumasterisk13.12cpe:2.3:a:digium:asterisk:13.12:*:*:*:*:*:*:*
digiumasterisk13.13cpe:2.3:a:digium:asterisk:13.13:*:*:*:*:*:*:*
digiumasterisk14.0cpe:2.3:a:digium:asterisk:14.0:*:*:*:*:*:*:*
digiumasterisk14.1cpe:2.3:a:digium:asterisk:14.1:*:*:*:*:*:*:*
digiumasterisk14.01cpe:2.3:a:digium:asterisk:14.01:*:*:*:*:*:*:*
digiumasterisk14.1.1cpe:2.3:a:digium:asterisk:14.1.1:*:*:*:*:*:*:*
digiumasterisk14.1.2cpe:2.3:a:digium:asterisk:14.1.2:*:*:*:*:*:*:*
digiumasterisk14.02cpe:2.3:a:digium:asterisk:14.02:*:*:*:*:*:*:*
digiumasterisk14.2cpe:2.3:a:digium:asterisk:14.2:*:*:*:*:*:*:*

Vendor	Product	Version	CPE
digium	asterisk	13.12	cpe:2.3:a:digium:asterisk:13.12:::::::*
digium	asterisk	13.13	cpe:2.3:a:digium:asterisk:13.13:::::::*
digium	asterisk	14.0	cpe:2.3:a:digium:asterisk:14.0:::::::*
digium	asterisk	14.1	cpe:2.3:a:digium:asterisk:14.1:::::::*
digium	asterisk	14.01	cpe:2.3:a:digium:asterisk:14.01:::::::*
digium	asterisk	14.1.1	cpe:2.3:a:digium:asterisk:14.1.1:::::::*
digium	asterisk	14.1.2	cpe:2.3:a:digium:asterisk:14.1.2:::::::*
digium	asterisk	14.02	cpe:2.3:a:digium:asterisk:14.02:::::::*
digium	asterisk	14.2	cpe:2.3:a:digium:asterisk:14.2:::::::*

References

downloads.asterisk.org/pub/security/AST-2016-008-13.diff

downloads.asterisk.org/pub/security/AST-2016-008-14.diff

downloads.asterisk.org/pub/security/AST-2016-008.html

www.securityfocus.com/bid/94792

www.securitytracker.com/id/1037407

issues.asterisk.org/jira/browse/ASTERISK-26579

Social References

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

AV:N/AC:L/Au:N/C:N/I:N/A:P

CVSS3

7.5

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS

0.014

Percentile

86.3%

JSON

Related for CVE-2016-9937