| Vulnerability Name: | CVE-2016-9937 (CCN-119607) | ||||||||||||||||||||
| Assigned: | 2016-11-11 | ||||||||||||||||||||
| Published: | 2016-11-11 | ||||||||||||||||||||
| Updated: | 2017-07-27 | ||||||||||||||||||||
| Summary: | 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. | ||||||||||||||||||||
| CVSS v3 Severity: | 7.5 High (CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H) 6.5 Medium (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C)
6.5 Medium (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C)
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| CVSS v2 Severity: | 5.0 Medium (CVSS v2 Vector: AV:N/AC:L/Au:N/C:N/I:N/A:P)
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| Vulnerability Type: | CWE-119 | ||||||||||||||||||||
| Vulnerability Consequences: | Denial of Service | ||||||||||||||||||||
| References: | Source: MITRE Type: CNA CVE-2016-9937 Source: CONFIRM Type: Patch, Vendor Advisory http://downloads.asterisk.org/pub/security/AST-2016-008-13.diff Source: CONFIRM Type: Patch, Vendor Advisory http://downloads.asterisk.org/pub/security/AST-2016-008-14.diff Source: CCN Type: Asterisk Project Security Advisory - AST-2016-008 Crash on SDP offer or answer from endpoint using Opus Source: CONFIRM Type: Patch, Vendor Advisory http://downloads.asterisk.org/pub/security/AST-2016-008.html Source: BID Type: Third Party Advisory, VDB Entry 94792 Source: CCN Type: BID-94792 Asterisk Open Source AST-2016-008 Denial of Service Vulnerability Source: SECTRACK Type: UNKNOWN 1037407 Source: XF Type: UNKNOWN asterisk-opus-dos(119607) Source: CONFIRM Type: Patch, Vendor Advisory https://issues.asterisk.org/jira/browse/ASTERISK-26579 | ||||||||||||||||||||
| Vulnerable Configuration: | Configuration 1: Denotes that component is vulnerable | ||||||||||||||||||||
| Oval Definitions | |||||||||||||||||||||
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