CVEvulnerability

CVE-2016-9937

7.5 HIGH Published 2016-12-12 Modified 2026-06-17 Official page ↗
Status
Modified
Published
2016-12-12
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.0 ([email protected])
7.5 HIGH — CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS 2.0 ([email protected])
5.0 MEDIUM — AV:N/AC:L/Au:N/C:N/I:N/A:P
Weaknesses
CWE-119

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.

Affected configurations

• digium asterisk 13.12 • digium asterisk 13.13 • digium asterisk 14.0 • digium asterisk 14.1 • digium asterisk 14.01 • digium asterisk 14.1.1 • digium asterisk 14.1.2 • digium asterisk 14.02 • digium asterisk 14.2

Related

Weakness · CWE (1)

  • CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer weakness

References