CVEvulnerability

CVE-2017-17850

7.5 HIGH Published 2017-12-27 Modified 2026-06-17 Official page ↗
Status
Modified
Published
2017-12-27
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-20

Description

An issue was discovered in Asterisk 13.18.4 and older, 14.7.4 and older, 15.1.4 and older, and 13.18-cert1 and older. A select set of SIP messages create a dialog in Asterisk. Those SIP messages must contain a contact header. For those messages, if the header was not present and the PJSIP channel driver was used, Asterisk would crash. The severity of this vulnerability is somewhat mitigated if authentication is enabled. If authentication is enabled, a user would have to first be authorized before reaching the crash point.

Affected configurations

• digium asterisk (>= 13.0.0 <= 13.18.4) • digium asterisk (>= 14.0.0 <= 14.7.4) • digium asterisk (>= 15.0.0 <= 15.1.4) • digium certified asterisk 13.1.0 • digium certified asterisk 13.8

Related

Weakness · CWE (1)

  • CWE-20 Improper Input Validation weakness

References