CVE-2017-17850
7.5
HIGH
CVSS 3.1
EPSS 30.0%
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.
How to fix CVE-2017-17850
To remediate CVE-2017-17850, upgrade the affected package to a fixed version below.
- —upgrade to 1:13.18.5~dfsg-1 or later
Is CVE-2017-17850 being exploited?
Moderate — EPSS is 30.0%. Track this CVE but it's not at the top of the prioritisation list.
Affected packages (1)
- from 0, < 1:13.18.5~dfsg-1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH7.5 | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |