CVE-2018-17281
asterisk - security update
7.5
HIGH
CVSS 3.1
EPSS 80.3%
Description
There is a stack consumption vulnerability in the res_http_websocket.so module of Asterisk through 13.23.0, 14.7.x through 14.7.7, and 15.x through 15.6.0 and Certified Asterisk through 13.21-cert2. It allows an attacker to crash Asterisk via a specially crafted HTTP request to upgrade the connection to a websocket.
How to fix CVE-2018-17281
To remediate CVE-2018-17281, upgrade the affected package to a fixed version below.
- —upgrade to 1:13.23.1~dfsg-1 or later
- —upgrade to 1:11.13.1~dfsg-2+deb8u6 or later
Is CVE-2018-17281 being exploited?
Likely — EPSS is 80.3%, placing CVE-2018-17281 in the top tier of vulnerabilities by exploitation probability. Prioritise patching.
Affected packages (2)
- from 0, < 1:13.23.1~dfsg-1
- from 0, < 1:11.13.1~dfsg-2+deb8u6
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 |