CVE-2017-16671
8.8
HIGH
CVSS 3.1
EPSS 3.6%
Description
A Buffer Overflow issue was discovered in Asterisk Open Source 13 before 13.18.1, 14 before 14.7.1, and 15 before 15.1.1 and Certified Asterisk 13.13 before 13.13-cert7. No size checking is done when setting the user field for Party B on a CDR. Thus, it is possible for someone to use an arbitrarily large string and write past the end of the user field storage buffer. NOTE: this is different from CVE-2017-7617, which was only about the Party A buffer.
How to fix CVE-2017-16671
To remediate CVE-2017-16671, upgrade the affected package to a fixed version below.
- —upgrade to 1:13.18.1~dfsg-1 or later
Is CVE-2017-16671 being exploited?
Low — EPSS is 3.6%, meaning exploitation activity has not been observed at scale.
Affected packages (1)
- from 0, < 1:13.18.1~dfsg-1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH8.8 | CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |