CVE-2022-23537
asterisk - security update
9.8
CRITICAL
CVSS 3.1
EPSS 0.42%
Description
PJSIP is a free and open source multimedia communication library written in C language implementing standard based protocols such as SIP, SDP, RTP, STUN, TURN, and ICE. Buffer overread is possible when parsing a specially crafted STUN message with unknown attribute. The vulnerability affects applications that uses STUN including PJNATH and PJSUA-LIB. The patch is available as a commit in the master branch (2.13.1).
How to fix CVE-2022-23537
To remediate CVE-2022-23537, upgrade the affected package to a fixed version below.
- —upgrade to 18.20.2-r0 or later
- —upgrade to 1:16.28.0~dfsg-0+deb11u2 or later
- —upgrade to 1:16.28.0~dfsg-0+deb10u2 or later
- —upgrade to 1:16.28.0~dfsg-0+deb11u2 or later
- —upgrade to 20210112.2.b757bac~ds1-1+deb11u1 or later
Is CVE-2022-23537 being exploited?
Low — EPSS is 0.4%, meaning exploitation activity has not been observed at scale.
Affected packages (5)
- from 0, < 18.20.2-r0
- from 0, < 1:16.28.0~dfsg-0+deb11u2
- from 0, < 1:16.28.0~dfsg-0+deb10u2
- from 0, < 1:16.28.0~dfsg-0+deb11u2
- from 0, < 20210112.2.b757bac~ds1-1+deb11u1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | CRITICAL9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |