CVE-2022-21722

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. In version 2.11.1 and prior, there are various cases where it is possible that certain incoming RTP/RTCP packets can potentially cause out-of-bound read access. This issue affects all users that use PJMEDIA and accept incoming RTP/RTCP. A patch is available as a commit in the `master` branch. There are no known workarounds.

How to fix CVE-2022-21722

To remediate CVE-2022-21722, upgrade the affected package to a fixed version below.

• —upgrade to 2.12-r0 or later
• —upgrade to 1:16.28.0~dfsg-0+deb11u1 or later
• —upgrade to 20210112.2.b757bac~ds1-1+deb11u1 or later

Is CVE-2022-21722 being exploited?

Low — EPSS is 0.5%, meaning exploitation activity has not been observed at scale.

Affected packages (3)

• from 0, < 2.12-r0
• from 0, < 1:16.28.0~dfsg-0+deb11u1
• from 0, < 20210112.2.b757bac~ds1-1+deb11u1

CVSS scores

References (2)

• ADVISORYsecurity.alpinelinux.org/vuln/CVE-2022-21722
• ADVISORYsecurity-tracker.debian.org/tracker/CVE-2022-21722