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CVE-2022-21723

Published: 27 January 2022

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 versions 2.11.1 and prior, parsing an incoming SIP message that contains a malformed multipart can potentially cause out-of-bound read access. This issue affects all PJSIP users that accept SIP multipart. The patch is available as commit in the `master` branch. There are no known workarounds.

Priority

Medium

Cvss 3 Severity Score

9.1

Score breakdown

Status

Package Release Status
pjproject
Launchpad, Ubuntu, Debian
xenial Needs triage

bionic Needs triage

trusty Ignored
(end of standard support)
upstream Needs triage

ring
Launchpad, Ubuntu, Debian
trusty Ignored
(end of standard support)
xenial Ignored
(end of standard support)
impish Ignored
(end of life)
lunar Not vulnerable
(20230206.0~ds1-5)
upstream Needs triage

bionic
Released (20180228.1.503da2b~ds1-1ubuntu0.1~esm1)
Available with Ubuntu Pro
focal
Released (20190215.1.f152c98~ds1-1+deb10u2build0.20.04.1)
mantic Not vulnerable
(20230206.0~ds2-1.3)

Severity score breakdown

Parameter Value
Base score 9.1
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Scope Unchanged
Confidentiality High
Integrity impact None
Availability impact High
Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H