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Vulnerability · Published Jan 27, 2022 · Assigned by GitHub_M

CVE-2022-21722Potential out-of-bound read during RTP/RTCP parsing in PJSIP

Critical 9.1

In plain English

A critical-severity out-of-bounds read in pjproject from pjsip. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 2.3% (higher than 84% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)9.1Critical
Exploit odds (30 days)2.3%top 16.3% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official 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.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Alpine:v3.20pjproject2.12-r0ALPINE-CVE-2022-21722
Alpine:v3.21pjproject2.12-r0ALPINE-CVE-2022-21722
Alpine:v3.22pjproject2.12-r0ALPINE-CVE-2022-21722
Alpine:v3.23pjproject2.12-r0ALPINE-CVE-2022-21722
Alpine:v3.24pjproject2.12-r0ALPINE-CVE-2022-21722
Debian:14asterisk1:18.12.0~dfsg+~cs6.12.40431413-1DEBIAN-CVE-2022-21722
Debian:12ring20230206.0~ds1-1DEBIAN-CVE-2022-21722

Affected products (as reported)

VendorProductVersions
pjsip pjproject <= 2.11.1

Weakness: CWE-125 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H

References