CVE-2022-21723

Out-of-bounds read in multipart parsing in PJSIP

Severity Score

9.1

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

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.

PJSIP es una biblioteca de comunicación multimedia gratuita y de código abierto escrita en lenguaje C que implementa protocolos basados en estándares como SIP, SDP, RTP, STUN, TURN e ICE. En las versiones 2.11.1 y anteriores, el análisis de un mensaje SIP entrante que contiene una multiparte malformada puede causar potencialmente un acceso de lectura fuera de límites. Este problema afecta a todos los usuarios de PJSIP que aceptan multipartes SIP. El parche está disponible como commit en la rama "master". No se presentan medidas de mitigación conocidas

*Credits: N/A

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

None

Availability

High

Attack Vector

Network

Attack Complexity

Low

Authentication

None

Confidentiality

Partial

Integrity

None

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2021-11-16 CVE Reserved
2022-01-27 CVE Published
2024-08-03 CVE Updated
2024-09-02 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-125: Out-of-bounds Read

CAPEC

References (9)

URL	Tag	Source
http://packetstormsecurity.com/files/166227/Asterisk-Project-Security-Advisory-AST-2022-006.html	Third Party Advisory
https://lists.debian.org/debian-lts-announce/2022/03/msg00035.html	Mailing List
https://lists.debian.org/debian-lts-announce/2022/11/msg00021.html	Mailing List
https://lists.debian.org/debian-lts-announce/2023/08/msg00038.html	Mailing List

URL	Date	SRC

URL	Date	SRC
http://seclists.org/fulldisclosure/2022/Mar/2	2023-08-30
https://github.com/pjsip/pjproject/commit/077b465c33f0aec05a49cd2ca456f9a1b112e896	2023-08-30
https://github.com/pjsip/pjproject/security/advisories/GHSA-7fw8-54cv-r7pm	2023-08-30

URL	Date	SRC
https://security.gentoo.org/glsa/202210-37	2023-08-30
https://www.debian.org/security/2022/dsa-5285	2023-08-30

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Teluu Search vendor "Teluu"		Pjsip Search vendor "Teluu" for product "Pjsip"				<= 2.11.1 Search vendor "Teluu" for product "Pjsip" and version " <= 2.11.1"		-		Affected
Asterisk Search vendor "Asterisk"		Certified Asterisk Search vendor "Asterisk" for product "Certified Asterisk"				16.8.0 Search vendor "Asterisk" for product "Certified Asterisk" and version "16.8.0"		-		Affected
Asterisk Search vendor "Asterisk"		Certified Asterisk Search vendor "Asterisk" for product "Certified Asterisk"				16.8.0 Search vendor "Asterisk" for product "Certified Asterisk" and version "16.8.0"		cert1		Affected
Asterisk Search vendor "Asterisk"		Certified Asterisk Search vendor "Asterisk" for product "Certified Asterisk"				16.8.0 Search vendor "Asterisk" for product "Certified Asterisk" and version "16.8.0"		cert10		Affected
Asterisk Search vendor "Asterisk"		Certified Asterisk Search vendor "Asterisk" for product "Certified Asterisk"				16.8.0 Search vendor "Asterisk" for product "Certified Asterisk" and version "16.8.0"		cert11		Affected
Asterisk Search vendor "Asterisk"		Certified Asterisk Search vendor "Asterisk" for product "Certified Asterisk"				16.8.0 Search vendor "Asterisk" for product "Certified Asterisk" and version "16.8.0"		cert12		Affected
Asterisk Search vendor "Asterisk"		Certified Asterisk Search vendor "Asterisk" for product "Certified Asterisk"				16.8.0 Search vendor "Asterisk" for product "Certified Asterisk" and version "16.8.0"		cert2		Affected
Asterisk Search vendor "Asterisk"		Certified Asterisk Search vendor "Asterisk" for product "Certified Asterisk"				16.8.0 Search vendor "Asterisk" for product "Certified Asterisk" and version "16.8.0"		cert3		Affected
Asterisk Search vendor "Asterisk"		Certified Asterisk Search vendor "Asterisk" for product "Certified Asterisk"				16.8.0 Search vendor "Asterisk" for product "Certified Asterisk" and version "16.8.0"		cert4		Affected
Asterisk Search vendor "Asterisk"		Certified Asterisk Search vendor "Asterisk" for product "Certified Asterisk"				16.8.0 Search vendor "Asterisk" for product "Certified Asterisk" and version "16.8.0"		cert5		Affected
Asterisk Search vendor "Asterisk"		Certified Asterisk Search vendor "Asterisk" for product "Certified Asterisk"				16.8.0 Search vendor "Asterisk" for product "Certified Asterisk" and version "16.8.0"		cert6		Affected
Asterisk Search vendor "Asterisk"		Certified Asterisk Search vendor "Asterisk" for product "Certified Asterisk"				16.8.0 Search vendor "Asterisk" for product "Certified Asterisk" and version "16.8.0"		cert7		Affected
Asterisk Search vendor "Asterisk"		Certified Asterisk Search vendor "Asterisk" for product "Certified Asterisk"				16.8.0 Search vendor "Asterisk" for product "Certified Asterisk" and version "16.8.0"		cert8		Affected
Asterisk Search vendor "Asterisk"		Certified Asterisk Search vendor "Asterisk" for product "Certified Asterisk"				16.8.0 Search vendor "Asterisk" for product "Certified Asterisk" and version "16.8.0"		cert9		Affected
Sangoma Search vendor "Sangoma"		Asterisk Search vendor "Sangoma" for product "Asterisk"				>= 16.0.0 < 16.24.1 Search vendor "Sangoma" for product "Asterisk" and version " >= 16.0.0 < 16.24.1"		-		Affected
Sangoma Search vendor "Sangoma"		Asterisk Search vendor "Sangoma" for product "Asterisk"				>= 18.0.0 < 18.10.1 Search vendor "Sangoma" for product "Asterisk" and version " >= 18.0.0 < 18.10.1"		-		Affected
Sangoma Search vendor "Sangoma"		Asterisk Search vendor "Sangoma" for product "Asterisk"				>= 19.0.0 < 19.2.1 Search vendor "Sangoma" for product "Asterisk" and version " >= 19.0.0 < 19.2.1"		-		Affected
Debian Search vendor "Debian"		Debian Linux Search vendor "Debian" for product "Debian Linux"				9.0 Search vendor "Debian" for product "Debian Linux" and version "9.0"		-		Affected
Debian Search vendor "Debian"		Debian Linux Search vendor "Debian" for product "Debian Linux"				10.0 Search vendor "Debian" for product "Debian Linux" and version "10.0"		-		Affected