CVE-2021-32558

Severity Score

7.5

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

An issue was discovered in Sangoma Asterisk 13.x before 13.38.3, 16.x before 16.19.1, 17.x before 17.9.4, and 18.x before 18.5.1, and Certified Asterisk before 16.8-cert10. If the IAX2 channel driver receives a packet that contains an unsupported media format, a crash can occur.

Se ha detectado un problema en Sangoma Asterisk versiones: 13.x anteriores a 13.38.3, versiones 16.x anteriores a 16.19.1, versiones 17.x anteriores a 17.9.4, y versiones 18.x anteriores a 18.5.1, y Certified Asterisk versiones anteriores a 16.8-cert10. Si el controlador del canal IAX2 recibe un paquete que contiene un formato de medios no compatible, puede ocurrir un bloqueo

*Credits: N/A

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

Attack Vector

Network

Attack Complexity

Low

Authentication

None

Confidentiality

None

Integrity

None

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2021-05-11 CVE Reserved
2021-07-22 CVE Published
2024-08-03 CVE Updated
2024-08-03 First Exploit
2024-10-13 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date

CWE

CWE-74: Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')

CAPEC

References (6)

URL	Tag	Source
https://lists.debian.org/debian-lts-announce/2021/08/msg00005.html	Mailing List

URL	Date	SRC
https://issues.asterisk.org/jira/browse/ASTERISK-29392	2024-08-03

URL	Date	SRC
http://packetstormsecurity.com/files/163639/Asterisk-Project-Security-Advisory-AST-2021-008.html	2021-11-28
http://seclists.org/fulldisclosure/2021/Jul/49	2021-11-28
https://downloads.asterisk.org/pub/security/AST-2021-008.html	2021-11-28

URL	Date	SRC
https://www.debian.org/security/2021/dsa-4999	2021-11-28

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Digium Search vendor "Digium"		Asterisk Search vendor "Digium" for product "Asterisk"				>= 13.0.0 < 13.38.3 Search vendor "Digium" for product "Asterisk" and version " >= 13.0.0 < 13.38.3"		-		Affected
Digium Search vendor "Digium"		Asterisk Search vendor "Digium" for product "Asterisk"				>= 16.0.0 < 16.19.1 Search vendor "Digium" for product "Asterisk" and version " >= 16.0.0 < 16.19.1"		-		Affected
Digium Search vendor "Digium"		Asterisk Search vendor "Digium" for product "Asterisk"				>= 17.0.0 < 17.9.4 Search vendor "Digium" for product "Asterisk" and version " >= 17.0.0 < 17.9.4"		-		Affected
Digium Search vendor "Digium"		Asterisk Search vendor "Digium" for product "Asterisk"				>= 18.0.0 < 18.15.1 Search vendor "Digium" for product "Asterisk" and version " >= 18.0.0 < 18.15.1"		-		Affected
Digium Search vendor "Digium"		Certified Asterisk Search vendor "Digium" for product "Certified Asterisk"				16.8 Search vendor "Digium" for product "Certified Asterisk" and version "16.8"		-		Affected
Digium Search vendor "Digium"		Certified Asterisk Search vendor "Digium" for product "Certified Asterisk"				16.8 Search vendor "Digium" for product "Certified Asterisk" and version "16.8"		cert1-rc1		Affected
Digium Search vendor "Digium"		Certified Asterisk Search vendor "Digium" for product "Certified Asterisk"				16.8 Search vendor "Digium" for product "Certified Asterisk" and version "16.8"		cert1-rc2		Affected
Digium Search vendor "Digium"		Certified Asterisk Search vendor "Digium" for product "Certified Asterisk"				16.8 Search vendor "Digium" for product "Certified Asterisk" and version "16.8"		cert1-rc3		Affected
Digium Search vendor "Digium"		Certified Asterisk Search vendor "Digium" for product "Certified Asterisk"				16.8 Search vendor "Digium" for product "Certified Asterisk" and version "16.8"		cert1-rc4		Affected
Digium Search vendor "Digium"		Certified Asterisk Search vendor "Digium" for product "Certified Asterisk"				16.8 Search vendor "Digium" for product "Certified Asterisk" and version "16.8"		cert2		Affected
Digium Search vendor "Digium"		Certified Asterisk Search vendor "Digium" for product "Certified Asterisk"				16.8 Search vendor "Digium" for product "Certified Asterisk" and version "16.8"		cert3		Affected
Digium Search vendor "Digium"		Certified Asterisk Search vendor "Digium" for product "Certified Asterisk"				16.8 Search vendor "Digium" for product "Certified Asterisk" and version "16.8"		cert4		Affected
Digium Search vendor "Digium"		Certified Asterisk Search vendor "Digium" for product "Certified Asterisk"				16.8 Search vendor "Digium" for product "Certified Asterisk" and version "16.8"		cert4-rc1		Affected
Digium Search vendor "Digium"		Certified Asterisk Search vendor "Digium" for product "Certified Asterisk"				16.8 Search vendor "Digium" for product "Certified Asterisk" and version "16.8"		cert4-rc2		Affected
Digium Search vendor "Digium"		Certified Asterisk Search vendor "Digium" for product "Certified Asterisk"				16.8 Search vendor "Digium" for product "Certified Asterisk" and version "16.8"		cert4-rc3		Affected
Digium Search vendor "Digium"		Certified Asterisk Search vendor "Digium" for product "Certified Asterisk"				16.8 Search vendor "Digium" for product "Certified Asterisk" and version "16.8"		cert4-rc4		Affected
Digium Search vendor "Digium"		Certified Asterisk Search vendor "Digium" for product "Certified Asterisk"				16.8 Search vendor "Digium" for product "Certified Asterisk" and version "16.8"		cert5		Affected
Digium Search vendor "Digium"		Certified Asterisk Search vendor "Digium" for product "Certified Asterisk"				16.8 Search vendor "Digium" for product "Certified Asterisk" and version "16.8"		cert6		Affected
Digium Search vendor "Digium"		Certified Asterisk Search vendor "Digium" for product "Certified Asterisk"				16.8 Search vendor "Digium" for product "Certified Asterisk" and version "16.8"		cert7		Affected
Digium Search vendor "Digium"		Certified Asterisk Search vendor "Digium" for product "Certified Asterisk"				16.8 Search vendor "Digium" for product "Certified Asterisk" and version "16.8"		cert8		Affected
Digium Search vendor "Digium"		Certified Asterisk Search vendor "Digium" for product "Certified Asterisk"				16.8 Search vendor "Digium" for product "Certified Asterisk" and version "16.8"		cert9		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"				11.0 Search vendor "Debian" for product "Debian Linux" and version "11.0"		-		Affected