CVE-2021-22156

Severity Score

9.8

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

An integer overflow vulnerability in the calloc() function of the C runtime library of affected versions of BlackBerry® QNX Software Development Platform (SDP) version(s) 6.5.0SP1 and earlier, QNX OS for Medical 1.1 and earlier, and QNX OS for Safety 1.0.1 and earlier that could allow an attacker to potentially perform a denial of service or execute arbitrary code.

Una vulnerabilidad de desbordamiento de enteros en la función calloc() de la biblioteca de tiempo de ejecución C de las versiones afectadas de BlackBerry® QNX Software Development Platform (SDP) versión(es) 6.5.0SP1 y anteriores, QNX OS for Medical versiones 1.1 y anteriores, y QNX OS for Safety versiones 1.0.1 y anteriores, que podría permitir a un atacante llevar a cabo potencialmente una denegación de servicio o ejecutar código arbitrario.

*Credits: N/A

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Attack Vector

Network

Attack Complexity

Medium

Authentication

None

Confidentiality

Partial

Integrity

Partial

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2021-01-04 CVE Reserved
2021-08-17 CVE Published
2024-07-23 EPSS Updated
2024-08-03 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-190: Integer Overflow or Wraparound

CAPEC

References (2)

URL	Tag	Source

URL	Date	SRC

URL	Date	SRC
https://support.blackberry.com/kb/articleDetail?articleNumber=000082334	2021-08-30

URL	Date	SRC
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-qnx-TOxjVPdL	2021-08-30

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Blackberry Search vendor "Blackberry"		Qnx Software Development Platform Search vendor "Blackberry" for product "Qnx Software Development Platform"				< 6.5.0 Search vendor "Blackberry" for product "Qnx Software Development Platform" and version " < 6.5.0"		-		Affected
Blackberry Search vendor "Blackberry"		Qnx Software Development Platform Search vendor "Blackberry" for product "Qnx Software Development Platform"				6.5.0 Search vendor "Blackberry" for product "Qnx Software Development Platform" and version "6.5.0"		-		Affected
Blackberry Search vendor "Blackberry"		Qnx Software Development Platform Search vendor "Blackberry" for product "Qnx Software Development Platform"				6.5.0 Search vendor "Blackberry" for product "Qnx Software Development Platform" and version "6.5.0"		sp1		Affected
Blackberry Search vendor "Blackberry"		Qnx Os For Medical Search vendor "Blackberry" for product "Qnx Os For Medical"				<= 1.1.1 Search vendor "Blackberry" for product "Qnx Os For Medical" and version " <= 1.1.1"		-		Affected
Blackberry Search vendor "Blackberry"		Qnx Os For Safety Search vendor "Blackberry" for product "Qnx Os For Safety"				<= 1.0.2 Search vendor "Blackberry" for product "Qnx Os For Safety" and version " <= 1.0.2"		-		Affected