#VU56030 Integer overflow in BlackBerry products - CVE-2021-22156
Published: August 23, 2021
Vulnerability identifier: #VU56030
Vulnerability risk: High
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber
CVE-ID: CVE-2021-22156
CWE-ID: CWE-190
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerable software:
BlackBerry QNX SDP
QNX OS for Medical
QNX OS for Safety
BlackBerry QNX SDP
QNX OS for Medical
QNX OS for Safety
Software vendor:
BlackBerry
BlackBerry
Description
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to integer overflow in the "calloc()" function in the C runtime library. A remote attacker can pass specially crafted data to the application, trigger integer overflow and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
Remediation
Install updates from vendor's website.