Integer overflow in BlackBerry products - CVE-2021-22156
Published: August 23, 2021
Vulnerability identifier: #VU56030
CSH Severity: High
CVSS v4: 9.3 [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]
CVE-ID: CVE-2021-22156
CWE-ID: CWE-190
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
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.
Affected software
BlackBerry QNX SDP
QNX OS for Medical
QNX OS for Safety
QNX OS for Medical
QNX OS for Safety
How to mitigate CVE-2021-22156
Install updates from vendor's website.
BlackBerry QNX SDP - update to 6.6.0
QNX OS for Medical - update to 1.1.1
QNX OS for Safety - update to 1.0.2
QNX OS for Medical - update to 1.1.1
QNX OS for Safety - update to 1.0.2