Integer overflow in LinkIt SDK - CVE-2021-30636
Published: April 30, 2021
Vulnerability identifier: #VU52780
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-2021-30636
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 memory allocation calls pvPortCalloc(calloc) and pvPortRealloc(realloc). 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
LinkIt SDK
How to mitigate CVE-2021-30636
Install updates from vendor's website.
LinkIt SDK - update to 4.6.1