Integer overflow in Micrium uCOS-II and Micrium uCOS-III - CVE-2021-26706
Published: April 30, 2021
Vulnerability identifier: #VU52782
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-2021-26706
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 Mem_DynPoolCreate, Mem_DynPoolCreateHW and Mem_PoolCreate function. 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
Micrium uCOS-II
Micrium uCOS-III
Micrium uCOS-III
How to mitigate CVE-2021-26706
Install updates from vendor's website.
Micrium uCOS-II - update to 1.39.1
Micrium uCOS-III - update to 1.39.1
Micrium uCOS-III - update to 1.39.1