Time-of-check Time-of-use (TOCTOU) Race Condition in Parallels Desktop - CVE-2021-31422
Published: April 23, 2021
Vulnerability identifier: #VU52512
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:L/AC:L/AT:P/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2021-31422
CWE-ID: CWE-367
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vendor: Parallels
Affected software:
Parallels Desktop
Parallels Desktop
Detailed vulnerability description
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to the lack of proper locking when performing operations on an object within the e1000e virtual device. A local administrator can escalate privileges and execute arbitrary code on the system.
How to mitigate CVE-2021-31422
Install updates from vendor's website.