Time-of-check Time-of-use (TOCTOU) Race Condition in Insyde Kernel
| Risk | Low |
| Patch available | YES |
| Number of vulnerabilities | 1 |
| CVE-ID | CVE-2022-32471 |
| CWE-ID | CWE-367 |
| Exploitation vector | Local |
| Public exploit | N/A |
| Vulnerable software Subscribe |
Insyde Kernel Operating systems & Components / Operating system |
| Vendor |
Security Bulletin
This security bulletin contains one low risk vulnerability.
1) Time-of-check Time-of-use (TOCTOU) Race Condition
EUVDB-ID: #VU80860
Risk: Low
CVSSv3.1: 6.1 [CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]
CVE-ID: CVE-2022-32471
CWE-ID:
CWE-367 - Time-of-check Time-of-use (TOCTOU) Race Condition
Exploit availability: No
DescriptionThe vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a time-of-check, time-of-use (TOCTOU) race condition in IhisiSmm in InsydeH2O. A local user can gain elevated privileges on the target system.
MitigationInstall updates from vendor's website.
Vulnerable software versionsInsyde Kernel: before 5.5 05.52.45
External linkshttp://www.insyde.com/security-pledge
http://www.insyde.com/security-pledge/SA-2023003
Q & A
Can this vulnerability be exploited remotely?
No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
