Time-of-check Time-of-use (TOCTOU) Race Condition in PowerEdge T40 and PowerEdge T30 Mini Tower Server - CVE-2022-34398
Published: May 1, 2023
Vulnerability identifier: #VU75609
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2022-34398
CWE-ID: CWE-367
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vendor: Dell
Affected software:
PowerEdge T40
PowerEdge T30 Mini Tower Server
PowerEdge T40
PowerEdge T30 Mini Tower Server
Detailed vulnerability description
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a race condition. A local user can exploit the race and gain unauthorized access to sensitive information and escalate privileges on the system using a specifically timed DMA transaction during an SMI.
How to mitigate CVE-2022-34398
Install updates from vendor's website.