CVE-2023-2007

kernel: DPT I2O controller TOCTOU information disclosure vulnerability

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Severity

Moderate

Red Hat Product Security

6.7

CVSS 3.1

Review impact separately from score.

Published · April 13, 2023

Updated · June 26, 2026

Description

A time-of-check time-of-use (TOCTOU) information disclosure vulnerability was found in the Linux Kernel DPT I2O controller. This issue results from the lack of proper locking when performing operations on an object, allowing a privileged local user to escalate privileges and execute arbitrary code in the context of the kernel.

Statement

No Red Hat products are affected by this flaw, as the i2o driver is not included in any shipping kernel release.

CVSS score applicability

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

Mitigation

No mitigation is specified in collected source.

CVSS / CWE

CVSS 3.1 · 6.7
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:N/A:L

CWE-367 · Time-of-check Time-of-use (TOCTOU) Race Condition