CVE-2023-6238 — MEDIUM (6.7)

Vulnerability Description

A buffer overflow vulnerability was found in the NVM Express (NVMe) driver in the Linux kernel. Only privileged user could specify a small meta buffer and let the device perform larger Direct Memory Access (DMA) into the same buffer, overwriting unrelated kernel memory, causing random kernel crashes and memory corruption.

CVSS Score

6.7

MEDIUM

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

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

HIGH

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

HIGH

Integrity

HIGH

Availability

HIGH

Affected Products

Vendor	Product	Versions
Linux	Linux Kernel	-
Fedoraproject	Fedora	38

Related Weaknesses (CWE)

CWE-120

References

https://access.redhat.com/security/cve/CVE-2023-6238Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2250834Issue TrackingThird Party Advisory
https://access.redhat.com/security/cve/CVE-2023-6238Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2250834Issue TrackingThird Party Advisory

FAQ

What is CVE-2023-6238?

CVE-2023-6238 is a vulnerability with a CVSS score of 6.7 (MEDIUM). A buffer overflow vulnerability was found in the NVM Express (NVMe) driver in the Linux kernel. Only privileged user could specify a small meta buffer and let the device perform larger Direct Memory A...

How severe is CVE-2023-6238?

CVE-2023-6238 has been rated MEDIUM with a CVSS base score of 6.7/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2023-6238?

Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel, Fedoraproject Fedora.