CVE-2023-6121 - CVE House
Back to Database
Status published Medium CVE-2023-6121

Kernel: nvme: info leak due to out-of-bounds read in nvmet_ctrl_find_get

Vulnerability Description

An out-of-bounds read vulnerability was found in the NVMe-oF/TCP subsystem in the Linux kernel. This issue may allow a remote attacker to send a crafted TCP packet, triggering a heap-based buffer overflow that results in kmalloc data being printed and potentially leaked to the kernel ring buffer (dmesg).

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

THREAT MONITOR

Am I Vulnerable?

Launch our assessment wizard to check if your infrastructure is exposed to • CVE-2023-6121

Credits & Attribution

The following person or organization is credited with identifying this vulnerability, as recorded in the NVD database:

  • Red Hat would like to thank Alon Zahavi for reporting this issue.

Affected Vendor

Affected Software

Red Hat Enterprise Linux 8, Red Hat Enterprise Linux 9, Red Hat Enterprise Linux 6, Red Hat Enterprise Linux 7
Vulnerable Versions:
0:4.18.0-553.rt7.342.el8_10, 0:4.18.0-553.el8_10, 0:5.14.0-427.13.1.el9_4

Timeline

Official Publish: November 16th, 2023
Last Modified: May 12th, 2026
Added to House: July 22nd, 2026

CVSS Vectors

V3: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

Weaknesses (CWE)