CVE-2023-6121
Kernel: nvme: info leak due to out-of-bounds read in nvmet_ctrl_find_get
CVSS Score
4.3
EPSS Score
0.0%
EPSS Percentile
0th
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).
| CWE | CWE-125 |
| Vendor | red hat |
| Product | red hat enterprise linux 8 |
| Published | Nov 16, 2023 |
| Last Updated | Nov 6, 2025 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
None
Availability
None
Affected Versions
Red Hat / Red Hat Enterprise Linux 8
All versions affected Red Hat / Red Hat Enterprise Linux 8
All versions affected Red Hat / Red Hat Enterprise Linux 9
All versions affected Red Hat / Red Hat Enterprise Linux 9
All versions affected Red Hat / Red Hat Enterprise Linux 6
All versions affected Red Hat / Red Hat Enterprise Linux 7
All versions affected Red Hat / Red Hat Enterprise Linux 7
All versions affected Red Hat / Red Hat Enterprise Linux 9
All versions affected References
access.redhat.com: https://access.redhat.com/errata/RHSA-2024:2394 access.redhat.com: https://access.redhat.com/errata/RHSA-2024:2950 access.redhat.com: https://access.redhat.com/errata/RHSA-2024:3138 access.redhat.com: https://access.redhat.com/security/cve/CVE-2023-6121 bugzilla.redhat.com: https://bugzilla.redhat.com/show_bug.cgi?id=2250043 lists.debian.org: https://lists.debian.org/debian-lts-announce/2024/01/msg00005.html
Credits
Red Hat would like to thank Alon Zahavi for reporting this issue.