Vulnerability Details : CVE-2023-6121
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).
Vulnerability category: Overflow
Products affected by CVE-2023-6121
- cpe:2.3:o:redhat:enterprise_linux:6.0:*:*:*:*:*:*:*
- cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:*
- cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:*
- cpe:2.3:o:redhat:enterprise_linux:9.0:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2023-6121
0.27%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 67 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2023-6121
Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
---|---|---|---|---|---|---|
4.3
|
MEDIUM | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N |
2.8
|
1.4
|
NIST | |
4.3
|
MEDIUM | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N |
2.8
|
1.4
|
Red Hat, Inc. |
CWE ids for CVE-2023-6121
-
The product reads data past the end, or before the beginning, of the intended buffer.Assigned by:
- nvd@nist.gov (Primary)
- secalert@redhat.com (Secondary)
References for CVE-2023-6121
-
https://access.redhat.com/errata/RHSA-2024:2950
RHSA-2024:2950 - Security Advisory - Red Hat Customer Portal
-
https://access.redhat.com/errata/RHSA-2024:3138
RHSA-2024:3138 - Security Advisory - Red Hat Customer Portal
-
https://access.redhat.com/errata/RHSA-2024:2394
RHSA-2024:2394 - Security Advisory - Red Hat Customer Portal
-
https://lists.debian.org/debian-lts-announce/2024/01/msg00005.html
[SECURITY] [DLA 3711-1] linux-5.10 security update
-
https://bugzilla.redhat.com/show_bug.cgi?id=2250043
2250043 – (CVE-2023-6121) CVE-2023-6121 kernel: NVMe: info leak due to out-of-bounds read in nvmet_ctrl_find_getIssue Tracking;Third Party Advisory
-
https://access.redhat.com/security/cve/CVE-2023-6121
CVE-2023-6121- Red Hat Customer PortalThird Party Advisory
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