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CVE-2023-6121

Public on 2023-11-16
Modified on 2024-02-27
Description

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

Severity
Medium
See what this means
CVSS v3 Base Score
4.3
See breakdown

Affected Packages

Platform Package Release Date Advisory
Amazon Linux 2 - Kernel-5.10 Extra kernel 2024-01-05 21:40 ALAS2KERNEL-5.10-2024-045
Amazon Linux 2 - Kernel-5.10 Extra kernel 2024-01-19 02:20 ALAS2KERNEL-5.10-2024-047
Amazon Linux 2 - Kernel-5.15 Extra kernel 2024-01-05 21:40 ALAS2KERNEL-5.15-2024-033
Amazon Linux 2 - Kernel-5.15 Extra kernel 2024-01-19 02:20 ALAS2KERNEL-5.15-2024-035
Amazon Linux 2 - Kernel-5.4 Extra kernel 2024-01-03 23:00 ALAS2KERNEL-5.4-2024-057

CVSS Scores

Score Type Score Vector
Amazon Linux CVSSv3 4.3 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
NVD CVSSv3 4.3 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

References

Red Hat: CVE-2023-6121 Mitre: CVE-2023-6121 FAQs regarding Amazon Linux ALAS/CVE Severity