First published: Thu Nov 16 2023(Updated: )
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).
Credit: secalert@redhat.com
Affected Software | Affected Version | How to fix |
---|---|---|
Redhat Enterprise Linux | =6.0 | |
Redhat Enterprise Linux | =7.0 | |
Redhat Enterprise Linux | =8.0 | |
Redhat Enterprise Linux | =9.0 |
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CVE-2023-6121 is an out-of-bounds read vulnerability in the NVMe-oF/TCP subsystem in the Linux kernel.
CVE-2023-6121 allows a remote attacker to send a crafted TCP packet, triggering a heap-based buffer overflow that could potentially lead to data leakage.
CVE-2023-6121 has a severity rating of medium with a CVSS score of 4.3.
To fix CVE-2023-6121, users are advised to apply the appropriate security patches provided by their respective Linux distributions or vendor.
More information about CVE-2023-6121 can be found at the following references: [Red Hat Security Advisory](https://access.redhat.com/security/cve/CVE-2023-6121) and [Red Hat Bugzilla](https://bugzilla.redhat.com/show_bug.cgi?id=2250043).