CVE-2023-6121
MediumAn 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).
CVSS 3.1 score
4.3
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Weakness type
CWE-125CVE-2023-6121 is a Out-of-bounds Read vulnerability
What is Out-of-bounds Read?
The product reads data past the end or before the beginning of the intended buffer. Learn more on MITRE CWE
References
The following references provide additional information about CVE-2023-6121 including vendor advisories, patch commits, exploit details, and third-party analysis. Links are sourced from the NIST NVD database.
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Third Party Advisory
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Issue Tracking Third Party Advisory
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Frequently asked questions
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What is CVE-2023-6121?
CVE-2023-6121 is a Medium severity Linux kernel vulnerability with a CVSS score of 4.3 out of 10 , classified as an Out-of-bounds Read flaw (CWE-125) . CVE-2023-6121 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
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What is the CVSS score for CVE-2023-6121?
CVE-2023-6121 has a CVSS score of 4.3 out of 10, rated Medium severity (CVSS 3.1). The vector string is
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N. -
Is there a patch available for CVE-2023-6121?
No patch is currently available for CVE-2023-6121. Monitor the NIST NVD and your Linux distribution's security advisories for updates.
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Is CVE-2023-6121 actively exploited?
No — CVE-2023-6121 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.
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What is Out-of-bounds Read (CWE-125)?
The product reads data past the end or before the beginning of the intended buffer. View CWE-125 on MITRE CWE →