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CVE-2023-6356

HIGHCVSS 7.5/10EPSS 1.45%

Last modified

CVE-2023-6356 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. A flaw was found in the Linux kernel's NVMe driver. This issue may allow an unauthenticated malicious actor to send a set of crafted TCP packages when using NVMe over TCP, leading the NVMe driver to a NULL pointer dereference in the NVMe driver and causing kernel panic and a denial of service.. EPSS estimates a 1.45% chance of exploitation in the next 30 days.

Description

A flaw was found in the Linux kernel's NVMe driver. This issue may allow an unauthenticated malicious actor to send a set of crafted TCP packages when using NVMe over TCP, leading the NVMe driver to a NULL pointer dereference in the NVMe driver and causing kernel panic and a denial of service.

Metrics

CVSS 3.1
7.5/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS Probability
1.45%

70.0th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
RedhatCodeready Linux Builder Eus8.6
RedhatCodeready Linux Builder Eus9.2
RedhatCodeready Linux Builder Eus For Power Little Endian Eus8.6_ppc64le
RedhatCodeready Linux Builder Eus For Power Little Endian Eus9.2_ppc64le
RedhatCodeready Linux Builder For Arm64 Eus8.6_aarch64
RedhatCodeready Linux Builder For Arm64 Eus9.2_aarch64
RedhatCodeready Linux Builder For Ibm Z Systems Eus9.2_s390x
RedhatEnterprise Linux8.0
RedhatEnterprise Linux9.0
RedhatEnterprise Linux Eus8.6
RedhatEnterprise Linux Eus9.2
RedhatEnterprise Linux For Arm 64 Eus8.6_aarch64
RedhatEnterprise Linux For Arm 64 Eus9.2_aarch64
RedhatEnterprise Linux For Ibm Z Systems Eus8.6_s390x
RedhatEnterprise Linux For Ibm Z Systems Eus9.2_s390x
RedhatEnterprise Linux For Power Little Endian Eus8.6_ppc64le
RedhatEnterprise Linux For Power Little Endian Eus9.2_ppc64le
RedhatEnterprise Linux For Real Time9.2
RedhatEnterprise Linux For Real Time For Nfv9.2
RedhatEnterprise Linux Server Aus8.6
RedhatEnterprise Linux Server Aus9.2
RedhatEnterprise Linux Server For Power Little Endian Update Services For Sap Solutions8.6_ppc64le
RedhatEnterprise Linux Server For Power Little Endian Update Services For Sap Solutions9.2_ppc64le
RedhatEnterprise Linux Server Tus8.6
RedhatVirtualization Host4.0
LinuxLinux Kernel>= 5.0, < 5.4.268
LinuxLinux Kernel>= 5.5, < 5.10.209
LinuxLinux Kernel>= 5.11, < 5.15.148
LinuxLinux Kernel>= 5.16, < 6.1.75
LinuxLinux Kernel>= 6.2, < 6.6.14
LinuxLinux Kernel>= 6.7, < 6.7.2
DebianDebian Linux10.0

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2023-6356?
A flaw was found in the Linux kernel's NVMe driver. This issue may allow an unauthenticated malicious actor to send a set of crafted TCP packages when using NVMe over TCP, leading the NVMe driver to a NULL pointer dereference in the NVMe driver and causing kernel panic and a denial of service.
How severe is CVE-2023-6356?
CVE-2023-6356 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 1.45% probability of exploitation in the next 30 days.
How do I fix CVE-2023-6356?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2023-6356?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST