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THREATINT
PUBLISHED

CVE-2023-6238

Kernel: nvme: memory corruption via unprivileged user passthrough



Assignerredhat
Reserved2023-11-21
Published2023-11-21
Updated2024-10-17

Description

A buffer overflow vulnerability was found in the NVM Express (NVMe) driver in the Linux kernel. Only privileged user could specify a small meta buffer and let the device perform larger Direct Memory Access (DMA) into the same buffer, overwriting unrelated kernel memory, causing random kernel crashes and memory corruption.



MEDIUM: 6.7CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

Product status

Default status
affected

Default status
unaffected

Default status
unaffected

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unaffected

Default status
unaffected

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unaffected

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unaffected

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unaffected

Default status
affected

Timeline

2023-10-25:Reported to Red Hat.
2023-10-13:Made public.

References

https://access.redhat.com/security/cve/CVE-2023-6238 vdb-entry

https://bugzilla.redhat.com/show_bug.cgi?id=2250834 (RHBZ#2250834) issue-tracking

cve.org CVE-2023-6238

nvd.nist.gov CVE-2023-6238

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