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THREATINT
PUBLISHED

CVE-2023-6238

Kernel: nvme: memory corruption via unprivileged user passthrough



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.

Reserved 2023-11-21 | Published 2023-11-21 | Updated 2024-10-17 | Assigner redhat


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

Problem types

Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')

Product status

Default status
affected

Default status
unaffected

Default status
unaffected

Default status
unaffected

Default status
unaffected

Default status
unaffected

Default status
unaffected

Default status
unaffected

Default status
affected

Timeline

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

References

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

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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