VULNERABILITY INTELLIGENCE

CVE-2023-6238

CVSS score6.7 MEDIUM
EPSS probability0.29%
CISA KEVNot currently listed
Published2023-11-21
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

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.

Weakness classification

  • secalert@redhat.com: CWE-120
  • nvd@nist.gov: CWE-120

Primary references