VULNERABILITY INTELLIGENCE

CVE-2023-3812

CVSS score7.8 HIGH
EPSS probability0.34%
CISA KEVNot currently listed
Published2023-07-24
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Description

An out-of-bounds memory access flaw was found in the Linux kernel’s TUN/TAP device driver functionality in how a user generates a malicious (too big) networking packet when napi frags is enabled. This flaw allows a local user to crash or potentially escalate their privileges on the system.

Weakness classification

  • secalert@redhat.com: CWE-787
  • nvd@nist.gov: CWE-416

Primary references