VULNERABILITY INTELLIGENCE

CVE-2021-20265

CVSS score5.5 MEDIUM
EPSS probability0.34%
CISA KEVNot currently listed
Published2021-03-10
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Description

A flaw was found in the way memory resources were freed in the unix_stream_recvmsg function in the Linux kernel when a signal was pending. This flaw allows an unprivileged local user to crash the system by exhausting available memory. The highest threat from this vulnerability is to system availability.

Weakness classification

  • secalert@redhat.com: CWE-400
  • nvd@nist.gov: CWE-401

Primary references