VULNERABILITY INTELLIGENCE

CVE-2021-3714

CVSS score5.9 MEDIUM
EPSS probability1.63%
CISA KEVNot currently listed
Published2022-08-23
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N

Description

A flaw was found in the Linux kernels memory deduplication mechanism. Previous work has shown that memory deduplication can be attacked via a local exploitation mechanism. The same technique can be used if an attacker can upload page sized files and detect the change in access time from a networked service to determine if the page has been merged.

Weakness classification

  • secalert@redhat.com: CWE-200
  • nvd@nist.gov: NVD-CWE-noinfo

Primary references