Connect your agent
AdvisoriesCriticalCheck your lockfilePluginHow it worksPricing Connect your agent

CVE record · CVE-2021-3492

Ubuntu linux kernel shiftfs file system double free vulnerability

CVSS 8.8 HighEPSS 0.015 · 74th percentile

Published by the CVE Program (CNA: canonical) at 17 Apr 2021, 04:20 UTC. agentprime has not analysed this yet, so whether it affects any app is not known. This CVE names a vendor and product rather than a package, so the lockfile check doesn’t match it.

Affected products, as the CNA wrote them
VendorProductVersions
Ubuntu Linux kernel
  • affected 5.8 kernel to before 5.8.0-50.56 custom
  • affected 5.4 kernel to before 5.4.0-72.80 custom
Identifiers
CVE-2021-3492
CNA
canonical
Weakness (CWE)
CWE-401 · CWE-415
Tags
Published
17 Apr 2021
Updated
17 Sept 2024

Not analysed yet

We haven’t published our own analysis of this CVE. If a person reviews it, this page will say what’s affected and what has to be true for it to matter.

Severity and exploitation

ScoreRatingCVSSVectorSource
8.8 High 3.1 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H CNA (canonical)
  • CISA KEV Not listed.
  • EPSS 0.015, the 74th percentile, on 6 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

This record came from the full history of the CVE Program, published 17 Apr 2021. New records show when each source confirmed them.

Sources

References from the CNA

Facts on this page come from the CVE List as the CNA published them, with CVSS from the sources named above, CISA KEV and FIRST EPSS. Vendors, products and versions are shown as the CNA wrote them. We don’t reproduce the CVE’s description.