Description
Shiftfs, an out-of-tree stacking file system included in Ubuntu Linux kernels, did not properly handle faults occurring during copy_from_user() correctly. These could lead to either a double-free situation or memory not being freed at all. An attacker could use this to cause a denial of service (kernel memory exhaustion) or gain privileges via executing arbitrary code. AKA ZDI-CAN-13562.
Published: 2021-04-17
Score: 8.8 High
EPSS: 24.4% Moderate
KEV: No
Impact: n/a
Action: n/a
AI Analysis

Analysis and contextual insights are available on OpenCVE Cloud.

Remediation

No vendor fix or workaround currently provided.

Additional remediation guidance may be available on OpenCVE Cloud.

Tracking

Sign in to view the affected projects.

Advisories
Source ID Title
Ubuntu USN Ubuntu USN USN-4915-1 Linux kernel (OEM) vulnerabilities
Ubuntu USN Ubuntu USN USN-4917-1 Linux kernel vulnerabilities
History

No history.

Subscriptions

Canonical Ubuntu Linux
cve-icon MITRE

Status: PUBLISHED

Assigner: canonical

Published:

Updated: 2024-09-17T03:54:52.527Z

Reserved: 2021-04-09T00:00:00.000Z

Link: CVE-2021-3492

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2021-04-17T05:15:13.113

Modified: 2024-11-21T06:21:40.257

Link: CVE-2021-3492

cve-icon Redhat

Severity : Moderate

Publid Date: 2021-04-16T00:00:00Z

Links: CVE-2021-3492 - Bugzilla

cve-icon OpenCVE Enrichment

No data.

Weaknesses