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.
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
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Advisories
| Source | ID | Title |
|---|---|---|
Ubuntu USN |
USN-4915-1 | Linux kernel (OEM) vulnerabilities |
Ubuntu USN |
USN-4917-1 | Linux kernel vulnerabilities |
References
History
No history.
Status: PUBLISHED
Assigner: canonical
Published:
Updated: 2024-09-17T03:54:52.527Z
Reserved: 2021-04-09T00:00:00.000Z
Link: CVE-2021-3492
No data.
Status : Modified
Published: 2021-04-17T05:15:13.113
Modified: 2024-11-21T06:21:40.257
Link: CVE-2021-3492
OpenCVE Enrichment
No data.
Ubuntu USN