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.

Related CPE's


o

canonical

ubuntu_linux

3

Weaknesses



CWE-401CWE-415


CWE-401CWE-415

CVSS impact metrics


CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

8.8 · High

Information


Source identifier

[email protected]

Vulnerability status

Modified

Published

2021-04-17T05:15:13.113Z

5 years ago

Last modified

2026-06-17T04:05:12.033Z

3 months ago