CVE-2021-3492 — Ubuntu linux kernel shiftfs file system double free vulnerability
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 ei…
Published: 2021-04-17 · CVSS: 8.8 · CVSS 3.1
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.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7