Total vulnerabilities in the database
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.
| Software | From | Fixed in |
|---|---|---|
| canonical / ubuntu_linux | 18.04.1 | 20.04 |
| canonical / ubuntu_linux | - | 18.04 |
| canonical / ubuntu_linux | - | 20.10 |