UBUNTU-CVE-2021-3492
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.
02 / AFFECTED SOFTWARE
Affected packages
6 explicit affected versions
6 explicit affected versions
24 explicit affected versions
23 explicit affected versions
1 explicit affected versions
16 explicit affected versions
1 explicit affected versions
7 explicit affected versions
1 explicit affected versions
26 explicit affected versions
34 explicit affected versions
25 explicit affected versions
10 explicit affected versions
11 explicit affected versions
1 explicit affected versions
8 explicit affected versions
26 explicit affected versions
13 explicit affected versions
17 explicit affected versions
28 explicit affected versions
10 explicit affected versions
11 explicit affected versions
26 explicit affected versions
22 explicit affected versions
1 explicit affected versions
6 explicit affected versions
16 explicit affected versions
1 explicit affected versions
16 explicit affected versions
1 explicit affected versions
6 explicit affected versions
15 explicit affected versions
44 explicit affected versions
16 explicit affected versions
11 explicit affected versions
16 explicit affected versions
38 explicit affected versions
9 explicit affected versions
16 explicit affected versions
15 explicit affected versions
39 explicit affected versions
1 explicit affected versions
12 explicit affected versions
19 explicit affected versions
4 explicit affected versions
6 explicit affected versions
1 explicit affected versions
03 / CONNECTIONS
Connected vulnerabilities
04 / EVIDENCE
Source records
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.
05 / REFERENCES