Nil-pointer dereference in CreateCustomVolumeFromBackup in LXD up to version 6.8 and 5.21 on Linux allows an authenticated user with can_create_storage_volumes permissions to cause a denial of service via a specially crafted custom-volume backup tarball that omits the expires_at snapshot field.
Attack Parameters
Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Privileges Required
Low
Basic privileges needed
User Interaction
None
No user interaction needed
Impact Assessment
Confidentiality
None
No data leak
Integrity
None
No data modification
Availability
High
Complete denial of service
CVSS Vector v3.1
Weakness Type (CWE)
Vulnerable Products 3
| Configuration | From (including) | Up to (excluding) |
|---|---|---|
|
Canonical Lxd
cpe:2.3:a:canonical:lxd:*:*:*:*:*:*:*:*
|
5.0.0
|
5.21.5
|
|
Canonical Lxd
cpe:2.3:a:canonical:lxd:*:*:*:*:*:*:*:*
|
6.0
|
6.9
|
|
Linux Linux_Kernel
cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*
|
— | — |