4.6 Medium
CVSS3
Attack Vector
PHYSICAL
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
4.9 Medium
CVSS2
Access Vector
LOCAL
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
COMPLETE
AV:L/AC:L/Au:N/C:N/I:N/A:C
0.001 Low
EPSS
Percentile
47.8%
A use-after-free vulnerability was found in the Linux kernel’s cpia2_usb driver. An attacker must have physical access to the system to utilize a malicious USB device to trigger the disconnect() functionality which is required to trigger this flaw. A local account is also required to take advantage of the use-after-free memory condition. System availability is the highest threat from this vulnerability.
As the cpia2 module will be auto-loaded when required, its use can be disabled by preventing the module from loading with the following instructions:
The system will need to be restarted if the cpia2 modules are loaded. In most circumstances, the cpia2 kernel modules will be unable to be unloaded while the hardware is in use. If the system requires this module to work correctly, this mitigation may not be suitable. If you need further assistance, see KCS article <https://access.redhat.com/solutions/41278> or contact Red Hat Global Support Services.
4.6 Medium
CVSS3
Attack Vector
PHYSICAL
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
4.9 Medium
CVSS2
Access Vector
LOCAL
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
COMPLETE
AV:L/AC:L/Au:N/C:N/I:N/A:C
0.001 Low
EPSS
Percentile
47.8%