5.3 Medium
CVSS3
Attack Vector
LOCAL
Attack Complexity
HIGH
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
LOW
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:H
5.4 Medium
CVSS2
Access Vector
LOCAL
Access Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
NONE
Availability Impact
COMPLETE
AV:L/AC:M/Au:N/C:P/I:N/A:C
0.0004 Low
EPSS
Percentile
10.9%
A flaw was found in the Linux kernel’s implementation of displaying NUMA statistics, where displaying the scheduler statistics could trigger a use-after-free in show_numa_stats() and display the kernel memory to userspace. The highest threat from this vulnerability is to system availability.
As the NUMA features are built-in and enabled by default, the NUMA functionality can be disabled at boot time by providing the kernel parameter, numa=off.
The method of providing this parameter depends on the operating system version, see KCS article <https://access.redhat.com/solutions/23216>.
Disabling this feature may have significant performance impacts and the administrator should consider if the performance penalty is a problem.
If you need further assistance, see KCS article <https://access.redhat.com/solutions/41278> or contact Red Hat Global Support Services.
5.3 Medium
CVSS3
Attack Vector
LOCAL
Attack Complexity
HIGH
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
LOW
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:H
5.4 Medium
CVSS2
Access Vector
LOCAL
Access Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
NONE
Availability Impact
COMPLETE
AV:L/AC:M/Au:N/C:P/I:N/A:C
0.0004 Low
EPSS
Percentile
10.9%