7.8 High
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
7.2 High
CVSS2
Access Vector
LOCAL
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:L/AC:L/Au:N/C:C/I:C/A:C
0.002 Low
EPSS
Percentile
54.2%
The kernel packages contain the Linux kernel, the core of any Linux operating system.
Security Fix(es):
Modern operating systems implement virtualization of physical memory to efficiently use available system resources and provide inter-domain protection through access control and isolation. The L1TF issue was found in the way the x86 microprocessor designs have implemented speculative execution of instructions (a commonly used performance optimisation) in combination with handling of page-faults caused by terminated virtual to physical address resolving process. As a result, an unprivileged attacker could use this flaw to read privileged memory of the kernel or other processes and/or cross guest/host boundaries to read host memory by conducting targeted cache side-channel attacks. (CVE-2018-3620, CVE-2018-3646)
kernel: kvm: vmx: host GDT limit corruption (CVE-2018-10901)
For more details about the security issue(s), including the impact, a CVSS score, and other related information, refer to the CVE page(s) listed in the References section.
Red Hat would like to thank Intel OSSIRT (Intel.com) for reporting CVE-2018-3620 and CVE-2018-3646 and Vegard Nossum (Oracle Corporation) for reporting CVE-2018-10901.
OS | Version | Architecture | Package | Version | Filename |
---|---|---|---|---|---|
RedHat | 6 | i686 | kernel-devel | < 2.6.32-573.60.4.el6 | kernel-devel-2.6.32-573.60.4.el6.i686.rpm |
RedHat | 6 | noarch | kernel-firmware | < 2.6.32-573.60.4.el6 | kernel-firmware-2.6.32-573.60.4.el6.noarch.rpm |
RedHat | 6 | x86_64 | python-perf-debuginfo | < 2.6.32-573.60.4.el6 | python-perf-debuginfo-2.6.32-573.60.4.el6.x86_64.rpm |
RedHat | 6 | noarch | kernel-abi-whitelists | < 2.6.32-573.60.4.el6 | kernel-abi-whitelists-2.6.32-573.60.4.el6.noarch.rpm |
RedHat | 6 | ppc64 | kernel | < 2.6.32-573.60.4.el6 | kernel-2.6.32-573.60.4.el6.ppc64.rpm |
RedHat | 6 | s390x | kernel-debuginfo | < 2.6.32-573.60.4.el6 | kernel-debuginfo-2.6.32-573.60.4.el6.s390x.rpm |
RedHat | 6 | i686 | python-perf | < 2.6.32-573.60.4.el6 | python-perf-2.6.32-573.60.4.el6.i686.rpm |
RedHat | 6 | s390x | kernel-debug-debuginfo | < 2.6.32-573.60.4.el6 | kernel-debug-debuginfo-2.6.32-573.60.4.el6.s390x.rpm |
RedHat | 6 | s390x | kernel | < 2.6.32-573.60.4.el6 | kernel-2.6.32-573.60.4.el6.s390x.rpm |
RedHat | 6 | ppc64 | python-perf | < 2.6.32-573.60.4.el6 | python-perf-2.6.32-573.60.4.el6.ppc64.rpm |
7.8 High
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
7.2 High
CVSS2
Access Vector
LOCAL
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:L/AC:L/Au:N/C:C/I:C/A:C
0.002 Low
EPSS
Percentile
54.2%