CVSS2
Attack Vector
LOCAL
Attack 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
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
EPSS
Percentile
65.2%
CentOS Errata and Security Advisory CESA-2018:2164
The kernel packages contain the Linux kernel, the core of any Linux operating system.
Security Fix(es):
An industry-wide issue was found in the way many modern microprocessor designs have implemented speculative execution of Load & Store instructions (a commonly used performance optimization). It relies on the presence of a precisely-defined instruction sequence in the privileged code as well as the fact that memory read from address to which a recent memory write has occurred may see an older value and subsequently cause an update into the microprocessor’s data cache even for speculatively executed instructions that never actually commit (retire). As a result, an unprivileged attacker could use this flaw to read privileged memory by conducting targeted cache side-channel attacks. (CVE-2018-3639, x86 AMD)
kernel: Use-after-free vulnerability in mm/mempolicy.c:do_get_mempolicy function allows local denial of service or other unspecified impact (CVE-2018-10675)
Kernel: FPU state information leakage via lazy FPU restore (CVE-2018-3665)
kernel: error in exception handling leads to DoS (CVE-2018-8897 regression) (CVE-2018-10872)
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 Ken Johnson (Microsoft Security Response Center) and Jann Horn (Google Project Zero) for reporting CVE-2018-3639 and Julian Stecklina (Amazon.de), Thomas Prescher (cyberus-technology.de), and Zdenek Sojka (sysgo.com) for reporting CVE-2018-3665.
Bug Fix(es):
Merged security bulletin from advisories:
https://lists.centos.org/pipermail/centos-announce/2018-July/085130.html
Affected packages:
kernel
kernel-abi-whitelists
kernel-debug
kernel-debug-devel
kernel-devel
kernel-doc
kernel-firmware
kernel-headers
perf
python-perf
Upstream details at:
https://access.redhat.com/errata/RHSA-2018:2164
OS | Version | Architecture | Package | Version | Filename |
---|---|---|---|---|---|
CentOS | 6 | i686 | kernel | < 2.6.32-754.2.1.el6 | kernel-2.6.32-754.2.1.el6.i686.rpm |
CentOS | 6 | noarch | kernel-abi-whitelists | < 2.6.32-754.2.1.el6 | kernel-abi-whitelists-2.6.32-754.2.1.el6.noarch.rpm |
CentOS | 6 | i686 | kernel-debug | < 2.6.32-754.2.1.el6 | kernel-debug-2.6.32-754.2.1.el6.i686.rpm |
CentOS | 6 | i686 | kernel-debug-devel | < 2.6.32-754.2.1.el6 | kernel-debug-devel-2.6.32-754.2.1.el6.i686.rpm |
CentOS | 6 | i686 | kernel-devel | < 2.6.32-754.2.1.el6 | kernel-devel-2.6.32-754.2.1.el6.i686.rpm |
CentOS | 6 | noarch | kernel-doc | < 2.6.32-754.2.1.el6 | kernel-doc-2.6.32-754.2.1.el6.noarch.rpm |
CentOS | 6 | noarch | kernel-firmware | < 2.6.32-754.2.1.el6 | kernel-firmware-2.6.32-754.2.1.el6.noarch.rpm |
CentOS | 6 | i686 | kernel-headers | < 2.6.32-754.2.1.el6 | kernel-headers-2.6.32-754.2.1.el6.i686.rpm |
CentOS | 6 | i686 | perf | < 2.6.32-754.2.1.el6 | perf-2.6.32-754.2.1.el6.i686.rpm |
CentOS | 6 | i686 | python-perf | < 2.6.32-754.2.1.el6 | python-perf-2.6.32-754.2.1.el6.i686.rpm |
CVSS2
Attack Vector
LOCAL
Attack 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
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
EPSS
Percentile
65.2%