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Synopsis:          Important: kernel security and bug fix update
Advisory ID:       SLSA-2018:2164-1
Issue Date:        2018-07-10
CVE Numbers:       CVE-2018-3639
                   CVE-2018-3665
                   CVE-2018-10675
                   CVE-2018-10872
--

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)

Bug Fix(es):

* Previously, microcode updates on 32 and 64-bit AMD and Intel
architectures were not synchronized. As a consequence, it was not possible
to apply the microcode updates. This fix adds the synchronization to the
microcode updates so that processors of the stated architectures receive
updates at the same time. As a result, microcode updates are now
synchronized.
--

SL6
  x86_64
    kernel-2.6.32-754.2.1.el6.x86_64.rpm
    kernel-debug-2.6.32-754.2.1.el6.x86_64.rpm
    kernel-debug-debuginfo-2.6.32-754.2.1.el6.i686.rpm
    kernel-debug-debuginfo-2.6.32-754.2.1.el6.x86_64.rpm
    kernel-debug-devel-2.6.32-754.2.1.el6.i686.rpm
    kernel-debug-devel-2.6.32-754.2.1.el6.x86_64.rpm
    kernel-debuginfo-2.6.32-754.2.1.el6.i686.rpm
    kernel-debuginfo-2.6.32-754.2.1.el6.x86_64.rpm
    kernel-debuginfo-common-i686-2.6.32-754.2.1.el6.i686.rpm
    kernel-debuginfo-common-x86_64-2.6.32-754.2.1.el6.x86_64.rpm
    kernel-devel-2.6.32-754.2.1.el6.x86_64.rpm
    kernel-headers-2.6.32-754.2.1.el6.x86_64.rpm
    perf-2.6.32-754.2.1.el6.x86_64.rpm
    perf-debuginfo-2.6.32-754.2.1.el6.i686.rpm
    perf-debuginfo-2.6.32-754.2.1.el6.x86_64.rpm
    python-perf-debuginfo-2.6.32-754.2.1.el6.i686.rpm
    python-perf-debuginfo-2.6.32-754.2.1.el6.x86_64.rpm
    python-perf-2.6.32-754.2.1.el6.x86_64.rpm
  i386
    kernel-2.6.32-754.2.1.el6.i686.rpm
    kernel-debug-2.6.32-754.2.1.el6.i686.rpm
    kernel-debug-debuginfo-2.6.32-754.2.1.el6.i686.rpm
    kernel-debug-devel-2.6.32-754.2.1.el6.i686.rpm
    kernel-debuginfo-2.6.32-754.2.1.el6.i686.rpm
    kernel-debuginfo-common-i686-2.6.32-754.2.1.el6.i686.rpm
    kernel-devel-2.6.32-754.2.1.el6.i686.rpm
    kernel-headers-2.6.32-754.2.1.el6.i686.rpm
    perf-2.6.32-754.2.1.el6.i686.rpm
    perf-debuginfo-2.6.32-754.2.1.el6.i686.rpm
    python-perf-debuginfo-2.6.32-754.2.1.el6.i686.rpm
    python-perf-2.6.32-754.2.1.el6.i686.rpm
  noarch
    kernel-abi-whitelists-2.6.32-754.2.1.el6.noarch.rpm
    kernel-doc-2.6.32-754.2.1.el6.noarch.rpm
    kernel-firmware-2.6.32-754.2.1.el6.noarch.rpm

- Scientific Linux Development Team