Security Fix(es) :

  - An industry-wide issue was found in the way many modern     microprocessor designs have implemented speculative     execution of Load &amp; 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.

Scientific Linux Security Update : kernel on SL6.x i386/x86_64 (20180710) (Spectre)

high Nessus Plugin ID 111002

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