Systems with microprocessors utilizing speculative execution and address translations may allow unauthorized disclosure of information residing in the L1 data cache to an attacker with local user access with guest OS privilege via a terminal page fault and a side-channel analysis.
7.1 High CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N
Fixed with kernel-2.6.32-754.3.5.el6.x86_64.rpm and microcode_ctl-1.17-33.3.el6_10.x86_64.rpm in Unitrends security update (>=08/16/2018)
LINK TO ADVISORIES
- https://access.redhat.com/security/cve/cve-2018-3646 https://nvd.nist.gov/vuln/detail/CVE-2018-3646 https://access.redhat.com/errata/RHEA-2018:2300 https://access.redhat.com/errata/RHSA-2018:2390 https://access.redhat.com/errata/RHSA-2018:2391 https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00161.html