System software utilizing Lazy FP state restore technique on systems using Intel Core-based microprocessors may potentially allow a local process to infer data from another process through a speculative execution side channel.

System software utilizing Lazy FP state restore technique on systems using Intel Core-based microprocessors may potentially allow a local process to infer data from another process through a speculative execution side channel.

xen-4.15.1_01-1.2 on GA media

Kernel: FPU state information leakage via lazy FPU restore

Security update for the Linux Kernel

Affected: Ubuntu:14.04:LTS: linux, Ubuntu:14.04:LTS: linux-aws, Ubuntu:14.04:LTS: linux-lts-xenial, Ubuntu:16.04:LTS: linux, Ubuntu:16.04:LTS: linux-aws, Ubuntu:16.04:LTS: linux-kvm, Ubuntu:Pro:FIPS-updates:16.04:LTS: linux-fips, Ubuntu:20.04:LTS: linux-azure-fde, Ubuntu:Pro:20.04:LTS: linux-azure-fde-5.15, Ubuntu:20.04:LTS: linux-gke and 10 more

System software utilizing Lazy FP state restore technique on systems using Intel Core-based microprocessors may potentially …

System software utilizing Lazy FP state restore technique on systems using Intel Core-based microprocessors may potentially allow a local process to infer data from another process through a speculative execution side channel. Intel Core Systems with microprocessors contain information disclosure vulnerabilities.Information may be obtained. An attacker could exploit this vulnerability to obtain values about other processes stored in a number register. Attackers can exploit this issue to obta…