This update addresses the following issue:
* Systems with microprocessors utilizing speculative execution and indirect
branch prediction may allow unauthorized disclosure of information to an
attacker with local user access via a side-channel analysis (CVE-2017-5715)
This update adds the infrastructure to the C compiler for using "retpoline".
The compiler can be used to mitigate the "Spectre 2" vulnerability by
re-compiling susceptible binaries until fixed CPUs or fixed CPU micro code
updates are available from the CPU vendors. |