Synopsis
The remote device is missing a vendor-supplied security patch
Description
The remote host is running a version of RancherOS prior to v1.4.1, hence is exposed to multiple side-channel vulnerabilities:
- 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 via a terminal page fault and a side-channel analysis. (CVE-2018-3620)
- Systems with microprocessors utilizing speculative execution and speculative execution of memory reads before the addresses of all prior memory writes are known may allow unauthorized disclosure of information to an attacker with local user access via a side-channel analysis, aka Speculative Store Bypass (SSB), Variant 4.
(CVE-2018-3639)
Solution
Upgrade to RancherOS v1.4.1 or later