[root@nygus spectre-meltdown-checker]# ./spectre-meltdown-checker.sh
Spectre and Meltdown mitigation detection tool v0.28

Checking for vulnerabilities against running kernel Linux 3.10.0-693.11.1.el7.x86_64 #1 SMP Mon Dec 4 23:52:40 UTC 2017 x86_64
CPU is Intel Core Processor (Haswell, no TSX)

CVE-2017-5753 [bounds check bypass] aka 'Spectre Variant 1'
* Checking count of LFENCE opcodes in kernel:  NO
> STATUS:  VULNERABLE  (only 21 opcodes found, should be >= 70, heuristic to be improved when official patches become available)

CVE-2017-5715 [branch target injection] aka 'Spectre Variant 2'
* Mitigation 1
*   Hardware (CPU microcode) support for mitigation:  NO
*   Kernel support for IBRS:  NO
*   IBRS enabled for Kernel space:  NO
*   IBRS enabled for User space:  NO
* Mitigation 2
*   Kernel compiled with retpoline option:  NO
*   Kernel compiled with a retpoline-aware compiler:  NO
> STATUS:  VULNERABLE  (IBRS hardware + kernel support OR kernel with retpoline are needed to mitigate the vulnerability)

CVE-2017-5754 [rogue data cache load] aka 'Meltdown' aka 'Variant 3'
* Kernel supports Page Table Isolation (PTI):  NO
* PTI enabled and active:  NO
> STATUS:  VULNERABLE  (PTI is needed to mitigate the vulnerability)

A false sense of security is worse than no security at all, see --disclaimer
[root@nygus spectre-meltdown-checker]# rpm -qa|grep kernel-3
kernel-3.10.0-693.5.2.el7.x86_64
kernel-3.10.0-693.11.6.el7.x86_64
kernel-3.10.0-693.11.1.el7.x86_64
[root@nygus spectre-meltdown-checker]#