Spectre and Meltdown mitigation detection tool v0.40

Checking for vulnerabilities on current system
Kernel is [35mLinux 2.6.32-754.el6.x86_64 #1 SMP Thu May 24 18:18:25 EDT 2018 x86_64[0m
CPU is [35mIntel(R) Xeon(R) Platinum 8280L CPU @ 2.70GHz[0m

[1;34mHardware check[0m
* Hardware support (CPU microcode) for mitigation techniques
  * Indirect Branch Restricted Speculation (IBRS)
    * SPEC_CTRL MSR is available: [42m[30m YES [0m
    * CPU indicates IBRS capability: [42m[30m YES [0m (SPEC_CTRL feature bit)
  * Indirect Branch Prediction Barrier (IBPB)
    * PRED_CMD MSR is available: [42m[30m YES [0m
    * CPU indicates IBPB capability: [42m[30m YES [0m (SPEC_CTRL feature bit)
  * Single Thread Indirect Branch Predictors (STIBP)
    * SPEC_CTRL MSR is available: [42m[30m YES [0m
    * CPU indicates STIBP capability: [43m[30m NO [0m
  * Speculative Store Bypass Disable (SSBD)
    * CPU indicates SSBD capability: [42m[30m YES [0m (Intel SSBD)
  * L1 data cache invalidation
    * FLUSH_CMD MSR is available: [43m[30m NO [0m
    * CPU indicates L1D flush capability: [43m[30m NO [0m
  * Enhanced IBRS (IBRS_ALL)
    * CPU indicates ARCH_CAPABILITIES MSR availability: [43m[30m NO [0m
    * ARCH_CAPABILITIES MSR advertises IBRS_ALL capability: [43m[30m NO [0m
  * CPU explicitly indicates not being vulnerable to Meltdown (RDCL_NO): [43m[30m NO [0m
  * CPU explicitly indicates not being vulnerable to Variant 4 (SSB_NO): [43m[30m NO [0m
  * CPU/Hypervisor indicates L1D flushing is not necessary on this system: [43m[30m NO [0m
  * Hypervisor indicates host CPU might be vulnerable to RSB underflow (RSBA): [44m[30m NO [0m
  * CPU supports Software Guard Extensions (SGX): [42m[30m NO [0m
  * CPU microcode is known to cause stability problems: [44m[30m NO [0m (model 0x55 family 0x6 stepping 0x6 ucode 0x1 cpuid 0x50656)
  * CPU microcode is the latest known available version: [41m[30m NO [0m (latest version is 0x4000013 dated 2018/12/03 according to builtin MCExtractor DB v96 - 2019/01/15)
* CPU vulnerability to the speculative execution attack variants
  * Vulnerable to CVE-2017-5753 (Spectre Variant 1, bounds check bypass): [43m[30m YES [0m
  * Vulnerable to CVE-2017-5715 (Spectre Variant 2, branch target injection): [43m[30m YES [0m
  * Vulnerable to CVE-2017-5754 (Variant 3, Meltdown, rogue data cache load): [43m[30m YES [0m
  * Vulnerable to CVE-2018-3640 (Variant 3a, rogue system register read): [43m[30m YES [0m
  * Vulnerable to CVE-2018-3639 (Variant 4, speculative store bypass): [43m[30m YES [0m
  * Vulnerable to CVE-2018-3615 (Foreshadow (SGX), L1 terminal fault): [42m[30m NO [0m
  * Vulnerable to CVE-2018-3620 (Foreshadow-NG (OS), L1 terminal fault): [43m[30m YES [0m
  * Vulnerable to CVE-2018-3646 (Foreshadow-NG (VMM), L1 terminal fault): [43m[30m YES [0m

[1;34mCVE-2017-5753 aka 'Spectre Variant 1, bounds check bypass'[0m
* Mitigated according to the /sys interface: [42m[30m YES [0m (Mitigation: Load fences)
* Kernel has array_index_mask_nospec: [43m[30m NO [0m
* Kernel has the Red Hat/Ubuntu patch: [42m[30m YES [0m
* Kernel has mask_nospec64 (arm64): [43m[30m NO [0m
> [46m[30mSTATUS:[0m [42m[30m NOT VULNERABLE [0m (Mitigation: Load fences)

[1;34mCVE-2017-5715 aka 'Spectre Variant 2, branch target injection'[0m
* Mitigated according to the /sys interface: [42m[30m YES [0m (Mitigation: IBRS (kernel))
* Mitigation 1
  * Kernel is compiled with IBRS support: [42m[30m YES [0m
    * IBRS enabled and active: [42m[30m YES [0m (for kernel space)
  * Kernel is compiled with IBPB support: [42m[30m YES [0m
    * IBPB enabled and active: [42m[30m YES [0m
* Mitigation 2
  * Kernel has branch predictor hardening (arm): [43m[30m NO [0m
  * Kernel compiled with retpoline option: [42m[30m YES [0m
    * Retpoline is enabled: [43m[30m NO [0m
  * Kernel supports RSB filling: [43m[30m NO [0m
> [46m[30mSTATUS:[0m [42m[30m NOT VULNERABLE [0m (IBRS + IBPB are mitigating the vulnerability)

[1;34mCVE-2017-5754 aka 'Variant 3, Meltdown, rogue data cache load'[0m
* Mitigated according to the /sys interface: [42m[30m YES [0m (Mitigation: PTI)
* Kernel supports Page Table Isolation (PTI): [42m[30m YES [0m
  * PTI enabled and active: [42m[30m YES [0m
  * Reduced performance impact of PTI: [42m[30m YES [0m (CPU supports INVPCID, performance impact of PTI will be greatly reduced)
* Running as a Xen PV DomU: [44m[30m NO [0m
> [46m[30mSTATUS:[0m [42m[30m NOT VULNERABLE [0m (Mitigation: PTI)

[1;34mCVE-2018-3640 aka 'Variant 3a, rogue system register read'[0m
* CPU microcode mitigates the vulnerability: [42m[30m YES [0m
> [46m[30mSTATUS:[0m [42m[30m NOT VULNERABLE [0m (your CPU microcode mitigates the vulnerability)

[1;34mCVE-2018-3639 aka 'Variant 4, speculative store bypass'[0m
* Mitigated according to the /sys interface: [43m[30m NO [0m (Vulnerable)
* Kernel supports speculation store bypass: [42m[30m YES [0m (spec_store_bypass)
> [46m[30mSTATUS:[0m [42m[30m NOT VULNERABLE [0m (your system provides the necessary tools for software mitigation)

[1;34mCVE-2018-3615 aka 'Foreshadow (SGX), L1 terminal fault'[0m
* CPU microcode mitigates the vulnerability: [44m[30m N/A [0m
> [46m[30mSTATUS:[0m [42m[30m NOT VULNERABLE [0m (your CPU vendor reported your CPU model as not vulnerable)

[1;34mCVE-2018-3620 aka 'Foreshadow-NG (OS), L1 terminal fault'[0m
* Kernel supports PTE inversion: [43m[30m NO [0m
* PTE inversion enabled and active: [43m[30m UNKNOWN [0m (sysfs interface not available)
> [46m[30mSTATUS:[0m [41m[30m VULNERABLE [0m (Your kernel doesn't support PTE inversion, update it)

[1;34mCVE-2018-3646 aka 'Foreshadow-NG (VMM), L1 terminal fault'[0m
* This system is a host running a hypervisor: [44m[30m YES [0m
* Mitigation 1 (KVM)
  * EPT is disabled: [44m[30m N/A [0m (the kvm_intel module is not loaded)
* Mitigation 2
  * L1D flush is supported by kernel: [43m[30m NO [0m
  * L1D flush enabled: [43m[30m UNKNOWN [0m (can't find or read /sys/devices/system/cpu/vulnerabilities/l1tf)
  * Hardware-backed L1D flush supported: [44m[30m NO [0m (flush will be done in software, this is slower)
  * Hyper-Threading (SMT) is enabled: [42m[30m NO [0m
> [46m[30mSTATUS:[0m [41m[30m VULNERABLE [0m (disable EPT or enabled L1D flushing to mitigate the vulnerability)

> [46m[30mSUMMARY:[0m [42m[30mCVE-2017-5753:OK[0m [42m[30mCVE-2017-5715:OK[0m [42m[30mCVE-2017-5754:OK[0m [42m[30mCVE-2018-3640:OK[0m [42m[30mCVE-2018-3639:OK[0m [42m[30mCVE-2018-3615:OK[0m [41m[30mCVE-2018-3620:KO[0m [41m[30mCVE-2018-3646:KO[0m

Need more detailed information about mitigation options? Use --explain
A false sense of security is worse than no security at all, see --disclaimer
