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Stéphane Lesimple 2018-01-07 20:12:24 +01:00
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@ -28,24 +28,24 @@ Example of the output of the script:
``` ```
$ sudo ./spectre-meltdown-checker.sh $ sudo ./spectre-meltdown-checker.sh
Spectre and Meltdown mitigation detection tool v0.02 Spectre and Meltdown mitigation detection tool v0.07
CVE-2017-5753 [bounds check bypass] aka 'Spectre Variant 1' CVE-2017-5753 [bounds check bypass] aka 'Spectre Variant 1'
* Kernel compiled with LFENCE opcode inserted at the proper places: NO (only 38 opcodes found, should be >= 60) * Kernel compiled with LFENCE opcode inserted at the proper places: NO (only 38 opcodes found, should be >= 60)
> STATUS: VULNERABLE > STATUS: VULNERABLE
CVE-2017-5715 [branch target injection] aka 'Spectre Variant 2' CVE-2017-5715 [branch target injection] aka 'Spectre Variant 2'
* Mitigation 1 * Mitigation 1
* Hardware (CPU microcode) support for mitigation: NO * Hardware (CPU microcode) support for mitigation: NO
* Kernel support for IBRS: NO * Kernel support for IBRS: NO
* IBRS enabled for Kernel space: NO * IBRS enabled for Kernel space: NO
* IBRS enabled for User space: NO * IBRS enabled for User space: NO
* Mitigation 2 * Mitigation 2
* Kernel recompiled with retpolines: UNKNOWN (check not yet implemented) * Kernel compiled with retpolines: NO
> STATUS: VULNERABLE (IBRS hardware + kernel support OR retpolines-compiled kernel are needed to mitigate the vulnerability) > STATUS: VULNERABLE (IBRS hardware + kernel support OR kernel with retpolines are needed to mitigate the vulnerability)
CVE-2017-5754 [rogue data cache load] aka 'Meltdown' aka 'Variant 3' CVE-2017-5754 [rogue data cache load] aka 'Meltdown' aka 'Variant 3'
* Kernel supports Page Table Isolation (PTI): YES * Kernel supports Page Table Isolation (PTI): YES
* PTI enabled and active: YES * PTI enabled and active: YES
> STATUS: NOT VULNERABLE (PTI mitigates the vulnerability) > STATUS: NOT VULNERABLE (PTI mitigates the vulnerability)
``` ```