1 Spectre and Meltdown Checks
2 ^^^^^^^^^^^^^^^^^^^^^^^^^^^
4 Following section displays the output of a running shell script to tell if
5 system is vulnerable against the several "speculative execution" CVEs that were
6 made public in 2018. Script is available on `Spectre & Meltdown Checker Github
7 <https://github.com/speed47/spectre-meltdown-checker>`_.
11 Spectre and Meltdown mitigation detection tool v0.45
13 Checking for vulnerabilities on current system
14 Kernel is Linux 5.15.0-46-generic #49-Ubuntu SMP Thu Aug 4 18:08:11 UTC 2022 aarch64
15 CPU is ARM v8 model 0xd08
18 * CPU vulnerability to the speculative execution attack variants
19 * Affected by CVE-2017-5753 (Spectre Variant 1, bounds check bypass): YES
20 * Affected by CVE-2017-5715 (Spectre Variant 2, branch target injection): YES
21 * Affected by CVE-2017-5754 (Variant 3, Meltdown, rogue data cache load): NO
22 * Affected by CVE-2018-3640 (Variant 3a, rogue system register read): YES
23 * Affected by CVE-2018-3639 (Variant 4, speculative store bypass): YES
24 * Affected by CVE-2018-3615 (Foreshadow (SGX), L1 terminal fault): NO
25 * Affected by CVE-2018-3620 (Foreshadow-NG (OS), L1 terminal fault): NO
26 * Affected by CVE-2018-3646 (Foreshadow-NG (VMM), L1 terminal fault): NO
27 * Affected by CVE-2018-12126 (Fallout, microarchitectural store buffer data sampling (MSBDS)): NO
28 * Affected by CVE-2018-12130 (ZombieLoad, microarchitectural fill buffer data sampling (MFBDS)): NO
29 * Affected by CVE-2018-12127 (RIDL, microarchitectural load port data sampling (MLPDS)): NO
30 * Affected by CVE-2019-11091 (RIDL, microarchitectural data sampling uncacheable memory (MDSUM)): NO
31 * Affected by CVE-2019-11135 (ZombieLoad V2, TSX Asynchronous Abort (TAA)): NO
32 * Affected by CVE-2018-12207 (No eXcuses, iTLB Multihit, machine check exception on page size changes (MCEPSC)): NO
33 * Affected by CVE-2020-0543 (Special Register Buffer Data Sampling (SRBDS)): NO
35 CVE-2017-5753 aka Spectre Variant 1, bounds check bypass
36 * Mitigated according to the /sys interface: YES (Mitigation: __user pointer sanitization)
37 > STATUS: UNKNOWN (/sys vulnerability interface use forced, but its not available!)
39 CVE-2017-5715 aka Spectre Variant 2, branch target injection
40 * Mitigated according to the /sys interface: NO (Vulnerable)
41 > STATUS: VULNERABLE (Branch predictor hardening is needed to mitigate the vulnerability)
43 CVE-2017-5754 aka Variant 3, Meltdown, rogue data cache load
44 * Mitigated according to the /sys interface: YES (Not affected)
45 * Running as a Xen PV DomU: NO
46 > STATUS: NOT VULNERABLE (your CPU vendor reported your CPU model as not affected)
48 CVE-2018-3640 aka Variant 3a, rogue system register read
49 * CPU microcode mitigates the vulnerability: NO
50 > STATUS: VULNERABLE (an up-to-date CPU microcode is needed to mitigate this vulnerability)
52 CVE-2018-3639 aka Variant 4, speculative store bypass
53 * Mitigated according to the /sys interface: NO (Vulnerable)
54 > STATUS: VULNERABLE (Neither your CPU nor your kernel support SSBD)
56 CVE-2018-3615 aka Foreshadow (SGX), L1 terminal fault
57 * CPU microcode mitigates the vulnerability: N/A
58 > STATUS: NOT VULNERABLE (your CPU vendor reported your CPU model as not affected)
60 CVE-2018-3620 aka Foreshadow-NG (OS), L1 terminal fault
61 * Mitigated according to the /sys interface: YES (Not affected)
62 > STATUS: NOT VULNERABLE (your CPU vendor reported your CPU model as not affected)
64 CVE-2018-3646 aka Foreshadow-NG (VMM), L1 terminal fault
65 * Information from the /sys interface: Not affected
66 > STATUS: NOT VULNERABLE (your CPU vendor reported your CPU model as not affected)
68 CVE-2018-12126 aka Fallout, microarchitectural store buffer data sampling (MSBDS)
69 * Mitigated according to the /sys interface: YES (Not affected)
70 > STATUS: NOT VULNERABLE (your CPU vendor reported your CPU model as not affected)
72 CVE-2018-12130 aka ZombieLoad, microarchitectural fill buffer data sampling (MFBDS)
73 * Mitigated according to the /sys interface: YES (Not affected)
74 > STATUS: NOT VULNERABLE (your CPU vendor reported your CPU model as not affected)
76 CVE-2018-12127 aka RIDL, microarchitectural load port data sampling (MLPDS)
77 * Mitigated according to the /sys interface: YES (Not affected)
78 > STATUS: NOT VULNERABLE (your CPU vendor reported your CPU model as not affected)
80 CVE-2019-11091 aka RIDL, microarchitectural data sampling uncacheable memory (MDSUM)
81 * Mitigated according to the /sys interface: YES (Not affected)
82 > STATUS: NOT VULNERABLE (your CPU vendor reported your CPU model as not affected)
84 CVE-2019-11135 aka ZombieLoad V2, TSX Asynchronous Abort (TAA)
85 * Mitigated according to the /sys interface: YES (Not affected)
86 > STATUS: NOT VULNERABLE (your CPU vendor reported your CPU model as not affected)
88 CVE-2018-12207 aka No eXcuses, iTLB Multihit, machine check exception on page size changes (MCEPSC)
89 * Mitigated according to the /sys interface: YES (Not affected)
90 > STATUS: NOT VULNERABLE (your CPU vendor reported your CPU model as not affected)
92 CVE-2020-0543 aka Special Register Buffer Data Sampling (SRBDS)
93 * Mitigated according to the /sys interface: YES (Not affected)
94 > STATUS: NOT VULNERABLE (your CPU vendor reported your CPU model as not affected)
96 > SUMMARY: CVE-2017-5753:?? CVE-2017-5715:KO CVE-2017-5754:OK CVE-2018-3640:KO CVE-2018-3639:KO CVE-2018-3615:OK CVE-2018-3620:OK CVE-2018-3646:OK CVE-2018-12126:OK CVE-2018-12130:OK CVE-2018-12127:OK CVE-2019-11091:OK CVE-2019-11135:OK CVE-2018-12207:OK CVE-2020-0543:OK