X-Git-Url: https://gerrit.fd.io/r/gitweb?a=blobdiff_plain;f=docs%2Freport%2Fintroduction%2Ftest_environment_sut_meltspec_clx.rst;h=6261c5653c69a4c59307c531da75c204faf1d70a;hb=38c3ff73f5cbc0124782c7c7d235ba36f57872ae;hp=9056be839b146e1a98c85778466b88f1e11a26e0;hpb=b82474874d4329d3e82ea8a22754b7b04cf969ee;p=csit.git diff --git a/docs/report/introduction/test_environment_sut_meltspec_clx.rst b/docs/report/introduction/test_environment_sut_meltspec_clx.rst index 9056be839b..6261c5653c 100644 --- a/docs/report/introduction/test_environment_sut_meltspec_clx.rst +++ b/docs/report/introduction/test_environment_sut_meltspec_clx.rst @@ -1,5 +1,5 @@ Spectre and Meltdown Checks -~~~~~~~~~~~~~~~~~~~~~~~~~~~ +^^^^^^^^^^^^^^^^^^^^^^^^^^^ Following section displays the output of a running shell script to tell if system is vulnerable against the several speculative execution CVEs that were @@ -8,10 +8,130 @@ made public in 2018. Script is available on `Spectre & Meltdown Checker Github :: - Spectre and Meltdown mitigation detection tool v0.42 + Spectre and Meltdown mitigation detection tool v0.44+ + + Hardware check + * Hardware support (CPU microcode) for mitigation techniques + * Indirect Branch Restricted Speculation (IBRS) + * SPEC_CTRL MSR is available: YES + * CPU indicates IBRS capability: YES (SPEC_CTRL feature bit) + * Indirect Branch Prediction Barrier (IBPB) + * PRED_CMD MSR is available: YES + * CPU indicates IBPB capability: YES (SPEC_CTRL feature bit) + * Single Thread Indirect Branch Predictors (STIBP) + * SPEC_CTRL MSR is available: YES + * CPU indicates STIBP capability: YES (Intel STIBP feature bit) + * Speculative Store Bypass Disable (SSBD) + * CPU indicates SSBD capability: YES (Intel SSBD) + * L1 data cache invalidation + * FLUSH_CMD MSR is available: YES + * CPU indicates L1D flush capability: YES (L1D flush feature bit) + * Microarchitectural Data Sampling + * VERW instruction is available: YES (MD_CLEAR feature bit) + * Enhanced IBRS (IBRS_ALL) + * CPU indicates ARCH_CAPABILITIES MSR availability: YES + * ARCH_CAPABILITIES MSR advertises IBRS_ALL capability: YES + * CPU explicitly indicates not being vulnerable to Meltdown/L1TF (RDCL_NO): YES + * CPU explicitly indicates not being vulnerable to Variant 4 (SSB_NO): NO + * CPU/Hypervisor indicates L1D flushing is not necessary on this system: YES + * Hypervisor indicates host CPU might be vulnerable to RSB underflow (RSBA): NO + * CPU explicitly indicates not being vulnerable to Microarchitectural Data Sampling (MDS_NO): YES + * CPU explicitly indicates not being vulnerable to TSX Asynchronous Abort (TAA_NO): NO + * CPU explicitly indicates not being vulnerable to iTLB Multihit (PSCHANGE_MSC_NO): NO + * CPU explicitly indicates having MSR for TSX control (TSX_CTRL_MSR): YES + * TSX_CTRL MSR indicates TSX RTM is disabled: YES + * TSX_CTRL MSR indicates TSX CPUID bit is cleared: YES + * CPU supports Transactional Synchronization Extensions (TSX): NO + * CPU supports Software Guard Extensions (SGX): NO + * CPU supports Special Register Buffer Data Sampling (SRBDS): NO + * CPU microcode is known to cause stability problems: NO (family 0x6 model 0x55 stepping 0x7 ucode 0x500002c cpuid 0x50657) + * CPU microcode is the latest known available version: NO (latest version is 0x5003102 dated 2021/03/08 according to builtin firmwares DB v191+i20210217) + * CPU vulnerability to the speculative execution attack variants + * Affected by CVE-2017-5753 (Spectre Variant 1, bounds check bypass): YES + * Affected by CVE-2017-5715 (Spectre Variant 2, branch target injection): YES + * Affected by CVE-2017-5754 (Variant 3, Meltdown, rogue data cache load): NO + * Affected by CVE-2018-3640 (Variant 3a, rogue system register read): YES + * Affected by CVE-2018-3639 (Variant 4, speculative store bypass): YES + * Affected by CVE-2018-3615 (Foreshadow (SGX), L1 terminal fault): NO + * Affected by CVE-2018-3620 (Foreshadow-NG (OS), L1 terminal fault): YES + * Affected by CVE-2018-3646 (Foreshadow-NG (VMM), L1 terminal fault): YES + * Affected by CVE-2018-12126 (Fallout, microarchitectural store buffer data sampling (MSBDS)): NO + * Affected by CVE-2018-12130 (ZombieLoad, microarchitectural fill buffer data sampling (MFBDS)): NO + * Affected by CVE-2018-12127 (RIDL, microarchitectural load port data sampling (MLPDS)): NO + * Affected by CVE-2019-11091 (RIDL, microarchitectural data sampling uncacheable memory (MDSUM)): NO + * Affected by CVE-2019-11135 (ZombieLoad V2, TSX Asynchronous Abort (TAA)): NO + * Affected by CVE-2018-12207 (No eXcuses, iTLB Multihit, machine check exception on page size changes (MCEPSC)): YES + * Affected by CVE-2020-0543 (Special Register Buffer Data Sampling (SRBDS)): NO + + CVE-2017-5753 aka Spectre Variant 1, bounds check bypass + * Mitigated according to the /sys interface: YES (Mitigation: usercopy/swapgs barriers and __user pointer sanitization) + > STATUS: UNKNOWN (/sys vulnerability interface use forced, but it s not available!) + + CVE-2017-5715 aka Spectre Variant 2, branch target injection + * Mitigated according to the /sys interface: YES (Mitigation: Enhanced IBRS, IBPB: conditional, RSB filling) + > STATUS: VULNERABLE (IBRS+IBPB or retpoline+IBPB+RSB filling, is needed to mitigate the vulnerability) + + CVE-2017-5754 aka Variant 3, Meltdown, rogue data cache load + * Mitigated according to the /sys interface: YES (Not affected) + * Running as a Xen PV DomU: NO + > STATUS: NOT VULNERABLE (your CPU vendor reported your CPU model as not vulnerable) + + CVE-2018-3640 aka Variant 3a, rogue system register read + * CPU microcode mitigates the vulnerability: YES + > STATUS: NOT VULNERABLE (your CPU microcode mitigates the vulnerability) + + CVE-2018-3639 aka Variant 4, speculative store bypass + * Mitigated according to the /sys interface: YES (Mitigation: Speculative Store Bypass disabled via prctl and seccomp) + > STATUS: NOT VULNERABLE (Mitigation: Speculative Store Bypass disabled via prctl and seccomp) + + CVE-2018-3615 aka Foreshadow (SGX), L1 terminal fault + * CPU microcode mitigates the vulnerability: N/A + > STATUS: NOT VULNERABLE (your CPU vendor reported your CPU model as not vulnerable) + + CVE-2018-3620 aka Foreshadow-NG (OS), L1 terminal fault + * Mitigated according to the /sys interface: YES (Not affected) + > STATUS: NOT VULNERABLE (Not affected) + + CVE-2018-3646 aka Foreshadow-NG (VMM), L1 terminal fault + * Information from the /sys interface: Not affected + > STATUS: NOT VULNERABLE (your kernel reported your CPU model as not vulnerable) + + CVE-2018-12126 aka Fallout, microarchitectural store buffer data sampling (MSBDS) + * Mitigated according to the /sys interface: YES (Not affected) + > STATUS: NOT VULNERABLE (your CPU vendor reported your CPU model as not vulnerable) + + CVE-2018-12130 aka ZombieLoad, microarchitectural fill buffer data sampling (MFBDS) + * Mitigated according to the /sys interface: YES (Not affected) + > STATUS: NOT VULNERABLE (your CPU vendor reported your CPU model as not vulnerable) + + CVE-2018-12127 aka RIDL, microarchitectural load port data sampling (MLPDS) + * Mitigated according to the /sys interface: YES (Not affected) + > STATUS: NOT VULNERABLE (your CPU vendor reported your CPU model as not vulnerable) + + CVE-2019-11091 aka RIDL, microarchitectural data sampling uncacheable memory (MDSUM) + * Mitigated according to the /sys interface: YES (Not affected) + > STATUS: NOT VULNERABLE (your CPU vendor reported your CPU model as not vulnerable) + + CVE-2019-11135 aka ZombieLoad V2, TSX Asynchronous Abort (TAA) + * Mitigated according to the /sys interface: YES (Mitigation: TSX disabled) + > STATUS: NOT VULNERABLE (your CPU vendor reported your CPU model as not vulnerable) + + CVE-2018-12207 aka No eXcuses, iTLB Multihit, machine check exception on page size changes (MCEPSC) + * Mitigated according to the /sys interface: YES (KVM: Mitigation: Split huge pages) + > STATUS: NOT VULNERABLE (KVM: Mitigation: Split huge pages) + + CVE-2020-0543 aka Special Register Buffer Data Sampling (SRBDS) + * Mitigated according to the /sys interface: YES (Not affected) + > STATUS: NOT VULNERABLE (your CPU vendor reported your CPU model as not vulnerable) + + > SUMMARY: CVE-2017-5753:?? CVE-2017-5715:KO CVE-2017-5754:OK CVE-2018-3640:OK CVE-2018-3639:OK 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 + +:: + + Spectre and Meltdown mitigation detection tool v0.44+ Checking for vulnerabilities on current system - Kernel is Linux 4.15.0-60-generic #67-Ubuntu SMP Thu Aug 22 16:55:30 UTC 2019 x86_64 + Kernel is Linux 5.4.0-65-generic #73-Ubuntu SMP Mon Jan 18 17:25:17 UTC 2021 x86_64 CPU is Intel(R) Xeon(R) Gold 6252N CPU @ 2.30GHz Hardware check @@ -30,7 +150,7 @@ made public in 2018. Script is available on `Spectre & Meltdown Checker Github * L1 data cache invalidation * FLUSH_CMD MSR is available: YES * CPU indicates L1D flush capability: YES (L1D flush feature bit) - * Microarchitecture Data Sampling + * Microarchitectural Data Sampling * VERW instruction is available: YES (MD_CLEAR feature bit) * Enhanced IBRS (IBRS_ALL) * CPU indicates ARCH_CAPABILITIES MSR availability: YES @@ -40,115 +160,92 @@ made public in 2018. Script is available on `Spectre & Meltdown Checker Github * CPU/Hypervisor indicates L1D flushing is not necessary on this system: YES * Hypervisor indicates host CPU might be vulnerable to RSB underflow (RSBA): NO * CPU explicitly indicates not being vulnerable to Microarchitectural Data Sampling (MDS_NO): YES + * CPU explicitly indicates not being vulnerable to TSX Asynchronous Abort (TAA_NO): NO + * CPU explicitly indicates not being vulnerable to iTLB Multihit (PSCHANGE_MSC_NO): NO + * CPU explicitly indicates having MSR for TSX control (TSX_CTRL_MSR): YES + * TSX_CTRL MSR indicates TSX RTM is disabled: YES + * TSX_CTRL MSR indicates TSX CPUID bit is cleared: YES + * CPU supports Transactional Synchronization Extensions (TSX): NO * CPU supports Software Guard Extensions (SGX): NO - * CPU microcode is known to cause stability problems: NO (model 0x55 family 0x6 stepping 0x7 ucode 0x5000021 cpuid 0x50657) - * CPU microcode is the latest known available version: awk: fatal: cannot open file `bash' for reading (No file or directory) - UNKNOWN (latest microcode version for your CPU model is unknown) + * CPU supports Special Register Buffer Data Sampling (SRBDS): NO + * CPU microcode is known to cause stability problems: NO (family 0x6 model 0x55 stepping 0x7 ucode 0x500002c cpuid 0x50657) + * CPU microcode is the latest known available version: NO (latest version is 0x5003102 dated 2021/03/08 according to builtin firmwares DB v191+i20210217) * CPU vulnerability to the speculative execution attack variants - * Vulnerable to CVE-2017-5753 (Spectre Variant 1, bounds check bypass): YES - * Vulnerable to CVE-2017-5715 (Spectre Variant 2, branch target injection): YES - * Vulnerable to CVE-2017-5754 (Variant 3, Meltdown, rogue data cache load): NO - * Vulnerable to CVE-2018-3640 (Variant 3a, rogue system register read): YES - * Vulnerable to CVE-2018-3639 (Variant 4, speculative store bypass): YES - * Vulnerable to CVE-2018-3615 (Foreshadow (SGX), L1 terminal fault): NO - * Vulnerable to CVE-2018-3620 (Foreshadow-NG (OS), L1 terminal fault): NO - * Vulnerable to CVE-2018-3646 (Foreshadow-NG (VMM), L1 terminal fault): NO - * Vulnerable to CVE-2018-12126 (Fallout, microarchitectural store buffer data sampling (MSBDS)): NO - * Vulnerable to CVE-2018-12130 (ZombieLoad, microarchitectural fill buffer data sampling (MFBDS)): NO - * Vulnerable to CVE-2018-12127 (RIDL, microarchitectural load port data sampling (MLPDS)): NO - * Vulnerable to CVE-2019-11091 (RIDL, microarchitectural data sampling uncacheable memory (MDSUM)): NO - - CVE-2017-5753 aka 'Spectre Variant 1, bounds check bypass' - * Mitigated according to the /sys interface: YES (Mitigation: usercopy/swapgs barriers and __user pointer saniation) - * Kernel has array_index_mask_nospec: YES (1 occurrence(s) found of x86 64 bits array_index_mask_nospec()) - * Kernel has the Red Hat/Ubuntu patch: NO - * Kernel has array_index_mask_nospec: YES (1 occurrence(s) found of x86 64 bits array_index_mask_nospec()) - * Kernel has the Red Hat/Ubuntu patch: NO - * Kernel has mask_nospec64 (arm64): NO - > STATUS: NOT VULNERABLE (Mitigation: usercopy/swapgs barriers and __user pointer sanitization) - - CVE-2017-5715 aka 'Spectre Variant 2, branch target injection' + * Affected by CVE-2017-5753 (Spectre Variant 1, bounds check bypass): YES + * Affected by CVE-2017-5715 (Spectre Variant 2, branch target injection): YES + * Affected by CVE-2017-5754 (Variant 3, Meltdown, rogue data cache load): NO + * Affected by CVE-2018-3640 (Variant 3a, rogue system register read): YES + * Affected by CVE-2018-3639 (Variant 4, speculative store bypass): YES + * Affected by CVE-2018-3615 (Foreshadow (SGX), L1 terminal fault): NO + * Affected by CVE-2018-3620 (Foreshadow-NG (OS), L1 terminal fault): YES + * Affected by CVE-2018-3646 (Foreshadow-NG (VMM), L1 terminal fault): YES + * Affected by CVE-2018-12126 (Fallout, microarchitectural store buffer data sampling (MSBDS)): NO + * Affected by CVE-2018-12130 (ZombieLoad, microarchitectural fill buffer data sampling (MFBDS)): NO + * Affected by CVE-2018-12127 (RIDL, microarchitectural load port data sampling (MLPDS)): NO + * Affected by CVE-2019-11091 (RIDL, microarchitectural data sampling uncacheable memory (MDSUM)): NO + * Affected by CVE-2019-11135 (ZombieLoad V2, TSX Asynchronous Abort (TAA)): NO + * Affected by CVE-2018-12207 (No eXcuses, iTLB Multihit, machine check exception on page size changes (MCEPSC)): YES + * Affected by CVE-2020-0543 (Special Register Buffer Data Sampling (SRBDS)): NO + + CVE-2017-5753 aka Spectre Variant 1, bounds check bypass + * Mitigated according to the /sys interface: YES (Mitigation: usercopy/swapgs barriers and __user pointer sanitization) + > STATUS: UNKNOWN (/sys vulnerability interface use forced, but its not available!) + + CVE-2017-5715 aka Spectre Variant 2, branch target injection * Mitigated according to the /sys interface: YES (Mitigation: Enhanced IBRS, IBPB: conditional, RSB filling) - * Mitigation 1 - * Kernel is compiled with IBRS support: YES - * IBRS enabled and active: YES (Enhanced flavor, performance impact will be greatly reduced) - * Kernel is compiled with IBPB support: YES - * IBPB enabled and active: YES - * Mitigation 2 - * Kernel has branch predictor hardening (arm): NO - * Kernel compiled with retpoline option: YES - * Kernel supports RSB filling: YES - > STATUS: NOT VULNERABLE (Enhanced IBRS + IBPB are mitigating the vulnerability) - - CVE-2017-5754 aka 'Variant 3, Meltdown, rogue data cache load' + > STATUS: VULNERABLE (IBRS+IBPB or retpoline+IBPB+RSB filling, is needed to mitigate the vulnerability) + + CVE-2017-5754 aka Variant 3, Meltdown, rogue data cache load * Mitigated according to the /sys interface: YES (Not affected) - * Kernel supports Page Table Isolation (PTI): YES - * PTI enabled and active: NO - * Reduced performance impact of PTI: YES (CPU supports INVPCID, performance impact of PTI will be greatly reduced) * Running as a Xen PV DomU: NO > STATUS: NOT VULNERABLE (your CPU vendor reported your CPU model as not vulnerable) - CVE-2018-3640 aka 'Variant 3a, rogue system register read' + CVE-2018-3640 aka Variant 3a, rogue system register read * CPU microcode mitigates the vulnerability: YES > STATUS: NOT VULNERABLE (your CPU microcode mitigates the vulnerability) - CVE-2018-3639 aka 'Variant 4, speculative store bypass' + CVE-2018-3639 aka Variant 4, speculative store bypass * Mitigated according to the /sys interface: YES (Mitigation: Speculative Store Bypass disabled via prctl and seccomp) - * Kernel supports disabling speculative store bypass (SSB): YES (found in /proc/self/status) - * SSB mitigation is enabled and active: YES (per-thread through prctl) - * SSB mitigation currently active for selected processes: YES ((deleted) systemd-journald systemd-logind systemd-networkd systemd-resolved systemd-timesyncd systemd-udevd) > STATUS: NOT VULNERABLE (Mitigation: Speculative Store Bypass disabled via prctl and seccomp) - CVE-2018-3615 aka 'Foreshadow (SGX), L1 terminal fault' + CVE-2018-3615 aka Foreshadow (SGX), L1 terminal fault * CPU microcode mitigates the vulnerability: N/A > STATUS: NOT VULNERABLE (your CPU vendor reported your CPU model as not vulnerable) - CVE-2018-3620 aka 'Foreshadow-NG (OS), L1 terminal fault' + CVE-2018-3620 aka Foreshadow-NG (OS), L1 terminal fault * Mitigated according to the /sys interface: YES (Not affected) - * Kernel supports PTE inversion: YES (found in kernel image) - * PTE inversion enabled and active: NO - > STATUS: NOT VULNERABLE (your CPU vendor reported your CPU model as not vulnerable) + > STATUS: NOT VULNERABLE (Not affected) - CVE-2018-3646 aka 'Foreshadow-NG (VMM), L1 terminal fault' + CVE-2018-3646 aka Foreshadow-NG (VMM), L1 terminal fault * Information from the /sys interface: Not affected - * This system is a host running a hypervisor: NO - * Mitigation 1 (KVM) - * EPT is disabled: NO - * Mitigation 2 - * L1D flush is supported by kernel: YES (found flush_l1d in /proc/cpuinfo) - * L1D flush enabled: NO - * Hardware-backed L1D flush supported: YES (performance impact of the mitigation will be greatly reduced) - - * Hyper-Threading (SMT) is enabled: YES - > STATUS: NOT VULNERABLE (your CPU vendor reported your CPU model as not vulnerable) + > STATUS: NOT VULNERABLE (your kernel reported your CPU model as not vulnerable) - CVE-2018-12126 aka 'Fallout, microarchitectural store buffer data sampling (MSBDS)' + CVE-2018-12126 aka Fallout, microarchitectural store buffer data sampling (MSBDS) * Mitigated according to the /sys interface: YES (Not affected) - * Kernel supports using MD_CLEAR mitigation: YES (md_clear found in /proc/cpuinfo) - * Kernel mitigation is enabled and active: NO - * SMT is either mitigated or disabled: NO > STATUS: NOT VULNERABLE (your CPU vendor reported your CPU model as not vulnerable) - CVE-2018-12130 aka 'ZombieLoad, microarchitectural fill buffer data sampling (MFBDS)' + CVE-2018-12130 aka ZombieLoad, microarchitectural fill buffer data sampling (MFBDS) * Mitigated according to the /sys interface: YES (Not affected) - * Kernel supports using MD_CLEAR mitigation: YES (md_clear found in /proc/cpuinfo) - * Kernel mitigation is enabled and active: NO - * SMT is either mitigated or disabled: NO > STATUS: NOT VULNERABLE (your CPU vendor reported your CPU model as not vulnerable) - CVE-2018-12127 aka 'RIDL, microarchitectural load port data sampling (MLPDS)' + CVE-2018-12127 aka RIDL, microarchitectural load port data sampling (MLPDS) * Mitigated according to the /sys interface: YES (Not affected) - * Kernel supports using MD_CLEAR mitigation: YES (md_clear found in /proc/cpuinfo) - * Kernel mitigation is enabled and active: NO - * SMT is either mitigated or disabled: NO > STATUS: NOT VULNERABLE (your CPU vendor reported your CPU model as not vulnerable) - CVE-2019-11091 aka 'RIDL, microarchitectural data sampling uncacheable memory (MDSUM)' + CVE-2019-11091 aka RIDL, microarchitectural data sampling uncacheable memory (MDSUM) * Mitigated according to the /sys interface: YES (Not affected) - * Kernel supports using MD_CLEAR mitigation: YES (md_clear found in /proc/cpuinfo) - * Kernel mitigation is enabled and active: NO - * SMT is either mitigated or disabled: NO > STATUS: NOT VULNERABLE (your CPU vendor reported your CPU model as not vulnerable) - > SUMMARY: CVE-2017-5753:OK CVE-2017-5715:OK CVE-2017-5754:OK CVE-2018-3640:OK CVE-2018-3639:OK 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 aka ZombieLoad V2, TSX Asynchronous Abort (TAA) + * Mitigated according to the /sys interface: YES (Mitigation: TSX disabled) + > STATUS: NOT VULNERABLE (your CPU vendor reported your CPU model as not vulnerable) + + CVE-2018-12207 aka No eXcuses, iTLB Multihit, machine check exception on page size changes (MCEPSC) + * Mitigated according to the /sys interface: YES (KVM: Mitigation: Split huge pages) + > STATUS: NOT VULNERABLE (KVM: Mitigation: Split huge pages) + + CVE-2020-0543 aka Special Register Buffer Data Sampling (SRBDS) + * Mitigated according to the /sys interface: YES (Not affected) + > STATUS: NOT VULNERABLE (your CPU vendor reported your CPU model as not vulnerable) + > SUMMARY: CVE-2017-5753:?? CVE-2017-5715:KO CVE-2017-5754:OK CVE-2018-3640:OK CVE-2018-3639:OK 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