j_c_p Linux user | Ici : Spectre and Meltdown mitigation detection tool
phoenix64 /home/jcp/poub # ./spectre-meltdown-checker.sh Spectre and Meltdown mitigation detection tool v0.46
Checking for vulnerabilities on current system
Kernel is Linux 6.4.8 #1 SMP PREEMPT_DYNAMIC Thu Aug 3 23:21:06 CEST 2023 x86_64
CPU is AMD FX(tm)-8300 Eight-Core Processor
Hardware check
* Hardware support (CPU microcode) for mitigation techniques
* Indirect Branch Restricted Speculation (IBRS)
* SPEC_CTRL MSR is available: UNKNOWN (is msr kernel module available?)
* CPU indicates IBRS capability: NO * CPU indicates preferring IBRS always-on: NO * CPU indicates preferring IBRS over retpoline: NO * Indirect Branch Prediction Barrier (IBPB)
* CPU indicates IBPB capability: YES (IBPB_SUPPORT feature bit)
* Single Thread Indirect Branch Predictors (STIBP)
* SPEC_CTRL MSR is available: UNKNOWN (is msr kernel module available?)
* CPU indicates STIBP capability: NO * CPU indicates preferring STIBP always-on: NO * Speculative Store Bypass Disable (SSBD)
* CPU indicates SSBD capability: YES (AMD non-architectural MSR)
* L1 data cache invalidation
* CPU indicates L1D flush capability: NO * 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 fix Zenbleed: NO * CPU microcode is known to cause stability problems: NO (family 0x15 model 0x2 stepping 0x0 ucode 0x6000852 cpuid 0x600f20)
* CPU microcode is the latest known available version: YES (latest version is 0x6000852 dated 2018/02/06 according to builtin firmwares DB v273+i20230808+b6bd)
* 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): NO * 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): NO * Affected by CVE-2018-3646 (Foreshadow-NG (VMM), L1 terminal fault): NO * 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)): NO * Affected by CVE-2020-0543 (Special Register Buffer Data Sampling (SRBDS)): NO * Affected by CVE-2023-20593 (Zenbleed, cross-process information leak): NO * Affected by CVE-2022-40982 (Downfall, gather data sampling (GDS)): 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)
* Kernel has array_index_mask_nospec: NO * Kernel has the Red Hat/Ubuntu patch: NO * Kernel has mask_nospec64 (arm64): NO * Kernel has array_index_nospec (arm64): NO * Checking count of LFENCE instructions following a jump in kernel... NO (only 24 jump-then-lfence instructions found, should be >= 30 (heuristic))
> STATUS: NOT VULNERABLE (Mitigation: usercopy/swapgs barriers and __user pointer sanitization)
CVE-2017-5715 aka 'Spectre Variant 2, branch target injection'
* Mitigated according to the /sys interface: YES (Mitigation: Retpolines, IBPB: conditional, STIBP: disabled, RSB filling, PBRSB-eIBRS: Not affected)
* Mitigation 1
* Kernel is compiled with IBRS support: YES * IBRS enabled and active: NO * 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 compiled with a retpoline-aware compiler: YES (kernel reports full retpoline compilation)
> STATUS: NOT VULNERABLE (Full retpoline + IBPB are mitigating 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): NO * PTI enabled and active: NO * Reduced performance impact of PTI: NO (PCID/INVPCID not supported, performance impact of PTI will be significant)
* Running as a Xen PV DomU: NO > STATUS: NOT VULNERABLE (your CPU vendor reported your CPU model as not affected)
CVE-2018-3640 aka 'Variant 3a, rogue system register read'
* CPU microcode mitigates the vulnerability: YES > STATUS: NOT VULNERABLE (your CPU vendor reported your CPU model as not affected)
CVE-2018-3639 aka 'Variant 4, speculative store bypass'
* Mitigated according to the /sys interface: YES (Mitigation: Speculative Store Bypass disabled via prctl)
* 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: NO (no process found using SSB mitigation through prctl)
> STATUS: NOT VULNERABLE (Mitigation: Speculative Store Bypass disabled via prctl)
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 affected)
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 affected)
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: N/A (the kvm_intel module is not loaded)
* Mitigation 2
* L1D flush is supported by kernel: YES (found flush_l1d in kernel image)
* L1D flush enabled: NO * Hardware-backed L1D flush supported: NO (flush will be done in software, this is slower)
* Hyper-Threading (SMT) is enabled: YES > STATUS: NOT VULNERABLE (your CPU vendor reported your CPU model as not affected)
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 (found md_clear implementation evidence in kernel image)
* 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 affected)
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 (found md_clear implementation evidence in kernel image)
* 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 affected)
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 (found md_clear implementation evidence in kernel image)
* 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 affected)
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 (found md_clear implementation evidence in kernel image)
* 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 affected)
CVE-2019-11135 aka 'ZombieLoad V2, TSX Asynchronous Abort (TAA)'
* Mitigated according to the /sys interface: YES (Not affected)
* TAA mitigation is supported by kernel: YES (found tsx_async_abort in kernel image)
* TAA mitigation enabled and active: NO > STATUS: NOT VULNERABLE (your CPU vendor reported your CPU model as not affected)
CVE-2018-12207 aka 'No eXcuses, iTLB Multihit, machine check exception on page size changes (MCEPSC)'
* Mitigated according to the /sys interface: YES (Not affected)
* This system is a host running a hypervisor: NO * iTLB Multihit mitigation is supported by kernel: YES (found itlb_multihit in kernel image)
* iTLB Multihit mitigation enabled and active: NO > STATUS: NOT VULNERABLE (your CPU vendor reported your CPU model as not affected)
CVE-2020-0543 aka 'Special Register Buffer Data Sampling (SRBDS)'
* Mitigated according to the /sys interface: YES (Not affected)
* SRBDS mitigation control is supported by the kernel: YES (found SRBDS implementation evidence in kernel image. Your kernel is up to date for SRBDS mitigation)
* SRBDS mitigation control is enabled and active: NO > STATUS: NOT VULNERABLE (your CPU vendor reported your CPU model as not affected)
CVE-2023-20593 aka 'Zenbleed, cross-process information leak'
* Zenbleed mitigation is supported by kernel: YES (found zenbleed message in kernel image)
* Zenbleed kernel mitigation enabled and active: N/A (CPU is incompatible)
* Zenbleed mitigation is supported by CPU microcode: UNKNOWN > STATUS: NOT VULNERABLE (your CPU vendor reported your CPU model as not affected)
CVE-2022-40982 aka 'Downfall, gather data sampling (GDS)'
* GDS is mitigated by microcode: NO * Kernel supports software mitigation by disabling AVX: NO > STATUS: NOT VULNERABLE (your CPU vendor reported your CPU model as not affected)
> 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:OK CVE-2018-12207:OK CVE-2020-0543:OK CVE-2023-20593:OK CVE-2022-40982:OK |
root@reborn:/usr/home/jcp # ./spectre-meltdown-checker.sh
Spectre and Meltdown mitigation detection tool v0.46
cpucontrol: ioctl(/dev/cpuctl0, CPUCTL_WRMSR (0x8b)): Bad address
Checking for vulnerabilities on current system
Kernel is FreeBSD 13.2-RELEASE-p2 FreeBSD 13.2-RELEASE-p2 GENERIC amd64
CPU is AMD E1-7010 APU with AMD Radeon R2 Graphics
Possible discrepancy between your running kernel '13.2-RELEASE-p2' and the image 'FreeBSD 12.x ABI compat' we found (/boot/kernel/kernel), results might be incorrect
Hardware check
* Hardware support (CPU microcode) for mitigation techniques
* Indirect Branch Restricted Speculation (IBRS)
* SPEC_CTRL MSR is available: NO
* CPU indicates IBRS capability: NO
* CPU indicates preferring IBRS always-on: NO
* CPU indicates preferring IBRS over retpoline: NO
* Indirect Branch Prediction Barrier (IBPB)
* CPU indicates IBPB capability: NO
* Single Thread Indirect Branch Predictors (STIBP)
* SPEC_CTRL MSR is available: NO
* CPU indicates STIBP capability: NO
* CPU indicates preferring STIBP always-on: NO
* Speculative Store Bypass Disable (SSBD)
* CPU indicates SSBD capability: YES (AMD non-architectural MSR)
* L1 data cache invalidation
* CPU indicates L1D flush capability: NO
* 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 fix Zenbleed: NO (required version: 0x0830107a)
* CPU microcode is known to cause stability problems: NO (family 0x16 model 0x30 stepping 0x1 ucode 0x0 cpuid 0x730f01)
* CPU microcode is the latest known available version: NO (latest version is 0x7030106 dated 2018/02/09 according to builtin firmwares DB v273+i20230808+b6bd)
* 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): NO
* 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): NO
* Affected by CVE-2018-3646 (Foreshadow-NG (VMM), L1 terminal fault): NO
* 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)): NO
* Affected by CVE-2020-0543 (Special Register Buffer Data Sampling (SRBDS)): NO
* Affected by CVE-2023-20593 (Zenbleed, cross-process information leak): NO
* Affected by CVE-2022-40982 (Downfall, gather data sampling (GDS)): NO
CVE-2017-5753 aka 'Spectre Variant 1, bounds check bypass'
> STATUS: VULNERABLE (no mitigation for BSD yet)
CVE-2017-5715 aka 'Spectre Variant 2, branch target injection'
* Mitigation 1
* Kernel supports IBRS: YES
* IBRS enabled and active: NO
* Mitigation 2
* Kernel compiled with RETPOLINE: NO
> STATUS: VULNERABLE (IBRS is supported but administratively disabled on your system)
CVE-2017-5754 aka 'Variant 3, Meltdown, rogue data cache load'
* Kernel supports Page Table Isolation (PTI): YES
* PTI enabled and active: NO
* Reduced performance impact of PTI: NO (PCID/INVPCID not supported, performance impact of PTI will be significant)
> STATUS: NOT VULNERABLE (your CPU vendor reported your CPU model as not affected)
CVE-2018-3640 aka 'Variant 3a, rogue system register read'
* CPU microcode mitigates the vulnerability: YES
> STATUS: NOT VULNERABLE (your CPU vendor reported your CPU model as not affected)
CVE-2018-3639 aka 'Variant 4, speculative store bypass'
* Kernel supports speculation store bypass: YES
* Speculation store bypass is administratively enabled: NO (disabled)
* Speculation store bypass is currently active: NO
> STATUS: VULNERABLE (you need to enable SSBD through sysctl to mitigate the vulnerability)
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 affected)
CVE-2018-3620 aka 'Foreshadow-NG (OS), L1 terminal fault'
* Kernel reserved the memory page at physical address 0x0: YES
> STATUS: NOT VULNERABLE (your CPU vendor reported your CPU model as not affected)
CVE-2018-3646 aka 'Foreshadow-NG (VMM), L1 terminal fault'
* Kernel supports L1D flushing: YES
* L1D flushing is enabled: NO
> STATUS: NOT VULNERABLE (your CPU vendor reported your CPU model as not affected)
CVE-2018-12126 aka 'Fallout, microarchitectural store buffer data sampling (MSBDS)'
* Kernel supports using MD_CLEAR mitigation: YES
* CPU Hyper-Threading (SMT) is disabled: NO
* Kernel mitigation is enabled: NO
* Kernel mitigation is active: NO
> STATUS: NOT VULNERABLE (your CPU vendor reported your CPU model as not affected)
CVE-2018-12130 aka 'ZombieLoad, microarchitectural fill buffer data sampling (MFBDS)'
* Kernel supports using MD_CLEAR mitigation: YES
* CPU Hyper-Threading (SMT) is disabled: NO
* Kernel mitigation is enabled: NO
* Kernel mitigation is active: NO
> STATUS: NOT VULNERABLE (your CPU vendor reported your CPU model as not affected)
CVE-2018-12127 aka 'RIDL, microarchitectural load port data sampling (MLPDS)'
* Kernel supports using MD_CLEAR mitigation: YES
* CPU Hyper-Threading (SMT) is disabled: NO
* Kernel mitigation is enabled: NO
* Kernel mitigation is active: NO
> STATUS: NOT VULNERABLE (your CPU vendor reported your CPU model as not affected)
CVE-2019-11091 aka 'RIDL, microarchitectural data sampling uncacheable memory (MDSUM)'
* Kernel supports using MD_CLEAR mitigation: YES
* CPU Hyper-Threading (SMT) is disabled: NO
* Kernel mitigation is enabled: NO
* Kernel mitigation is active: NO
> STATUS: NOT VULNERABLE (your CPU vendor reported your CPU model as not affected)
CVE-2019-11135 aka 'ZombieLoad V2, TSX Asynchronous Abort (TAA)'
> STATUS: NOT VULNERABLE (your CPU vendor reported your CPU model as not affected)
CVE-2018-12207 aka 'No eXcuses, iTLB Multihit, machine check exception on page size changes (MCEPSC)'
* Kernel supports disabling superpages for executable mappings under EPT: YES
* Superpages are disabled for executable mappings under EPT: YES
> STATUS: NOT VULNERABLE (your CPU vendor reported your CPU model as not affected)
CVE-2020-0543 aka 'Special Register Buffer Data Sampling (SRBDS)'
> STATUS: NOT VULNERABLE (your CPU vendor reported your CPU model as not affected)
CVE-2023-20593 aka 'Zenbleed, cross-process information leak'
Unsupported OS (FreeBSD)
CVE-2022-40982 aka 'Downfall, gather data sampling (GDS)'
Unsupported OS (FreeBSD).
> SUMMARY: CVE-2017-5753:KO CVE-2017-5715:KO CVE-2017-5754:OK CVE-2018-3640:OK 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 |
edit : sur FreeBSD, je suis à jour niveau kernel, en userland aussi (bref, pas de souci dans mon cas). Message édité par j_c_p le 11-08-2023 à 18:12:33
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