在Spectre-V1攻击方式中,攻击者正式通过这种错误的训练来误导分支预测器,使之做出错误的预测,从而错误地执行某些本不该执行的分支代码;由于Spectre-V1只利用了条件分支预测器,并没有依赖于CPU的乱序执行(out-of-order),所以理论上该攻击算法同样适用于顺序执行(in-order)的处理器; 5.1.2攻击函数 让我们考虑如下的...
换而言之,如果在Linux下用一般的GCC编译器对程序进行编译,即可实施Spectre V1攻击。 于是,通过运行Github上的spectre-attack程序来查看受害者程序是否真的能够被Spectre V1攻击窃取一些秘密信息: 对受害者程序进行Spectre V1攻击 至此,确认Spectre V1攻击在Linux下可以被实施,接下来将通过具体的程序实施Spectre V1攻击...
围绕Spectre V1 SWAPGS 处理器侧信道漏洞的一些重要修复已经在 Linux-5.16-rc4 内核中登陆,相关的 Spectre V1 修复补丁来源于阿里 Linux 工程师赖江山()。 去年Spectre V1 漏洞相关的 Linux 内核提交导致 SWAPGS 处理部分比较混乱:Spectre V1 SWAPGS 漏洞缓解方案在路径中丢失了防护 。因此,赖江山的第一个补丁就是...
Red Hat has been made aware of a new subvariant of the Spectre v1 class of vulnerabilities disclosed earlier this year. As with the earlier vulnerabilities, this industry-wide vulnerability exists in many microprocessors that implement speculative execution of instructions. Mitigation requires updates t...
Product name HP Spectre - 13-v135tu Microprocessor Intel® Core™ i7-7500U (2.7 GHz, up to 3.5 GHz with Intel® Turbo Boost Technology, 4 MB cache, 2 cores) Memory, standard 8 GB LPDDR3-1866 SDRAM (onboard) Video graphics ...
spectre_v1.exe [address] [length] spectre_v4.exe [address] [length] spectre_v4_asm.exe [address] [length] Run examples without arguments to read data from local process memory. Additional Information Run commands: $ cat /sys/devices/system/cpu/vulnerabilities/meltdown Vulnerable $ cat /sys...
Following messages observed in/proc/cpuinfo Raw # cat /proc/cpuinfo | grep bugs bugs: cpu_meltdown spectre_v1 spectre_v2 spec_store_bypass l1tf mds swapgs taa itlb_multihit mmio_stale_data bugs: cpu_meltdown spectre_v1 spectre_v2 spec_store_bypass l1tf mds swapgs taa itlb_multihit mmio...
Linux Kernel Hardens Sound Drivers Against Spectre V1 VulnerabilityPhoronix
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v1-stable spectre/.gitignore Go to file 27 lines (26 sloc) 310 Bytes Raw Blame *.gob *.key *.vim .deploy .dev .fontello bootstrap-2.3.2 ghostbin paste paste.linux pastes/* public/css/*.less.css public/css/*.gen.css public/css/*.min.css public/js/*.gen.js public/js/...