AMD Zen全系高危漏洞！海光CPU丝毫不受影响_老虎社区_美港股上老虎

AMD Zen全系高危漏洞！海光CPU丝毫不受影响

快科技01-20

快科技1月20日消息，近日，国际安全研究机构披露了一个高危级别的CPU处理器硬件漏洞“StackWarp”，影响AMD Zen1-Zen5的全系多代产品。对此，AMD已经发布了微码缓解方案，但在硬件级修复之前，部分防护措施需要以关闭同步多线程为代价，对系统算力和部署成本造成影响。国产处理器的安全能力也随之受到审视，尤其是同样源于AMD Zen初代架构的海光。不过根据业内调查结果，海光C86处理器不...

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Zen初代架构的海光。不过根据业内调查结果，海光C86处理器不...</p>\n\n<a href=\"https://tech.ifeng.com/c/8q4364FFcQl\">网页链接</a>\n\n</div>\n\n\n</article>\n</div>\n</body>\n</html>\n","isBrief":false,"type":0,"news_type":1,"symbol":"AMDY","symbol_name":"AMD期权收益策略ETF-YieldMax","start_time":0,"source_url":"https://tech.ifeng.com/c/8q4364FFcQl","article_id":"2604682611","we_media_id":null,"thumbnails":[],"rights":null,"url":"https://stock-news.laohu8.com/highlight/detail?id=2604682611","pubTimestamp":1768877911,"columns":[],"sourceInfo":{"source_id":"fenghuang_stock","name":"凤凰网"},"weMediaInfo":null,"summary":"快科技1月20日消息，近日，国际安全研究机构披露了一个高危级别的CPU处理器硬件漏洞“StackWarp”，影响AMD Zen1-Zen5的全系多代产品。国产处理器的安全能力也随之受到审视，尤其是同样源于AMD Zen初代架构的海光。不过根据业内调查结果，海光C86处理器不受上述漏洞的影响。据悉，基于信创对安全性的高度重视，海光CPU已经基于完整的x86指令集永久授权，实现了C86的国产化自研，产品安全性能逐代提升。","collect":0,"end_time":0,"defaultTopTitle":"ifeng.com","property":[],"viewcount":null,"language":"zh","relate_stocks":{"AMDY":"AMD期权收益策略ETF-YieldMax","BK4612":"AI芯片","LU2458330243.SGD":"FRANKLIN SHARIAH 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Haiguang CPU is not affected at all","themeId":null,"isJumpTheme":false,"ttsUrl":null,"symbols_score_info":{"AMDG":0.6,"AMDD":0.6,"AMUU":0.6,"AMDY":0.6,"AMYY":0.6,"AMDU":0.6,"DAMD":0.6,"AMDW":0.6,"AMD":1.9},"content_text":"快科技1月20日消息，近日，国际安全研究机构披露了一个高危级别的CPU处理器硬件漏洞“StackWarp”，影响AMD Zen1-Zen5的全系多代产品。对此，AMD已经发布了微码缓解方案，但在硬件级修复之前，部分防护措施需要以关闭同步多线程为代价，对系统算力和部署成本造成影响。国产处理器的安全能力也随之受到审视，尤其是同样源于AMD Zen初代架构的海光。不过根据业内调查结果，海光C86处理器不受上述漏洞的影响。这是因为，StackWarp的攻击路径依赖于AMD SEV-SNP加密虚拟化技术的特定实现机制，而海光处理器采用的，是自主研发的加密虚拟化方案CSV3，硬件实现逻辑与SEV-SNP存在本质差异，因此从架构层面就不具备漏洞利用所需的前置条件，自然对StackWarp攻击具备原生免疫能力。据悉，基于信创对安全性的高度重视，海光CPU已经基于完整的x86指令集永久授权，实现了C86的国产化自研，产品安全性能逐代提升。在加密计算方面，海光CPU已经完成计算隔离、启动度量、远程认证、磁盘加密、密钥封印、加密容器、异构加速等一系列技术方案，确保所有数据形态下的安全使用。同时，得益于将安全技术模块内置到CPU中，该方案进一步减少了外设成本，率先打破了性能、安全、成本不可能“铁三角”。至于同样基于x86指令集的兆芯CPU，虽然未明确回应StackWarp漏洞问题，但此前官方已经明确表示，兆芯已掌握CPU设计的全部源代码，相关知识产权不受限，形成了完善、可自主发展的ZX86指令集知识产权体系。通过早期与威盛的深度合作，兆芯不仅掌握了CPU的核心功能、源代码和设计方法，更在此基础上进行了大量的指令集自主创新。同时对指令集的兼容性做了“双保险”设计，不仅能完全自主演进，还能确保后续产品与Intel在2018年之后申请的新指令集实现兼容适配。","kind":"news","is_publish_news":true,"is_publish_highlight":false,"is_publish_live":false,"is_publish_wemedia":null,"editions":null,"column":"","sentiment":"-2","news_tag":"policyRegulatory","news_rank":0,"symbols":[],"gpt_button":0,"need_auth":false,"code":"91000000","status":"200"},"commentList":[],"hasMoreComments":false,"newsSizeData":{"likeSize":0,"commentSize":0,"repostSize":0,"favoriteSize":1,"likeStatus":false,"favoriteStatus":false},"isCrawlerRequest":true}