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苹果确认所有Mac和iOS设备都受英特尔芯片安全漏洞影响
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Topic: 苹果确认所有Mac和iOS设备都受英特尔芯片安全漏洞影响 (Read 53 times)
bailunfaa
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苹果确认所有Mac和iOS设备都受英特尔芯片安全漏洞影响
January 05, 2018, 05:23:26 AM
#1
腾讯科技讯 据外电报道,苹果周四证实,搭载该公司移动和个人电脑操作系统的所有设备,都受到周三公布的两个芯片漏洞的影响。这也是苹果首次针对近日来不断发酵的芯片漏洞一事进行官方表态。
苹果在官网支持论坛中发贴称:“所有的Mac系统和iOS设备都受到了影响,但目前尚不清楚是否有用户受到影响。”苹果表示,该公司最近发布的Mac、iOS和tvOS更新,能够帮助减轻漏洞“熔断”(Meltdown)的影响。
相对于“熔断”,“幽灵”(Spectre)影响到更多的芯片,其中就包括被iPhone和iPad使用的ARM架构的芯片。苹果表示,“幽灵”很难被利用。此外,该公司目前正在为Safari浏览器开发补丁,用来帮助抵挡“幽灵”。此外,苹果智能手表Apple Watch的操作系统不需要进行修复。
在被媒体曝光之后,英特尔周三承认该公司芯片设计中存在的两个漏洞,将影响到包括笔记本电脑、台式机、智能手机、平板电脑和互联网服务器在内的所有硬件设备。该公司周四又表示,已为过去5年制造的绝大多数处理器发布了补丁,且更多的更新将会陆续发布。英特尔在声明中称,“公司已为过去5年制造的绝大多数处理器发布了补丁,预计到下周末将为超过90%的过去5年制造的处理器发布补丁。”
网络安全研究人员此前详细披露了“熔断”和“幽灵”这两个安全漏洞。他们表示,上述两个安全漏洞存在于英特尔、AMD和ARM架构的芯片中。其中“熔断”只存在于英特尔芯片中,让黑客能够绕过由用户运行的应用程序和计算机内存之间的硬件屏障,能够让黑客读取计算机内存数据,并窃取密码。“幽灵”影响到了包括笔记本电脑、台式机、智能手机、平板电脑和互联网服务器在内的所有硬件设备,让黑客能够诱骗其他无错误的应用程序放弃机密信息。研究人员表示,微软和苹果两家公司已为用户发布了受“熔断”影响的台式机补丁。
除去安全问题外,媒体此前还报道还称,Windows、Linux的系统更新将会影响英特尔产品的性能,预计会导致英特尔芯片速度放慢5%至30%,具体取决于任务类型和处理器型号。苹果的64位macOS等类似系统也需要进行更新,因为这一缺陷存在于英特尔的x86芯片中。对于这一问题,英特尔在周三的声明中称:“任何性能影响都取决于工作负载。对普通计算机用户而言,不会受到太大的影响,且这种影响会随着时间的推移而减轻。”
苹果周四对此表示,所有的补丁对设备的性能“没有可测量的影响”。该公司同时建议用户从类似苹果应用商店App Store之类的“可靠来源”下载应用和软件,因为黑客要利用这些漏洞,首先需要在用户的Mac或iOS设备中加载恶意应用。
在证实所有设备都受到芯片漏洞影响之前,苹果正饱受“降速门”之苦。苹果已公开承认“降速门”,该公司公布的一份清单也显示,处理器降速将会影响到诸多的用户体验,包括扬声器音量会降低,手机软件启动的速度更缓慢,另外在滚动屏幕时的画面刷新率将会降低,影响视觉效果等。面对消费者的强烈不满,苹果已经推出了29美元更换电池的服务。第三方的维修公司也推出了类似价格的服务。
苹果股价周四在纳斯达克证券市场常规交易中报收于173.03美元,较上一交易日上涨0.80美元,涨幅为0.46%。过去52周,苹果最低股价为115.81美元,最高股价为177.20美元。按照周四的收盘价计算,苹果市值约为8802亿美元。(编译/明轩)
(编辑:林辰)
nihaomei
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Re: 苹果确认所有Mac和iOS设备都受英特尔芯片安全漏洞影响
January 05, 2018, 09:10:13 AM
#2
苹果已公开承认“降速门”,知错能改,善莫大焉!
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