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英特尔CPU曝新漏洞"分支特权注入" 可窃取内核敏感数据

苏黎世联邦理工学院研究人员发现英特尔现代CPU存在名为"分支特权注入"(CVE-2024-45332)的硬件级漏洞,攻击者可利用分支预测器(BTB/IBP)更新与指令执行不同步的缺陷,在权限切换时突破用户态与内核态隔离,以99.8%准确率窃取密码、加密密钥等特权内存数据。该漏洞影响第9代(Coffee Lake)及后续所有英特尔处理器,实测在Ubuntu 24.04系统上能以5.6KB/秒速率读取受保护的/etc/shadow文件。英特尔已发布微代码更新修复,但会导致最高8.3%性能损耗。研究团队将于USENIX Security 2025会议公布完整技术细节。

来源:Bleeping Computer
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英特尔CPU曝新漏洞"分支特权注入" 可窃取内核敏感数据

苏黎世联邦理工学院研究人员发现英特尔现代CPU存在名为"分支特权注入"(CVE-2024-45332)的硬件级漏洞,攻击者可利用分支预测器(BTB/IBP)更新与指令执行不同步的缺陷,在权限切换时突破用户态与内核态隔离,以99.8%准确率窃取密码、加密密钥等特权内存数据。该漏洞影响第9代(Coffee Lake)及后续所有英特尔处理器,实测在Ubuntu 24.04系统上能以5.6KB/秒速率读取受保护的/etc/shadow文件。英特尔已发布微代码更新修复,但会导致最高8.3%性能损耗。研究团队将于USENIX Security 2025会议公布完整技术细节。

来源:Bleeping Computer

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Ng was convicted in April for conspiracy to incite a riot, public nuisance, arson, criminal damage, manufacturing of explosives, administering poison and wounding with intent to do grievous bodily harm between October 2019 and June 2020. The channel also called on people to turn out for illegal assemblies and listed the things that participants should bring along with them, showing prior planning was in the works for riots. The messages also incited people to hurl toxic gas bombs at police and MTR stations, he added. Telegram channels fall into two types: Judge Hui described Ng as inciting others to “commit a massacre” with three posts teaching people to make “toxic chlorine gas bombs,” target police stations, police quarters and the city’s metro stations. This offence was “rather serious,” the court said. You can invite up to 200 people from your contacts to join your channel as the next step. Select the users you want to add and click “Invite.” You can skip this step altogether.
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