发布日期：2021-06-08
更新日期：2021-06-15

受影响系统：

Dell PowerEdge R640 < 2.11.2
Dell PowerEdge R740 < 2.11.2
Dell PowerEdge R740XD < 2.11.2
Dell PowerEdge R840 < 2.11.2
Dell PowerEdge R940 < 2.11.2
Dell PowerEdge R940xa < 2.11.2
Dell PowerEdge MX740c < 2.11.2
Dell PowerEdge MX840c < 2.11.2
Dell PowerEdge R540 < 2.11.2
Dell PowerEdge R440 < 2.11.2
Dell PowerEdge T440 < 2.11.2
Dell PowerEdge XR2 < 2.11.2
Dell PowerEdge R740XD2 < 2.11.2
Dell PowerEdge T640 < 2.11.2
Dell PowerEdge C6420 < 2.11.2
Dell PowerEdge FC640 < 2.11.2
Dell PowerEdge M640 < 2.11.2
Dell PowerEdge M640P < 2.11.2
Dell PowerEdge C4140 < 2.11.2
Dell PowerEdge T140 < 2.5.1
Dell PowerEdge T340 < 2.5.1
Dell PowerEdge R240 < 2.5.1
Dell PowerEdge R340 < 2.5.1
Dell PowerEdge R6415 < 1.16.1
Dell PowerEdge R7415 < 1.16.1
Dell PowerEdge R7425 < 1.16.1
Dell PowerEdge R6515 < 2.2.4
Dell PowerEdge R7515 < 2.2.4
Dell PowerEdge R6525 < 2.2.5
Dell PowerEdge R7525 < 2.2.5
Dell PowerEdge C625 < 2.2.4

描述：

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CVE(CAN) ID: CVE-2021-21557

PowerEdge 系列服务器在设计中将功能与性能扩展能力恰当地组合在一起，能够处理大小数据中心环境中的工作负载。
Dell PowerEdge多款安装了Intel Optane DC Persistent Memory的产品的系统存在越界读取漏洞。本地攻击者可利用该漏洞导致UEFI或BIOS Preboot环境中发生拒绝服务、任意代码执行或信息泄露。

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建议：

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厂商补丁：

Dell
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目前厂商已经发布了升级补丁以修复这个安全问题，请到厂商的主页下载：

https://www.dell.com/support/kbdoc/zh-cn/000187958/dsa-2021-103-dell-emc-poweredge-server-security-update-for-bios-vulnerabilities

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