dell poweredge_r640_firmware 跨界内存写

CVE编号

CVE-2021-21554

利用情况

暂无

补丁情况

N/A

披露时间

2021-06-15

漏洞描述

Dell PowerEdge R640, R740, R740XD, R840, R940, R940xa, MX740c, MX840c, and, Dell Precision 7920 Rack Workstation BIOS contain a stack-based buffer overflow vulnerability in systems with Intel Optane DC Persistent Memory installed. A local malicious user with high privileges may potentially exploit this vulnerability, leading to a denial of Service, arbitrary code execution, or information disclosure in UEFI or BIOS Preboot Environment.

解决建议

建议您更新当前系统或软件至最新版，完成漏洞的修复。

参考链接
https://www.dell.com/support/kbdoc/000187958

受影响软件情况

#	类型	厂商	产品	版本	影响面
1
	运行在以下环境
	系统	dell	poweredge_mx740c_firmware	*		Up to (excluding) 2.9.4
	运行在以下环境
	系统	dell	poweredge_mx840c_firmware	*		Up to (excluding) 2.9.4
	运行在以下环境
	系统	dell	poweredge_r640_firmware	*		Up to (excluding) 2.9.4
	运行在以下环境
	系统	dell	poweredge_r740xd_firmware	*		Up to (excluding) 2.9.4
	运行在以下环境
	系统	dell	poweredge_r740_firmware	*		Up to (excluding) 2.9.4
	运行在以下环境
	系统	dell	poweredge_r840_firmware	*		Up to (excluding) 2.9.4
	运行在以下环境
	系统	dell	poweredge_r940xa_firmware	*		Up to (excluding) 2.9.4
	运行在以下环境
	系统	dell	poweredge_r940_firmware	*		Up to (excluding) 2.9.4
	运行在以下环境
	系统	dell	precision_7920_firmware	-	-
	运行在以下环境
	硬件	dell	poweredge_mx740c	-	-
	运行在以下环境
	硬件	dell	poweredge_mx840c	-	-
	运行在以下环境
	硬件	dell	poweredge_r640	-	-
	运行在以下环境
	硬件	dell	poweredge_r740	-	-
	运行在以下环境
	硬件	dell	poweredge_r740xd	-	-
	运行在以下环境
	硬件	dell	poweredge_r840	-	-
	运行在以下环境
	硬件	dell	poweredge_r940	-	-
	运行在以下环境
	硬件	dell	poweredge_r940xa	-	-
	运行在以下环境
	硬件	dell	precision_7920	-	-

CVSS3评分 6.7

• 攻击路径 本地
• 攻击复杂度 低
• 权限要求 高
• 影响范围 未更改
• 用户交互 无
• 可用性 高
• 保密性 高
• 完整性 高

CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

CWE-ID	漏洞类型
CWE-787	跨界内存写

Exp相关链接

- avd.aliyun.com