DSA-2021-240: Dell Client Platform Update for Multiple Vulnerabilities
概要: Dell Client Consumer and Commercial platform remediation is available for these vulnerabilities that may exploited by malicious users to compromise the affected systems.
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影響
High
詳細
| Proprietary Code CVEs | Description | CVSS Base Score | CVSS Vector String |
| CVE-2021-36342 | Dell BIOS contains an improper input validation vulnerability. A local authenticated malicious user may potentially exploit this vulnerability by using an SMI to gain arbitrary code execution in SMRAM. | 7.5 |
CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H |
| CVE-2021-36343 | Dell BIOS contains an improper input validation vulnerability. A local authenticated malicious user may potentially exploit this vulnerability by using an SMI to gain arbitrary code execution in SMRAM. | 7.5 |
CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H |
See the table below for Dell Client BIOS releases containing a resolution to this vulnerability. Dell recommends all customers update at the earliest opportunity.
Go to the Drivers and Downloads site for updates on the applicable products. To learn more, see Dell KB article Dell BIOS Updates, and download the update for your Dell computer.
Customers may use one of the Dell notification solutions to be notified and download driver, BIOS, and firmware updates automatically once available.
| Proprietary Code CVEs | Description | CVSS Base Score | CVSS Vector String |
| CVE-2021-36342 | Dell BIOS contains an improper input validation vulnerability. A local authenticated malicious user may potentially exploit this vulnerability by using an SMI to gain arbitrary code execution in SMRAM. | 7.5 |
CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H |
| CVE-2021-36343 | Dell BIOS contains an improper input validation vulnerability. A local authenticated malicious user may potentially exploit this vulnerability by using an SMI to gain arbitrary code execution in SMRAM. | 7.5 |
CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H |
See the table below for Dell Client BIOS releases containing a resolution to this vulnerability. Dell recommends all customers update at the earliest opportunity.
Go to the Drivers and Downloads site for updates on the applicable products. To learn more, see Dell KB article Dell BIOS Updates, and download the update for your Dell computer.
Customers may use one of the Dell notification solutions to be notified and download driver, BIOS, and firmware updates automatically once available.
確認
Dell would like to thank Assaf Carlsbad and Itai Liba from SentinelOne for reporting CVE-2021-36342 and JiaWei Yin (yngweijw) for reporting CVE-2021-36343
関連情報
法的免責事項
対象製品
Product Security Information文書のプロパティ
文書番号: 000193321
文書の種類: Dell Security Advisory
最終更新: 18 9月 2025
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