Dell Inspiron 15 7579 2-in-1 BIOS up to 1.30.x SMM Communication buffer overflow

Summaryinfo

A vulnerability, which was classified as critical, was found in Dell Inspiron 15 7579 2-in-1 BIOS up to 1.30.x. The impacted element is an unknown function of the component SMM Communication Handler. Such manipulation leads to buffer overflow. This vulnerability is referenced as CVE-2020-5388. The attack can be executed directly on the physical device. No exploit is available. You should upgrade the affected component.

Detailsinfo

A vulnerability was found in Dell Inspiron 15 7579 2-in-1 BIOS up to 1.30.x. It has been rated as critical. Affected by this issue is some unknown functionality of the component SMM Communication Handler. The manipulation with an unknown input leads to a buffer overflow vulnerability. Using CWE to declare the problem leads to CWE-120. The product copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer, leading to a buffer overflow. Impacted is confidentiality, integrity, and availability.

The weakness was published 11/10/2020. The advisory is shared for download at dell.com. This vulnerability is handled as CVE-2020-5388. The exploitation is known to be difficult. The attack needs to be approached locally. The exploitation requires an enhanced level of successful authentication. There are neither technical details nor an exploit publicly available.

Upgrading to version 1.31.0 eliminates this vulnerability.

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Productinfo

Vendor

• Dell

Name

• Inspiron 15 7579 2-in-1 BIOS

Version

• 1.0
• 1.1
• 1.2
• 1.3
• 1.4
• 1.5
• 1.6
• 1.7
• 1.8
• 1.9
• 1.10
• 1.11
• 1.12
• 1.13
• 1.14
• 1.15
• 1.16
• 1.17
• 1.18
• 1.19
• 1.20
• 1.21
• 1.22
• 1.23
• 1.24
• 1.25
• 1.26
• 1.27
• 1.28
• 1.29
• 1.30

License

• commercial

Website

• Vendor: https://www.dell.com/

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