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CVE-2023-40238

5.5 · MEDIUM

A LogoFAIL issue was discovered in BmpDecoderDxe in Insyde InsydeH2O with kernel 5.2 before 05.28.47, 5.3 before 05.37.47, 5.4 before 05.45.47, 5.5 before 05.53.47, and 5.6 before 05.60.47 for cert…

Published Dec 7, 2023CWE-312EPSS 1.84%

Overview

CVE-2023-40238 is a medium-severity vulnerability. It was published on December 7, 2023 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

This vulnerability has a CVSS 3.1 base score of 5.5, rated MEDIUM. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

Technical description

A LogoFAIL issue was discovered in BmpDecoderDxe in Insyde InsydeH2O with kernel 5.2 before 05.28.47, 5.3 before 05.37.47, 5.4 before 05.45.47, 5.5 before 05.53.47, and 5.6 before 05.60.47 for certain Lenovo devices. Image parsing of crafted BMP logo files can copy data to a specific address during the DXE phase of UEFI execution. This occurs because of an integer signedness error involving PixelHeight and PixelWidth during RLE4/RLE8 compression.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

Refbinarly.io/posts/finding_logofail_the_dangers_of_image_parsing_during_system_boot/index.htmlRefsecurity.netapp.com/advisory/ntap-20240105-0002/Refwww.insyde.com/security-pledgeRefwww.insyde.com/security-pledge/SA-2023053Refwww.kb.cert.org/vuls/id/811862Refbinarly.io/posts/finding_logofail_the_dangers_of_image_parsing_during_system_boot/index.htmlRefsecurity.netapp.com/advisory/ntap-20240105-0002/Refwww.insyde.com/security-pledgeRefwww.insyde.com/security-pledge/SA-2023053Refwww.kb.cert.org/vuls/id/811862

How CyberStrike helps

Frequently asked questions

What is CVE-2023-40238?

CVE-2023-40238 is a medium-severity vulnerability. It was published on December 7, 2023 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

How severe is CVE-2023-40238?

This vulnerability has a CVSS 3.1 base score of 5.5, rated MEDIUM. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2023-40238?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2023-40238?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2023-40238 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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