CVE-2023-40238

Public Exploit

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.

Category

5.5
CVSS
Severity: Medium
CVSS 3.1 •
EPSS 0.10%
Vendor Advisory insyde.com Vendor Advisory insyde.com
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://www.insyde.com/security-pledge vendor advisory
https://www.kb.cert.org/vuls/id/811862 third party advisory
https://www.insyde.com/security-pledge/SA-2023053 vendor advisory
https://binarly.io/posts/finding_logofail_the_dangers_of_image_parsing_during_system_boot/index.html exploit
https://security.netapp.com/advisory/ntap-20240105-0002/

Frequently Asked Questions

What is the severity of CVE-2023-40238?
CVE-2023-40238 has been scored as a medium severity vulnerability.
How to fix CVE-2023-40238?
To fix CVE-2023-40238, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2023-40238 being actively exploited in the wild?
It is possible that CVE-2023-40238 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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