Vulnerability Intelligence

Public vulnerability intelligence, dependency exposure and research context for npm packages.

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UEFI & Secure Boot

Firmware boot-chain trust boundary and Secure Boot bypass risk

UEFI / Secure Boot
Current tracked
Fixed
Affected Vendor-specific UEFI firmware using vulnerable boot logo/image parsing components; confirmed public tracking includes CVE-2023-40238 for Insyde InsydeH2O on certain Lenovo devices.

UEFI e Secure Boot formam a base de confiança inicial do sistema antes do carregamento do sistema operacional. Vulnerabilidades como LogoFAIL mostram que componentes de firmware responsáveis por interpretar imagens de logo durante o boot podem introduzir risco abaixo do sistema operacional, especialmente quando o parser vulnerável é alcançável por configurações ou artefatos de firmware controláveis por atacante privilegiado.

Category Firmware Security
Ecosystem Firmware Ecosystem
Common usage Used in PC, laptop, server and appliance boot chains to initialize hardware, load boot components and enforce Secure Boot policy before the operating system starts.
Risk model Risk emerges when pre-OS firmware components parse attacker-influenced data before operating-system security controls are available. Exploitation can affect boot integrity, persistence, trust anchors and Secure Boot assumptions.
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Why it is widely used
Runs before the operating system, below most endpoint security controls.
LogoFAIL shows that image parsing inside UEFI firmware can become a boot-chain attack surface.
Successful exploitation may affect boot integrity, persistence and Secure Boot assumptions.
Remediation depends on OEM BIOS or UEFI firmware updates, not normal application patching.
Firmware exposure is difficult to inventory because risk depends on device model, BIOS vendor and firmware version.
Risk score 88
Known issues 1
Exploit maturity Public CVE; vendor-specific exploitation path; firmware update required
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Vulnerability burndown
Dec 2023 Dec 2023
Critical High Medium
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MTTR critical severity
0 days
No data
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Library risk age
927 days
100% lower than last month
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Total vulnerabilities
1 Vulnerabilities
Critical 0 High 0 Medium 1 Low 0
Severity Vulnerability name Library Surface Status Published date SLA Tags Actions
Medium LogoFAIL BMP Image Parsing Vulnerability in UEFI DXE Driver Insyde InsydeH2O kernel 5.2 before 05.28.47; 5.3 before 05.37.47; 5.4 before 05.45.47; 5.5 before 05 UEFI DXE boot logo image parser Published 2023-12-06 Vendor firmware update required UEFI
No vulnerability records match the selected filter.
FikreSekhel Research

Research Notes

Behavioral findings, exploitability observations and operational dependency intelligence produced by FikreSekhel for this library.

FS-UEFI-LOGOFAIL-001

LogoFAIL: Image Parsing as a Pre-OS Firmware Trust Boundary

Why boot logo parsing inside UEFI firmware can become a Secure Boot and firmware persistence risk.

Research Medium High
LogoFAIL demonstrates that UEFI firmware image parsers can become security-relevant attack surfaces before the operating system starts. CVE-2023-40238 publicly tracks a LogoFAIL issue in Insyde InsydeH2O BmpDecoderDxe affecting certain Lenovo devices.
Surface UEFI DXE boot logo parser
Primitive Firmware image parsing before operating system startup
Tested versions Not independently tested; based on public NVD, CERT/CC and vendor advisory information.
Observed behavior

Public reporting does not require assuming a normal application-level exploit path. The relevant behavior is that attacker-influenced image data may be processed inside firmware before OS-level endpoint controls, EDR hooks, application sandboxing or normal patch management workflows are available.

Security implication

The security concern is not simply image parsing. The concern is where the parsing occurs: below the operating system, inside the boot chain, close to firmware trust anchors and Secure Boot assumptions. A vulnerable UEFI image parser can create risk around boot integrity, firmware persistence, Secure Boot policy expectations and device-level remediation complexity.

Mitigation

Mitigation requires OEM or firmware-vendor BIOS/UEFI updates. Normal package updates or application dependency patching are not sufficient. Asset owners should inventory device model, OEM, BIOS/UEFI vendor and firmware version, then compare against vendor advisories and install the relevant firmware update.

Observed before mitigation 
Before remediation, vulnerable firmware may include image parsing code reachable during early boot or firmware setup, creating a pre-OS attack surface outside normal application patching visibility.
Observed after mitigation 
After remediation, the device should run an OEM BIOS/UEFI version that incorporates the relevant InsydeH2O or vendor fixes, reducing exposure in the boot logo parsing path.
View mitigation code 
Apply OEM BIOS/UEFI firmware updates that include fixes for CVE-2023-40238 or related LogoFAIL advisories. Maintain Secure Boot enabled, restrict firmware configuration changes, protect the EFI System Partition, and monitor firmware update compliance by model and BIOS version.
View FRES detection heuristic 
FRES should classify this as a firmware trust-boundary exposure when asset inventory identifies UEFI/Secure Boot systems with vulnerable firmware versions. Increase priority when the device is server-class, administrator-managed, or part of critical infrastructure, and when firmware update status is unknown.
Exploitability Analysis 2023-12-06
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