SB2024041075 - Microsoft Windows update for Lenovo products

Description

This security bulletin contains information about 2 vulnerabilities.

1) Stack-based buffer overflow (CVE-ID: CVE-2024-23594)

CWE-ID: CWE-121 - Stack-based buffer overflow

CVSSv4: CVSS:4.0/AV:A/AC:L/AT:P/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a remote user to compromise the target system.

The vulnerability exists due to a boundary error in LenovoBT.efi within System Recovery Bootloader. A remote administrator on the local network can trigger stack-based buffer overflow and bypass Secure Boot.

2) Stack-based buffer overflow (CVE-ID: CVE-2024-23593)

CWE-ID: CWE-121 - Stack-based buffer overflow

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user can gain elevated privileges.

The vulnerability exists due to a boundary error in System Recovery Bootloader. A local user can modify the boot manager and escalate privileges.

Remediation

Install update from vendor's website.

References

• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2024-23594
• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2024-23593