A buffer overflow was reported in the SmuV11DxeVMR module in some Lenovo Desktop products that may allow a local attacker with elevated privileges to execute arbitrary code.

A buffer overflow was reported in the SmuV11Dxe driver in some Lenovo Desktop products that may allow a local attacker with elevated privileges to execute arbitrary code.

A buffer overflow was reported in the SmiFlash module in some Lenovo Desktop products that may allow a local attacker with elevated privileges to execute arbitrary code.

A buffer overflow was reported in the ReFlash module in some Lenovo Desktop products that may allow a local attacker with elevated privileges to execute arbitrary code.

A buffer overflow was reported in the WMISwSmi module in some Lenovo Desktop products that may allow a local attacker with elevated privileges to execute arbitrary code.

A buffer overflow was reported in the UltraFunctionTable module in some Lenovo Desktop products that may allow a local attacker with elevated privileges to execute arbitrary code.

A buffer over-read was reported in the LEMALLDriversConnectedEventHook module in some Lenovo Desktop products that may allow a local attacker with elevated privileges to disclose sensitive information.

A buffer overflow was reported in the LEMALLDriversConnectedEventHook module in some Lenovo Desktop products that may allow a local attacker with elevated privileges to execute arbitrary code.

A buffer over-read was reported in the BiosExtensionLoader module in some Lenovo Desktop products that may allow a local attacker with elevated privileges to disclose sensitive information.

A buffer overflow was reported in the BiosExtensionLoader module in some Lenovo Desktop products that may allow a local attacker with elevated privileges to execute arbitrary code.

A potential vulnerability was reported in the SMI callback function of the OemSmi driver that may allow a local attacker with elevated permissions to execute arbitrary code.

A buffer overflow was reported in the OemSmi module in some Lenovo Desktop products that may allow a local attacker with elevated privileges to execute arbitrary code. 

A buffer over-read was reported in the LemSecureBootForceKey module in some Lenovo Desktop products that may allow a local attacker with elevated privileges to disclose sensitive information.

A buffer overflow was reported in the LemSecureBootForceKey module in some Lenovo Desktop products that may allow a local attacker with elevated privileges to execute arbitrary code.

A read-only authentication bypass vulnerability was reported in the Third Quarter 2021 release of Lenovo XClarity Controller (XCC) firmware affecting XCC devices configured in LDAP Authentication Only Mode and using an LDAP server that supports “unauthenticated bind”, such as Microsoft Active Directory. An unauthenticated user can gain read-only access to XCC in such a configuration, thereby allowing the XCC device configuration to be viewed but not changed. XCC devices configured to use local authentication, LDAP Authentication + Authorization Mode, or LDAP servers that support only “authenticated bind” and/or “anonymous bind” are not affected.

A vulnerability was reported in some Lenovo Desktop models that could allow unauthorized access to the boot menu, when the "BIOS Password At Boot Device List" BIOS setting is Yes.

A potential vulnerability in the SMI callback function used in the System Lock Preinstallation driver in some Lenovo Notebook and ThinkStation models may allow arbitrary code execution.

Lenovo was notified of a potential denial of service vulnerability, affecting various versions of BIOS for Lenovo Desktop, Desktop - All in One, and ThinkStation, that could cause PCRs to be cleared intermittently after resuming from sleep (S3) on systems with Intel TXT enabled.

In Lenovo systems, SMM BIOS Write Protection is used to prevent writes to SPI Flash. While this provides sufficient protection, an additional layer of protection is provided by SPI Protected Range Registers (PRx). Lenovo was notified that after resuming from S3 sleep mode in various versions of BIOS for Lenovo systems, the PRx is not set. This does not impact the SMM BIOS Write Protection, which keeps systems protected.

Improper permissions in the installer for Intel(R) Accelerated Storage Manager in Intel(R) RSTe before version 5.5.0.2015 may allow an authenticated user to potentially enable escalation of privilege via local access. L-SA-00206