漏洞信息
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Vulnerability Title
SMM Arbitrary Memory Access via Flash Handler with Unchecked FuncBlock Pointer
Vulnerability Description
A vulnerability in the Software SMI handler (SwSmiInputValue 0x20) allows a local attacker to supply a crafted pointer (FuncBlock) through RBX and RCX register values. This pointer is passed unchecked into multiple flash management functions (ReadFlash, WriteFlash, EraseFlash, and GetFlashInfo) that dereference both the structure and its nested members, such as BufAddr. This enables arbitrary read/write access to System Management RAM (SMRAM), allowing an attacker to corrupt firmware memory, exfiltrate SMRAM content via flash, or install persistent implants.
CVSS Information
N/A
Vulnerability Type
N/A
Vulnerability Title
GIGABYTE Chipsets 安全漏洞
Vulnerability Description
GIGABYTE Chipsets是中国台湾技嘉(GIGABYTE)开源的一系列芯片组。 GIGABYTE Chipsets存在安全漏洞,该漏洞源于未验证指针,可能导致任意读写访问和权限提升。
CVSS Information
N/A
Vulnerability Type
N/A