Vulnerability Information
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Vulnerability Title
Stack overflow vulnerability in SMI handler on SmmSmbiosElog.
Vulnerability Description
An attacker can exploit this vulnerability to elevate privileges from ring 0 to ring -2, execute arbitrary code in System Management Mode - an environment more privileged than operating system (OS) and completely isolated from it. Running arbitrary code in SMM additionally bypasses SMM-based SPI flash protections against modifications, which can help an attacker to install a firmware backdoor/implant into BIOS. Such a malicious firmware code in BIOS could persist across operating system re-installs. Additionally, this vulnerability potentially could be used by malicious actors to bypass security mechanisms provided by UEFI firmware (for example, Secure Boot and some types of memory isolation for hypervisors). This issue affects: Module name: SmmSmbiosElog SHA256: 3a8acb4f9bddccb19ec3b22b22ad97963711550f76b27b606461cd5073a93b59 Module GUID: 8e61fd6b-7a8b-404f-b83f-aa90a47cabdf This issue affects: AMI Aptio 5.x. This issue affects: AMI Aptio 5.x.
CVSS Information
N/A
Vulnerability Type
栈缓冲区溢出
Vulnerability Title
Intel NUC M15 缓冲区错误漏洞
Vulnerability Description
Intel NUC M15是美国英特尔（Intel）公司的一种笔记本电脑套件。 Intel NUC M15 Laptop Kit BC0076之前版本存在安全漏洞，该漏洞源于权限提升，在系统管理模式下执行任意代码，在SMM中运行任意代码还会绕过基于SMM的SPI闪存保护以防止修改，这可以帮助攻击者将固件后门/植入物安装到BIOS中。BIOS中的此类恶意固件代码可能会在重新安装操作系统后持续存在，恶意行为者可能会利用此漏洞绕过UEFI固件提供的安全机制。
CVSS Information
N/A
Vulnerability Type
N/A