CVE-2022-40246— Arbitrary write vulnerability in SbPei module leads to arbitrary code execution during PEI phase.

Arbitrary write vulnerability in SbPei module leads to arbitrary code execution during PEI phase.

A potential attacker can write one byte by arbitrary address at the time of the PEI phase (only during S3 resume boot mode) and influence the subsequent boot stages. This can lead to the mitigations bypassing, physical memory contents disclosure, discovery of any secrets from any Virtual Machines (VMs) and bypassing memory isolation and confidential computing boundaries. Additionally, an attacker can build a payload which can be injected into the SMRAM memory. This issue affects: Module name: SbPei SHA256: d827182e5f9b7a9ff0b9d3e232f7cfac43b5237e2681e11f005be627a49283a9 Module GUID: c1fbd624-27ea-40d1-aa48-94c3dc5c7e0d

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Intel NUC M15 缓冲区错误漏洞

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，该漏洞源于潜在的攻击者可以在PEI阶段通过任意地址写入一个字节，并影响后续启动阶段。 这可能导致绕过缓解措施、物理内存内容泄露、从任何虚拟机中发现秘密以及绕过内存隔离和机密计算边界，攻击者可以构建可以注入SMRAM内存的有效载荷。

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