Compiler Optimization Removal or Modification of Security-Critical Code vulnerability in Bitdefender Hypervisor Introspection (VA-9339)

Compiler Optimization Removal or Modification of Security-critical Code vulnerability in IntPeParseUnwindData() results in multiple dereferences to the same pointer. If the pointer is located in memory-mapped from the guest space, this may cause a race-condition where the generated code would dereference the same address twice, thus obtaining different values, which may lead to arbitrary code execution. This issue affects: Bitdefender Hypervisor Introspection versions prior to 1.132.2.

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

编译器优化对安全关键代码的移除或修改

Bitdefender Hypervisor Introspection 安全漏洞

Bidefender Hypervisor Introspection（HVI）是罗马尼亚Bidefender公司的一款处于Hypervisor层利用Xen和KVM虚拟机管理程序中的虚拟机自检API来检查运行中的虚拟机内存安全的软件。该软件通过虚拟化内存管理单元（MMU）的扩展页表（EPT）级别来阻止异常内存内的代码执行，通过应用安全逻辑，HVI搜索攻击技术，例如缓冲区溢出，堆喷射和代码注入，以在攻击者获得目标系统的立足点之前检测并阻止恶意活动。 Bitdefender Hypervisor Intros

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