漏洞信息
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Vulnerability Title
Out-of-bounds write in Napoca real-mode hook handler via guest-controlled SS:SP (VA-13905)
Vulnerability Description
The Bitdefender Napoca bare-metal hypervisor contains an out-of-bounds write vulnerability in the real-mode hook handler, implemented in napoca/kernel/handler.c. The handler uses a guest-controlled SS:SP-derived offset as an index into the 1MB RealModeMemory buffer without bounds validation. With SS=0xFFFF and ESP=0xFFFF, the computed offset can reach 0x10FFEF, exceeding the RealModeMemory buffer by 65,519 bytes. The IRET frame push can therefore write past the end of the buffer into the hypervisor heap. The product is end-of-life and unsupported when assigned.
CVSS Information
N/A
Vulnerability Type
跨界内存写
Vulnerability Title
Bitdefender Napoca 缓冲区错误漏洞
Vulnerability Description
Bitdefender Napoca是Bitdefender开源的一个轻量级Type-1裸机虚拟机监控器。 Bitdefender Napoca存在缓冲区错误漏洞,该漏洞源于实模式钩子处理程序中越界写入,可能导致IRET帧推送写入超出RealModeMemory缓冲区末尾65,519字节到虚拟机管理程序堆中。
CVSS Information
N/A
Vulnerability Type
N/A