CVE:CVE-2020-27821
CNNVD:CNNVD-202012-099
QEMU（Quick Emulator）是法国法布里斯-贝拉（Fabrice Bellard）个人开发者的一套模拟处理器软件。该软件具有速度快、跨平台等特点。
QEMU 存在缓冲区错误漏洞，该漏洞源于 hw/pci/msix.c的msix_table_mmio_write()堆缓冲区溢出。
solution:Upgrade qemu qemu to a higher version than 5.2.0,and avoid the version (,5.2.0); Upgrade debian debian_linux to a higher version than 10.0,and avoid the version 10.0