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GoogleOSV:CVE-2021-3507HistoryMay 06, 2021 - 4:15 p.m.
CVE-2021-3507
2021-05-0616:15:07
Google
osv.dev
11
cve-2021-3507
qemu
heap buffer overflow
floppy disk emulator
dos
information leakage
dma read data transfers
guest system
privileged user
host memory
A heap buffer overflow was found in the floppy disk emulator of QEMU up to 6.0.0 (including). It could occur in fdctrl_transfer_handler() in hw/block/fdc.c while processing DMA read data transfers from the floppy drive to the guest system. A privileged guest user could use this flaw to crash the QEMU process on the host resulting in DoS scenario, or potential information leakage from the host memory.
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