CVE-2021-3507

Description

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.

References

https://bugzilla.redhat.com/show_bug.cgi?id=1951118

https://security.netapp.com/advisory/ntap-20210528-0005/

https://lists.debian.org/debian-lts-announce/2022/09/msg00008.html

Details

Risk Information

CVSS v2

CVSS v3