medium6.1
CVE-2021-3507
A heap buffer overflow was found in the floppy disk emulator of QEMU up to 6.0.0 (including).
Impact
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.
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Qemu | Qemu | through 6.0.0 |
| Debian | Debian Linux | Version 10.0 |
| Redhat | Enterprise Linux | Version 8.0 |
Weakness classification
References
- NVD record
- CVE.org record
- https://bugzilla.redhat.com/show_bug.cgi?id=1951118
- https://lists.debian.org/debian-lts-announce/2022/09/msg00008.html
- https://security.netapp.com/advisory/ntap-20210528-0005/
- https://bugzilla.redhat.com/show_bug.cgi?id=1951118
- https://lists.debian.org/debian-lts-announce/2022/09/msg00008.html
- https://security.netapp.com/advisory/ntap-20210528-0005/