6.1

CVE-2021-3507

Exploit

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.

Data is provided by the National Vulnerability Database (NVD)
Qemu ≫ Qemu Version <= 6.0.0
Debian ≫ Debian Linux Version10.0
Redhat ≫ Enterprise Linux Version8.0 SwEdition-
Redhat ≫ Enterprise Linux Version8.0 SwEditionadvanced_virtualization
Zu dieser CVE wurde keine CISA KEV oder CERT.AT-Warnung gefunden.
EPSS Metriken
Type Source Score Percentile
EPSS FIRST.org 0.02% 0.031
CVSS Metriken
Source Base Score Exploit Score Impact Score Vector string
nvd@nist.gov 6.1 1.8 4.2
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:L
nvd@nist.gov 3.6 3.9 4.9
AV:L/AC:L/Au:N/C:P/I:N/A:P
CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer

The product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary. This may result in read or write operations on unexpected memory locations that could be linked to other variables, data structures, or internal program data.

CWE-787 Out-of-bounds Write

The product writes data past the end, or before the beginning, of the intended buffer.

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