CVE-2021-3507

 

Published at: - 06-05-2021 06:15

Last modified: - 07-10-2022 10:47

Total changes: - 6

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.

Common Vulnerability Scoring System (CVSS)

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:L

 

Verification logic

 

Reference

• https://bugzilla.redhat.com/show_bug.cgi?id=1951118
• https://security.netapp.com/advisory/ntap-20210528-0005/
• [debian-lts-announce] 20220905 [SECURITY] [DLA 3099-1] qemu security update-Mailing List, Third Party Advisory

 

Keywords

NVD

 

CVE-2021-3507

 

CVE

 

Common vulnerabilities & exposures

 

CVSS

 

Common vulnerability scoring system

 

Security

 

Vulnerabilities

 

Exposures