CVE-2021-3507

Name
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.
NVD Severity
medium
Other trackers
Mailing lists
Exploits
Forges
GitHub (code, issues), Aports (code, issues)

References

Type URI
MISC https://bugzilla.redhat.com/show_bug.cgi?id=1951118
Third Party Advisory https://security.netapp.com/advisory/ntap-20210528-0005/

Match rules

CPE URI Source package Min version Max version
cpe:2.3:a:qemu:qemu:*:*:*:*:*:*:*:* qemu >= None <= 6.0.0

Vulnerable and fixed packages

Source package Branch Version Maintainer Status
qemu 3.13-community 5.2.0-r3 Natanael Copa <ncopa@alpinelinux.org> possibly vulnerable
qemu 3.10-main 4.0.1-r0 Natanael Copa <ncopa@alpinelinux.org> possibly vulnerable
qemu edge-community 6.0.0-r4 Natanael Copa <ncopa@alpinelinux.org> possibly vulnerable
qemu 3.14-community 6.0.0-r4 Natanael Copa <ncopa@alpinelinux.org> possibly vulnerable