CVE-2021-3507

2021-05-0600:00:00

ubuntu.com

6.1 Medium

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

NONE

Availability Impact

LOW

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

3.6 Low

CVSS2

Access Vector

LOCAL

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

NONE

Availability Impact

PARTIAL

AV:L/AC:L/Au:N/C:P/I:N/A:P

0.001 Low

EPSS

Percentile

27.9%

JSON

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.

Bugs

OSVersionArchitecturePackageVersionFilename
ubuntu18.04noarchqemu< 1:2.11+dfsg-1ubuntu7.40UNKNOWN
ubuntu20.04noarchqemu< 1:4.2-3ubuntu6.23UNKNOWN
ubuntu21.10noarchqemu< 1:6.0+dfsg-2expubuntu1.3UNKNOWN
ubuntu22.04noarchqemu< 1:6.2+dfsg-2ubuntu6.2UNKNOWN
ubuntu22.10noarchqemu< 1:6.2+dfsg-2ubuntu8UNKNOWN
ubuntu23.04noarchqemu< 1:6.2+dfsg-2ubuntu8UNKNOWN
ubuntu23.10noarchqemu< 1:6.2+dfsg-2ubuntu8UNKNOWN
ubuntu14.04noarchqemu< anyUNKNOWN
ubuntu16.04noarchqemu< anyUNKNOWN

OS	Version	Architecture	Package	Version	Filename
ubuntu	18.04	noarch	qemu	< 1:2.11+dfsg-1ubuntu7.40	UNKNOWN
ubuntu	20.04	noarch	qemu	< 1:4.2-3ubuntu6.23	UNKNOWN
ubuntu	21.10	noarch	qemu	< 1:6.0+dfsg-2expubuntu1.3	UNKNOWN
ubuntu	22.04	noarch	qemu	< 1:6.2+dfsg-2ubuntu6.2	UNKNOWN
ubuntu	22.10	noarch	qemu	< 1:6.2+dfsg-2ubuntu8	UNKNOWN
ubuntu	23.04	noarch	qemu	< 1:6.2+dfsg-2ubuntu8	UNKNOWN
ubuntu	23.10	noarch	qemu	< 1:6.2+dfsg-2ubuntu8	UNKNOWN
ubuntu	14.04	noarch	qemu	< any	UNKNOWN
ubuntu	16.04	noarch	qemu	< any	UNKNOWN