CVE Vulnerabilities

CVE-2015-6855

Divide By Zero

Published: Nov 06, 2015 | Modified: Dec 15, 2021
CVSS 3.x
7.5
HIGH
Source:
NVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS 2.x
5 MEDIUM
AV:N/AC:L/Au:N/C:N/I:N/A:P
RedHat/V2
2.3 LOW
AV:A/AC:M/Au:S/C:N/I:N/A:P
RedHat/V3
Ubuntu
LOW

hw/ide/core.c in QEMU does not properly restrict the commands accepted by an ATAPI device, which allows guest users to cause a denial of service or possibly have unspecified other impact via certain IDE commands, as demonstrated by a WIN_READ_NATIVE_MAX command to an empty drive, which triggers a divide-by-zero error and instance crash.

Weakness

The product divides a value by zero.

Affected Software

Name Vendor Start Version End Version
Qemu Qemu * 2.4.1 (including)
Qemu Ubuntu devel *
Qemu Ubuntu trusty *
Qemu Ubuntu vivid *
Qemu-kvm Ubuntu precise *

References