CVE-2015-6855

HIGH

Qemu < 2.4.1 - Divide By Zero

Title source: rule

Description

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.

References (16)

[Third Party Advisory] http://lists.fedoraproject.org/pipermail/package-announce/2015-October/168602.html

[Third Party Advisory] http://lists.fedoraproject.org/pipermail/package-announce/2015-October/169036.html

[Third Party Advisory] http://lists.fedoraproject.org/pipermail/package-announce/2015-October/169039.html

[Third Party Advisory] http://lists.fedoraproject.org/pipermail/package-announce/2015-October/169327.html

[Third Party Advisory] http://lists.fedoraproject.org/pipermail/package-announce/2015-October/169341.html

[Third Party Advisory] http://lists.fedoraproject.org/pipermail/package-announce/2015-September/167369.html

[Mailing List, Third Party Advisory] http://lists.opensuse.org/opensuse-security-announce/2015-10/msg00019.html

[Third Party Advisory] http://www.debian.org/security/2015/dsa-3361

[Third Party Advisory] http://www.debian.org/security/2015/dsa-3362

[Mailing List, Third Party Advisory] http://www.openwall.com/lists/oss-security/2015/09/10/1

[Mailing List, Third Party Advisory] http://www.openwall.com/lists/oss-security/2015/09/10/2

[Third Party Advisory, VDB Entry] http://www.securityfocus.com/bid/76691

[Third Party Advisory] http://www.ubuntu.com/usn/USN-2745-1

[Mailing List, Third Party Advisory] https://lists.gnu.org/archive/html/qemu-devel/2015-09/msg02479.html

[Third Party Advisory] https://security.gentoo.org/glsa/201602-01

[Third Party Advisory] https://www.arista.com/en/support/advisories-notices/security-advisories/1188-security-advisory-14

Scores

CVSS v3 7.5

EPSS 0.0577

EPSS Percentile 90.3%

Attack Vector NETWORK

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

Classification

CWE

CWE-369

Status draft

Affected Products (13)

qemu/qemu < 2.4.1

debian/debian_linux

debian/debian_linux

debian/debian_linux

fedoraproject/fedora

fedoraproject/fedora

fedoraproject/fedora

suse/linux_enterprise_desktop

suse/linux_enterprise_server

canonical/ubuntu_linux

canonical/ubuntu_linux

canonical/ubuntu_linux

arista/eos

Timeline

Published Nov 06, 2015

Tracked Since Feb 18, 2026