CVE-2016-5126

Published: Jun 1, 2016Modified: May 6, 2026

7.8

Vector

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

Exploitability: 1.8 / Impact: 5.9

Source: NVD

Description

Heap-based buffer overflow in the iscsi_aio_ioctl function in block/iscsi.c in QEMU allows local guest OS users to cause a denial of service (QEMU process crash) or possibly execute arbitrary code via a crafted iSCSI asynchronous I/O ioctl call.

Affected (30)

Products: Qemu: Qemu · Canonical: Ubuntu Linux · Oracle: Linux · +2 more

Show all products

Qemu: Qemu · Canonical: Ubuntu Linux · Oracle: Linux · Debian: Debian Linux · Redhat: Enterprise Linux Desktop, Enterprise Linux Eus, Enterprise Linux Server, Enterprise Linux Server Aus, Enterprise Linux Server Tus, Enterprise Linux Workstation, Openstack, Virtualization

1 product

1 product

1 product

1 product

8 products

Enterprise Linux Desktop

Enterprise Linux Eus

Enterprise Linux Server

Enterprise Linux Server Aus

Enterprise Linux Server Tus

Enterprise Linux Workstation

Openstack

Virtualization

Configuration A

1 vulnerable

Vulnerable Software	Affected Versions
Qemu Qemu	Up to 2.6.2

Configuration B

3 vulnerable

Vulnerable Software	Affected Versions
Canonical Ubuntu Linux	Version 12.04
Canonical Ubuntu Linux	Version 14.04
Canonical Ubuntu Linux	Version 16.04

Configuration C

1 vulnerable

Vulnerable Software	Affected Versions
Oracle Linux	Version 7

Configuration D

1 vulnerable

Vulnerable Software	Affected Versions
Debian Debian Linux	Version 8.0

Configuration E

22 vulnerable

Vulnerable Software	Affected Versions
Redhat Enterprise Linux Desktop	Version 7.0
Redhat Enterprise Linux Eus	Version 7.2
Redhat Enterprise Linux Eus	Version 7.3
Redhat Enterprise Linux Eus	Version 7.4
Redhat Enterprise Linux Eus	Version 7.5
Redhat Enterprise Linux Eus	Version 7.6
Redhat Enterprise Linux Eus	Version 7.7
Redhat Enterprise Linux Server	Version 7.0
Redhat Enterprise Linux Server Aus	Version 7.2
Redhat Enterprise Linux Server Aus	Version 7.3
Redhat Enterprise Linux Server Aus	Version 7.4
Redhat Enterprise Linux Server Aus	Version 7.6
Redhat Enterprise Linux Server Aus	Version 7.7
Redhat Enterprise Linux Server Tus	Version 7.2
Redhat Enterprise Linux Server Tus	Version 7.3
Redhat Enterprise Linux Server Tus	Version 7.6
Redhat Enterprise Linux Server Tus	Version 7.7
Redhat Enterprise Linux Workstation	Version 7.0
Redhat Openstack	Version 6.0
Redhat Openstack	Version 7.0
Redhat Openstack	Version 8
Redhat Openstack	Version 9

Configuration F

2 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Redhat Openstack	Version 5.0
Redhat Virtualization	Version 3.0

Running on/with	Platform Versions
Redhat Enterprise Linux	Version 7.0

Related CWEs

CWE-787

Out-of-bounds Write

The product writes data past the end, or before the beginning, of the intended buffer.

References (36)

http://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=a6b3167fa0e825aebb5a7cd8b437b6d41584a196

Source: secalert@redhat.com

http://rhn.redhat.com/errata/RHSA-2016-1606.html

Source: secalert@redhat.com

Third Party Advisory

http://rhn.redhat.com/errata/RHSA-2016-1607.html

Source: secalert@redhat.com

Third Party Advisory

http://rhn.redhat.com/errata/RHSA-2016-1653.html

Source: secalert@redhat.com

Third Party Advisory

http://rhn.redhat.com/errata/RHSA-2016-1654.html

Source: secalert@redhat.com

Third Party Advisory

http://rhn.redhat.com/errata/RHSA-2016-1655.html

Source: secalert@redhat.com

Third Party Advisory

http://rhn.redhat.com/errata/RHSA-2016-1756.html

Source: secalert@redhat.com

Third Party Advisory

http://rhn.redhat.com/errata/RHSA-2016-1763.html

Source: secalert@redhat.com

Third Party Advisory

http://www.openwall.com/lists/oss-security/2016/05/30/6

Source: secalert@redhat.com

Mailing ListThird Party Advisory

http://www.openwall.com/lists/oss-security/2016/05/30/7

Source: secalert@redhat.com

Mailing ListThird Party Advisory

http://www.oracle.com/technetwork/topics/security/linuxbulletinjul2016-3090544.html

Source: secalert@redhat.com

Third Party Advisory

http://www.securityfocus.com/bid/90948

Source: secalert@redhat.com

Third Party AdvisoryVDB Entry

http://www.ubuntu.com/usn/USN-3047-1

Source: secalert@redhat.com

Third Party Advisory

http://www.ubuntu.com/usn/USN-3047-2

Source: secalert@redhat.com

Third Party Advisory

https://bugzilla.redhat.com/show_bug.cgi?id=1340924

Source: secalert@redhat.com

Issue TrackingThird Party Advisory

https://lists.debian.org/debian-lts-announce/2019/09/msg00021.html

Source: secalert@redhat.com

Mailing ListThird Party Advisory

https://lists.gnu.org/archive/html/qemu-block/2016-05/msg00779.html

Source: secalert@redhat.com

Mailing ListPatchThird Party Advisory

https://security.gentoo.org/glsa/201609-01

Source: secalert@redhat.com

Third Party Advisory

http://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=a6b3167fa0e825aebb5a7cd8b437b6d41584a196