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Vulnerability Details : CVE-2016-5126

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.
Publish Date : 2016-06-01 Last Update Date : 2017-06-30
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- CVSS Scores & Vulnerability Types

CVSS Score
4.6
Confidentiality Impact Partial (There is considerable informational disclosure.)
Integrity Impact Partial (Modification of some system files or information is possible, but the attacker does not have control over what can be modified, or the scope of what the attacker can affect is limited.)
Availability Impact Partial (There is reduced performance or interruptions in resource availability.)
Access Complexity Low (Specialized access conditions or extenuating circumstances do not exist. Very little knowledge or skill is required to exploit. )
Authentication Not required (Authentication is not required to exploit the vulnerability.)
Gained Access None
Vulnerability Type(s) Denial Of ServiceExecute CodeOverflow
CWE ID 119

- Related OVAL Definitions

Title Definition Id Class Family
RHSA-2016:1606: qemu-kvm security update (Moderate) oval:com.redhat.rhsa:def:20161606 unix
OVAL (Open Vulnerability and Assessment Language) definitions define exactly what should be done to verify a vulnerability or a missing patch. Check out the OVAL definitions if you want to learn what you should do to verify a vulnerability.

- Products Affected By CVE-2016-5126

# Product Type Vendor Product Version Update Edition Language
1 OS Canonical Ubuntu Linux 12.04 ~~lts~~~ Version Details Vulnerabilities
2 OS Canonical Ubuntu Linux 14.04 ~~lts~~~ Version Details Vulnerabilities
3 OS Canonical Ubuntu Linux 16.04 ~~lts~~~ Version Details Vulnerabilities
4 OS Oracle Linux 7.0 Version Details Vulnerabilities
5 Application Qemu Qemu - Version Details Vulnerabilities

- Number Of Affected Versions By Product

Vendor Product Vulnerable Versions
Canonical Ubuntu Linux 3
Oracle Linux 1
Qemu Qemu 1

- References For CVE-2016-5126

http://www.ubuntu.com/usn/USN-3047-1
UBUNTU USN-3047-1
https://security.gentoo.org/glsa/201609-01
GENTOO GLSA-201609-01
http://www.ubuntu.com/usn/USN-3047-2
UBUNTU USN-3047-2
https://lists.gnu.org/archive/html/qemu-block/2016-05/msg00779.html
MLIST [qemu-block] 20160524 [Qemu-block] [PATCH] block/iscsi: avoid potential overflow of acb->task->cdb
https://bugzilla.redhat.com/show_bug.cgi?id=1340924 CONFIRM
http://www.oracle.com/technetwork/topics/security/linuxbulletinjul2016-3090544.html CONFIRM
http://www.securityfocus.com/bid/90948
BID 90948 QEMU 'block/iscsi.c' Heap Based Buffer Overflow Vulnerability Release Date:2016-10-11
http://www.openwall.com/lists/oss-security/2016/05/30/7
MLIST [oss-security] 20160530 Re: CVE Request Qemu: block: iscsi: buffer overflow in iscsi_aio_ioctl
http://rhn.redhat.com/errata/RHSA-2016-1606.html
REDHAT RHSA-2016:1606
http://rhn.redhat.com/errata/RHSA-2016-1607.html
REDHAT RHSA-2016:1607
http://rhn.redhat.com/errata/RHSA-2016-1653.html
REDHAT RHSA-2016:1653
http://rhn.redhat.com/errata/RHSA-2016-1654.html
REDHAT RHSA-2016:1654
http://rhn.redhat.com/errata/RHSA-2016-1655.html
REDHAT RHSA-2016:1655
http://rhn.redhat.com/errata/RHSA-2016-1756.html
REDHAT RHSA-2016:1756
http://rhn.redhat.com/errata/RHSA-2016-1763.html
REDHAT RHSA-2016:1763
http://www.openwall.com/lists/oss-security/2016/05/30/6
MLIST [oss-security] 20160530 CVE Request Qemu: block: iscsi: buffer overflow in iscsi_aio_ioctl
http://git.qemu.org/?p=qemu.git;a=commit;h=a6b3167fa0e825aebb5a7cd8b437b6d41584a196 CONFIRM

- Metasploit Modules Related To CVE-2016-5126

There are not any metasploit modules related to this CVE entry (Please visit www.metasploit.com for more information)


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