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Vulnerability Details : CVE-2016-7422

The virtqueue_map_desc function in hw/virtio/virtio.c in QEMU (aka Quick Emulator) allows local guest OS administrators to cause a denial of service (NULL pointer dereference and QEMU process crash) via a large I/O descriptor buffer length value.
Publish Date : 2016-12-10 Last Update Date : 2021-08-04
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- CVSS Scores & Vulnerability Types

CVSS Score
2.1
Confidentiality Impact None (There is no impact to the confidentiality of the system.)
Integrity Impact None (There is no impact to the integrity of the system)
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 Service
CWE ID 120

- Products Affected By CVE-2016-7422

# Product Type Vendor Product Version Update Edition Language
1 OS Opensuse Leap 42.2 * * * Version Details Vulnerabilities
2 Application Qemu Qemu * * * * Version Details Vulnerabilities
3 Application Redhat Openstack 6.0 * * * Version Details Vulnerabilities
4 Application Redhat Openstack 7.0 * * * Version Details Vulnerabilities
5 Application Redhat Openstack 8 * * * Version Details Vulnerabilities
6 Application Redhat Openstack 9 * * * Version Details Vulnerabilities
7 Application Redhat Openstack 10 * * * Version Details Vulnerabilities
8 Application Redhat Openstack 11 * * * Version Details Vulnerabilities

- Number Of Affected Versions By Product

Vendor Product Vulnerable Versions
Opensuse Leap 1
Qemu Qemu 1
Redhat Openstack 6

- References For CVE-2016-7422

http://git.qemu.org/?p=qemu.git;a=commit;h=973e7170dddefb491a48df5cba33b2ae151013a0 CONFIRM
https://access.redhat.com/errata/RHSA-2017:2392
REDHAT RHSA-2017:2392
http://www.openwall.com/lists/oss-security/2016/09/16/10
MLIST [oss-security] 20160916 Re: CVE request Qemu: virtio: null pointer dereference in virtqueu_map_desc
https://security.gentoo.org/glsa/201609-01
GENTOO GLSA-201609-01
http://lists.opensuse.org/opensuse-updates/2016-12/msg00140.html
SUSE openSUSE-SU-2016:3237
http://www.openwall.com/lists/oss-security/2016/09/16/4
MLIST [oss-security] 20160916 CVE request Qemu: virtio: null pointer dereference in virtqueu_map_desc
http://www.securityfocus.com/bid/92996
BID 92996 QEMU CVE-2016-7422 Null Pointer Dereference Denial of Service Vulnerability Release Date:2016-10-03
https://access.redhat.com/errata/RHSA-2017:2408
REDHAT RHSA-2017:2408
https://lists.gnu.org/archive/html/qemu-devel/2016-09/msg03546.html
MLIST [qemu-devel] 20160915 [PATCH] virtio: add check for descriptor's mapped address

- Vulnerability Conditions

Vulnerability is valid if product versions listed below are used 0
Vulnerability is valid if product versions listed below are used 0
Vulnerability is valid if product versions listed below are used 0
Vulnerability is valid if product versions listed below are used 0

- Metasploit Modules Related To CVE-2016-7422

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


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