CVE-2016-7422

6.0 MEDIUM

Published: December 10, 2016 Modified: May 06, 2026

Description

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.

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CVSS v3.x Details

0.0 Low Medium High Critical 10.0

Vector String

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

References to Advisories, Solutions, and Tools

Patch Vendor Advisory Exploit Third Party Advisory

http://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=973e7170dddefb491a48df5cba33b2ae151013a0

Source: secalert@redhat.com

http://lists.opensuse.org/opensuse-updates/2016-12/msg00140.html

Source: secalert@redhat.com

Mailing List Third Party Advisory

http://www.openwall.com/lists/oss-security/2016/09/16/10

Source: secalert@redhat.com

Mailing List Third Party Advisory

http://www.openwall.com/lists/oss-security/2016/09/16/4

Source: secalert@redhat.com

Mailing List Third Party Advisory

http://www.securityfocus.com/bid/92996

Source: secalert@redhat.com

Third Party Advisory VDB Entry

https://access.redhat.com/errata/RHSA-2017:2392

Source: secalert@redhat.com

Third Party Advisory

https://access.redhat.com/errata/RHSA-2017:2408

Source: secalert@redhat.com

Third Party Advisory

https://lists.gnu.org/archive/html/qemu-devel/2016-09/msg03546.html

Source: secalert@redhat.com

Patch Third 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=973e7170dddefb491a48df5cba33b2ae151013a0