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.

Score

CVSS 3.1 6.0 Medium

Status

Modified - secalert@redhat.com

Published

2016-12-10

Last modified

2024-08-06

Weaknesses

CWE-120

Affected products

• Leap (Opensuse)
• Qemu (Qemu)
• Openstack (Redhat)
• Virtualization (Redhat)

References

• http://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=973e7170dddefb491a48df5cba33b2ae151013a0
• http://lists.opensuse.org/opensuse-updates/2016-12/msg00140.html
• http://www.openwall.com/lists/oss-security/2016/09/16/10
• http://www.openwall.com/lists/oss-security/2016/09/16/4
• http://www.securityfocus.com/bid/92996
• https://access.redhat.com/errata/RHSA-2017:2392
• https://access.redhat.com/errata/RHSA-2017:2408
• https://lists.gnu.org/archive/html/qemu-devel/2016-09/msg03546.html
• https://security.gentoo.org/glsa/201609-01