LOW
The is_rndis function in the USB Net device emulator (hw/usb/dev-network.c) in QEMU before 2.5.1 does not properly validate USB configuration descriptor objects, which allows local guest OS administrators to cause a denial of service (NULL pointer dereference and QEMU process crash) via vectors involving a remote NDIS control message packet.
http://git.qemu.org/?p=qemu.git;a=commit;h=80eecda8e5d09c442c24307f340840a5b70ea3b9
http://lists.nongnu.org/archive/html/qemu-stable/2016-03/msg00064.html
http://www.openwall.com/lists/oss-security/2016/02/16/7
http://www.securityfocus.com/bid/83274
http://www.ubuntu.com/usn/USN-2974-1
https://bugzilla.redhat.com/show_bug.cgi?id=1302299
https://lists.debian.org/debian-lts-announce/2018/11/msg00038.html
https://lists.gnu.org/archive/html/qemu-devel/2016-02/msg02553.html
Source: MITRE
Published: 2016-06-16
Updated: 2018-12-01
Type: NVD-CWE-Other
Base Score: 2.1
Vector: AV:L/AC:L/Au:N/C:N/I:N/A:P
Impact Score: 2.9
Exploitability Score: 3.9
Severity: LOW
Base Score: 6.5
Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H
Impact Score: 4
Exploitability Score: 2
Severity: MEDIUM