CVE-2016-2391

LOW

Description

The ohci_bus_start function in the USB OHCI emulation support (hw/usb/hcd-ohci.c) in QEMU allows local guest OS administrators to cause a denial of service (NULL pointer dereference and QEMU process crash) via vectors related to multiple eof_timers.

References

http://git.qemu.org/?p=qemu.git;a=commit;h=fa1298c2d623522eda7b4f1f721fcb935abb7360

http://www.openwall.com/lists/oss-security/2016/02/16/2

http://www.securityfocus.com/bid/83263

http://www.ubuntu.com/usn/USN-2974-1

https://bugzilla.redhat.com/show_bug.cgi?id=1304794

https://lists.debian.org/debian-lts-announce/2018/11/msg00038.html

https://lists.gnu.org/archive/html/qemu-devel/2016-02/msg03374.html

Details

Source: MITRE

Published: 2016-06-16

Updated: 2018-12-01

Risk Information

CVSS v2.0

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

CVSS v3.0

Base Score: 5

Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:H

Impact Score: 3.6

Exploitability Score: 1.3

Severity: MEDIUM