CVE-2016-2391

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.

Category

5.0
CVSS
Severity: Medium
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.10%
Vendor Advisory ubuntu.com
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
http://www.securityfocus.com/bid/83263 vdb entry third party advisory
http://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=fa1298c2d623522eda7b4f1f721fcb935abb7360
http://www.openwall.com/lists/oss-security/2016/02/16/2 third party advisory mailing list
http://www.ubuntu.com/usn/USN-2974-1 third party advisory vendor advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1304794 issue tracking third party advisory patch
https://lists.debian.org/debian-lts-announce/2018/11/msg00038.html third party advisory mailing list
https://lists.gnu.org/archive/html/qemu-devel/2016-02/msg03374.html mailing list third party advisory patch

Frequently Asked Questions

What is the severity of CVE-2016-2391?
CVE-2016-2391 has been scored as a medium severity vulnerability.
How to fix CVE-2016-2391?
To fix CVE-2016-2391, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2016-2391 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2016-2391 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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