Vulnerability Details : CVE-2016-2391
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.
Vulnerability category: Memory CorruptionDenial of service
Products affected by CVE-2016-2391
- cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*
- cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:esm:*:*:*
- cpe:2.3:o:canonical:ubuntu_linux:15.10:*:*:*:*:*:*:*
- cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:esm:*:*:*
- cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*
- cpe:2.3:a:qemu:qemu:*:*:*:*:*:*:*:*
Threat overview for CVE-2016-2391
Top countries where our scanners detected CVE-2016-2391
Top open port discovered on systems with this issue
8200
IPs affected by CVE-2016-2391 15
Threat actors abusing to this issue?
Yes
Find out if you* are
affected by CVE-2016-2391!
*Directly or indirectly through your vendors, service providers and 3rd parties.
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Exploit prediction scoring system (EPSS) score for CVE-2016-2391
0.06%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 25 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2016-2391
Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
---|---|---|---|---|---|---|
2.1
|
LOW | AV:L/AC:L/Au:N/C:N/I:N/A:P |
3.9
|
2.9
|
NIST | |
5.0
|
MEDIUM | CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:H |
1.3
|
3.6
|
NIST |
CWE ids for CVE-2016-2391
-
The product dereferences a pointer that it expects to be valid but is NULL.Assigned by: nvd@nist.gov (Primary)
References for CVE-2016-2391
-
http://www.openwall.com/lists/oss-security/2016/02/16/2
oss-security - CVE request Qemu: usb: multiple eof_timers in ohci leads to null pointer dereferenceMailing List;Third Party Advisory
-
http://www.securityfocus.com/bid/83263
QEMU 'hw/usb/hcd-ohci.c' Null Pointer Dereference Denial of Service VulnerabilityThird Party Advisory;VDB Entry
-
http://www.ubuntu.com/usn/USN-2974-1
USN-2974-1: QEMU vulnerabilities | Ubuntu security noticesThird Party Advisory
-
http://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=fa1298c2d623522eda7b4f1f721fcb935abb7360
QEMU · GitLab
-
https://lists.debian.org/debian-lts-announce/2018/11/msg00038.html
[SECURITY] [DLA 1599-1] qemu security updateMailing List;Third Party Advisory
-
https://lists.gnu.org/archive/html/qemu-devel/2016-02/msg03374.html
[Qemu-devel] [PATCH] usb: ohci avoid multiple eof timersPatch;Third Party Advisory
-
https://bugzilla.redhat.com/show_bug.cgi?id=1304794
1304794 – (CVE-2016-2391) CVE-2016-2391 Qemu: usb: multiple eof_timers in ohci module leads to null pointer dereferenceIssue Tracking;Patch;Third Party Advisory
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