CVE-2015-2756
QEMU Xen PCI Command Register Access Vulnerability
Description
QEMU, as used in Xen 3.3.x through 4.5.x, does not properly restrict access to PCI command registers, which might allow local HVM guest users to cause a denial of service (non-maskable interrupt and host crash) by disabling the (1) memory or (2) I/O decoding for a PCI Express device and then accessing the device, which triggers an Unsupported Request (UR) response.
INFO
Published Date :
April 1, 2015, 2:59 p.m.
Last Modified :
Oct. 30, 2018, 4:26 p.m.
Source :
[email protected]
Remotely Exploitable :
No
Impact Score :
6.9
Exploitability Score :
3.9
Public PoC/Exploit Available at Github
CVE-2015-2756 has a 1 public PoC/Exploit available at Github.
Go to the Public Exploits tab to see the list.
Affected Products
The following products are affected by CVE-2015-2756
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2015-2756.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
None
Ruby Shell HTML
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2015-2756 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2015-2756 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
CPE Deprecation Remap by [email protected]
Oct. 30, 2018
Action Type Old Value New Value Changed CPE Configuration OR *cpe:2.3:o:xen:xen:4.4.0:-:*:*:*:*:*:* OR *cpe:2.3:o:xen:xen:4.4.0:*:*:*:*:*:*:* -
CVE Modified by [email protected]
Nov. 15, 2017
Action Type Old Value New Value Added Reference https://support.citrix.com/article/CTX206006 [No Types Assigned] -
CVE Modified by [email protected]
Jan. 03, 2017
Action Type Old Value New Value Added Reference http://www.securityfocus.com/bid/72577 [No Types Assigned] Added Reference http://lists.opensuse.org/opensuse-security-announce/2015-04/msg00014.html [No Types Assigned] Added Reference http://lists.fedoraproject.org/pipermail/package-announce/2015-April/155198.html [No Types Assigned] -
CVE Modified by [email protected]
Dec. 22, 2016
Action Type Old Value New Value Added Reference https://security.gentoo.org/glsa/201504-04 [No Types Assigned] Added Reference http://support.citrix.com/article/CTX201145 [No Types Assigned] -
Modified Analysis by [email protected]
Jun. 02, 2016
Action Type Old Value New Value Changed CPE Configuration Configuration 1 OR *cpe:2.3:o:xen:xen:4.3.0:*:*:*:*:*:*:* *cpe:2.3:o:xen:xen:4.3.1:*:*:*:*:*:*:* *cpe:2.3:o:xen:xen:4.3.2:*:*:*:*:*:*:* *cpe:2.3:o:xen:xen:4.4.0:-:*:*:*:*:*:* *cpe:2.3:o:xen:xen:4.5.0:*:*:*:*:*:*:* *cpe:2.3:o:xen:xen:4.4.1:-:*:*:*:*:*:* Configuration 1 OR *cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:* *cpe:2.3:o:debian:debian_linux:7.0:*:*:*:*:*:*:* Configuration 2 OR *cpe:2.3:o:xen:xen:4.3.0:*:*:*:*:*:*:* *cpe:2.3:o:xen:xen:4.3.1:*:*:*:*:*:*:* *cpe:2.3:o:xen:xen:4.3.2:*:*:*:*:*:*:* *cpe:2.3:o:xen:xen:4.4.0:-:*:*:*:*:*:* *cpe:2.3:o:xen:xen:4.5.0:*:*:*:*:*:*:* *cpe:2.3:o:xen:xen:4.4.1:-:*:*:*:*:*:* Configuration 3 OR *cpe:2.3:o:fedoraproject:fedora:21:*:*:*:*:*:*:* *cpe:2.3:o:fedoraproject:fedora:20:*:*:*:*:*:*:* Configuration 4 OR *cpe:2.3:o:canonical:ubuntu_linux:15.04:*:*:*:*:*:*:* *cpe:2.3:o:canonical:ubuntu_linux:14.10:*:*:*:*:*:*:* *cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:* *cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:lts:*:*:* -
CVE Modified by [email protected]
Jan. 14, 2016
Action Type Old Value New Value Added Reference http://www.debian.org/security/2015/dsa-3259 Added Reference http://www.ubuntu.com/usn/USN-2608-1 -
CVE Modified by [email protected]
Apr. 18, 2015
Action Type Old Value New Value Added Reference http://lists.fedoraproject.org/pipermail/package-announce/2015-April/154579.html Added Reference http://lists.fedoraproject.org/pipermail/package-announce/2015-April/154574.html -
CVE Modified by [email protected]
Apr. 07, 2015
Action Type Old Value New Value Added Reference http://www.securitytracker.com/id/1031998 -
Modified Analysis by [email protected]
Apr. 02, 2015
Action Type Old Value New Value Added CPE Configuration Configuration 1 OR *cpe:2.3:o:xen:xen:4.3.0:*:*:*:*:*:*:* *cpe:2.3:o:xen:xen:4.3.1:*:*:*:*:*:*:* *cpe:2.3:o:xen:xen:4.3.2:*:*:*:*:*:*:* *cpe:2.3:o:xen:xen:4.4.0:-:*:*:*:*:*:* *cpe:2.3:o:xen:xen:4.5.0:*:*:*:*:*:*:* *cpe:2.3:o:xen:xen:4.4.1:-:*:*:*:*:*:* Added CVSS V2 (AV:L/AC:L/Au:N/C:N/I:N/A:C) Changed Reference Type http://xenbits.xen.org/xsa/advisory-126.html No Types Assigned http://xenbits.xen.org/xsa/advisory-126.html Advisory Added CWE CWE-264 -
Initial Analysis by [email protected]
Apr. 02, 2015
Action Type Old Value New Value
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2015-2756 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2015-2756
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.06 }} 0.00%
score
0.26165
percentile