Description
Xen 3.3.x through 4.5.x and the Linux kernel through 3.19.1 do not properly restrict access to PCI command registers, which might allow local guest OS 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.
References (21)
Core 21
Core References
Vendor Advisory vendor-advisory
x_refsource_ubuntu
http://www.ubuntu.com/usn/USN-2631-1
Various Sources x_refsource_confirm
http://www1.huawei.com/en/security/psirt/security-bulletins/security-advisories/hw-423503.htm
Patch x_refsource_confirm
https://github.com/torvalds/linux/commit/af6fc858a35b90e89ea7a7ee58e66628c55c776b
Mailing List vendor-advisory
x_refsource_suse
http://lists.opensuse.org/opensuse-security-announce/2015-04/msg00001.html
Vendor Advisory vendor-advisory
x_refsource_ubuntu
http://www.ubuntu.com/usn/USN-2632-1
Mailing List, Third Party Advisory vendor-advisory
x_refsource_fedora
http://lists.fedoraproject.org/pipermail/package-announce/2015-April/155908.html
Mailing List, Third Party Advisory vendor-advisory
x_refsource_fedora
http://lists.fedoraproject.org/pipermail/package-announce/2015-April/155804.html
Vendor Advisory x_refsource_confirm
http://www.oracle.com/technetwork/topics/security/linuxbulletinjan2016-2867209.html
Mailing List vendor-advisory
x_refsource_suse
http://lists.opensuse.org/opensuse-security-announce/2015-09/msg00021.html
Third Party Advisory vendor-advisory
x_refsource_debian
http://www.debian.org/security/2015/dsa-3237
Mailing List, Third Party Advisory vendor-advisory
x_refsource_fedora
http://lists.fedoraproject.org/pipermail/package-announce/2015-April/155854.html
Issue Tracking x_refsource_confirm
https://bugzilla.redhat.com/show_bug.cgi?id=1196266
Vendor Advisory x_refsource_confirm
http://xenbits.xen.org/xsa/advisory-120.html
Mailing List vendor-advisory
x_refsource_suse
http://lists.opensuse.org/opensuse-security-announce/2015-09/msg00004.html
Third Party Advisory, VDB Entry vdb-entry
x_refsource_sectrack
http://www.securitytracker.com/id/1031902
Mailing List, Third Party Advisory vendor-advisory
x_refsource_fedora
http://lists.fedoraproject.org/pipermail/package-announce/2015-March/152747.html
Patch x_refsource_confirm
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=af6fc858a35b90e89ea7a7ee58e66628c55c776b
Third Party Advisory, VDB Entry vdb-entry
x_refsource_bid
http://www.securityfocus.com/bid/73014
Mailing List vendor-advisory
x_refsource_suse
http://lists.opensuse.org/opensuse-security-announce/2015-09/msg00018.html
Third Party Advisory, VDB Entry vdb-entry
x_refsource_sectrack
http://www.securitytracker.com/id/1031806
Mailing List mailing-list
x_refsource_bugtraq
https://seclists.org/bugtraq/2019/Aug/18
Scores
EPSS
0.0011
EPSS Percentile
28.8%
Details
CWE
CWE-264
Status
published
Products (31)
linux/linux_kernel
< 3.19.1
ubuntu/ubuntu
12.04
xen/xen
3.3.0
xen/xen
3.3.1
xen/xen
3.3.2
xen/xen
3.4.0
xen/xen
3.4.1
xen/xen
3.4.2
xen/xen
3.4.3
xen/xen
3.4.4
... and 21 more
Published
Mar 12, 2015
Tracked Since
Feb 18, 2026