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CVE-2015-2756
Published: Apr 1, 2015
Modified: Aug 6, 2024
PUBLISHED
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.
| Vendor | Product | Versions |
|---|---|---|
n/a | n/a | affected n/a |
References
72577
vdb-entry
x_refsource_BID
GLSA-201504-04
vendor-advisory
x_refsource_GENTOO
https://support.citrix.com/article/CTX206006
x_refsource_CONFIRM
DSA-3259
vendor-advisory
x_refsource_DEBIAN
FEDORA-2015-5295
vendor-advisory
x_refsource_FEDORA
FEDORA-2015-5208
vendor-advisory
x_refsource_FEDORA
http://support.citrix.com/article/CTX201145
x_refsource_CONFIRM
[Qemu-devel] 20150331 [PATCH][XSA-126] xen: limit guest control of PCI command register
mailing-list
x_refsource_MLIST
http://xenbits.xen.org/xsa/advisory-126.html
x_refsource_CONFIRM
openSUSE-SU-2015:0732
vendor-advisory
x_refsource_SUSE
USN-2608-1
vendor-advisory
x_refsource_UBUNTU
1031998
vdb-entry
x_refsource_SECTRACK
FEDORA-2015-5402
vendor-advisory
x_refsource_FEDORA
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