Description
The XEN_DOMCTL_memory_mapping hypercall in Xen 3.2.x through 4.5.x, when using a PCI passthrough device, is not preemptible, which allows local x86 HVM domain users to cause a denial of service (host CPU consumption) via a crafted request to the device model (qemu-dm).
References (9)
Core 9
Core References
Third Party Advisory, VDB Entry vdb-entry
x_refsource_sectrack
http://www.securitytracker.com/id/1031994
Third Party Advisory vendor-advisory
x_refsource_gentoo
https://security.gentoo.org/glsa/201504-04
Mailing List, Third Party Advisory vendor-advisory
x_refsource_fedora
http://lists.fedoraproject.org/pipermail/package-announce/2015-April/155198.html
Mailing List vendor-advisory
x_refsource_suse
http://lists.opensuse.org/opensuse-security-announce/2015-05/msg00018.html
Third Party Advisory, VDB Entry vdb-entry
x_refsource_bid
http://www.securityfocus.com/bid/73448
Third Party Advisory vendor-advisory
x_refsource_fedora
http://lists.fedoraproject.org/pipermail/package-announce/2015-April/154574.html
Patch, Vendor Advisory x_refsource_confirm
http://xenbits.xen.org/xsa/advisory-125.html
Mailing List vendor-advisory
x_refsource_suse
http://lists.opensuse.org/opensuse-security-announce/2015-04/msg00014.html
Third Party Advisory vendor-advisory
x_refsource_fedora
http://lists.fedoraproject.org/pipermail/package-announce/2015-April/154579.html
Scores
EPSS
0.0012
EPSS Percentile
30.7%
Details
CWE
CWE-20
Status
published
Products (8)
fedoraproject/fedora
20
fedoraproject/fedora
21
xen/xen
4.3.0
xen/xen
4.3.1
xen/xen
4.3.2
xen/xen
4.4.0
xen/xen
4.4.1
xen/xen
4.5.0
Published
Apr 01, 2015
Tracked Since
Feb 18, 2026