CVE-2015-2752

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).

• CWE-20

• http://lists.fedoraproject.org/pipermail/package-announce/2015-April/154574.htmlThird Party Advisory
• http://lists.fedoraproject.org/pipermail/package-announce/2015-April/154579.htmlThird Party Advisory
• http://lists.fedoraproject.org/pipermail/package-announce/2015-April/155198.html
• http://lists.opensuse.org/opensuse-security-announce/2015-04/msg00014.html
• http://lists.opensuse.org/opensuse-security-announce/2015-05/msg00018.html
• http://www.securityfocus.com/bid/73448
• http://www.securitytracker.com/id/1031994Third Party Advisory, VDB Entry
• http://xenbits.xen.org/xsa/advisory-125.htmlPatch, Vendor Advisory
• https://security.gentoo.org/glsa/201504-04
• http://lists.fedoraproject.org/pipermail/package-announce/2015-April/154574.htmlThird Party Advisory
• http://lists.fedoraproject.org/pipermail/package-announce/2015-April/154579.htmlThird Party Advisory
• http://lists.fedoraproject.org/pipermail/package-announce/2015-April/155198.html
• http://lists.opensuse.org/opensuse-security-announce/2015-04/msg00014.html
• http://lists.opensuse.org/opensuse-security-announce/2015-05/msg00018.html
• http://www.securityfocus.com/bid/73448
• http://www.securitytracker.com/id/1031994Third Party Advisory, VDB Entry
• http://xenbits.xen.org/xsa/advisory-125.htmlPatch, Vendor Advisory
• https://security.gentoo.org/glsa/201504-04

Published

Apr 1, 2015

Last Modified

Jun 17, 2026

Status

Modified

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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