Improper input validation in Xen
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).
Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)
Published · last modified .
CVSS v2 metric
CVSS v2 base score 4.9 (Medium). Vector: AV:L/AC:L/Au:N/C:N/I:N/A:C. This CVE predates CVSS v3 and has no v3 score from NVD.
EPSS exploit prediction
EPSS: 0.005 (36.9th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 37th percentile — 36.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.005 · newest: 0.005 · change: 0.000
Affected products
- Xen — versions 4.3.0, 4.3.1, 4.3.2
- Fedoraproject Fedora — versions 20, 21
Weakness classification (CWE)
References
- www.securitytracker.com/id/1031994 (VDB Entry, Third Party Advisory, vdb-entry)
- security.gentoo.org/glsa/201504-04 (vendor-advisory)
- lists.fedoraproject.org/pipermail/package-announce/2015-April/155198.html (vendor-advisory)
- lists.opensuse.org/opensuse-security-announce/2015-05/msg00018.html (vendor-advisory)
- www.securityfocus.com/bid/73448 (vdb-entry)
- lists.fedoraproject.org/pipermail/package-announce/2015-April/154574.html (vendor-advisory, Third Party Advisory)
- xenbits.xen.org/xsa/advisory-125.html (Patch, Vendor Advisory)
- lists.opensuse.org/opensuse-security-announce/2015-04/msg00014.html (vendor-advisory)
- lists.fedoraproject.org/pipermail/package-announce/2015-April/154579.html (vendor-advisory, Third Party Advisory)