Home/CVE/The PCI backend driver in Xen, when running on an x86 system and using Linux 3.1.x through 4.3.x as the driver domain, a
CVE

CVE-2015-8552

The PCI backend driver in Xen, when running on an x86 system and using Linux 3.1.x through 4.3.x as the driver domain, a

The PCI backend driver in Xen, when running on an x86 system and using Linux 3.1.x through 4.3.x as the driver domain, allows local guest administrators to generate a continuous stream of WARN messages and cause a denial of service (disk consumption) by leveraging a system with access to a passed-through MSI or MSI-X capable physical PCI device and XEN_PCI_OP_enable_msi operations, aka "Linux pciback missing sanity checks.".

MEDIUM · CVSS 4.4 EPSS 0.0019
Monitor
  • No active-exploitation, high-EPSS, or public-exploit signals - routine patching cadence
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-20Improper Input Validation
▤

Affected Products & Versions

5
xenall versions
canonical ubuntu linuxall versions
debian linuxall versions
novell suse linux enterprise debuginfoall versions
novell suse linux enterprise real time extensionall versions
▣

Scoring & Timeline

4.4
MEDIUM · CVSS v3.0 · cve@mitre.org
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD13 Apr 2016 · 03:59 PM
CVSS VectorCVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
⚑

Vendor Advisories

16
suse-csafSUSE-SU-2016:2105-1
suse-csafSUSE-SU-2016:1937-1
suse-csafSUSE-SU-2016:1764-1
suse-csafSUSE-SU-2016:1707-1
suse-csafSUSE-SU-2016:1203-1
🔗

References & Sources

12
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00094.html
http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00045.html
http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00059.htmlThird Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2016-07/msg00005.htmlThird Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00000.htmlThird Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00044.html
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