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-2015-8551

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 hit BUG conditions and cause a denial of service (NULL pointer dereference and host OS crash) by leveraging a system with access to a passed-through MSI or MSI-X capable physical PCI device and a crafted sequence of XEN_PCI_OP_* operations, aka "Linux pciback missing sanity checks.".

MEDIUM · CVSS 6 EPSS 0.00073
Monitor
  • No active-exploitation, high-EPSS, or public-exploit signals - routine patching cadence
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-476NULL Pointer Dereference
▤

Affected Products & Versions

9
linux kernel>= 3.1 and <= 3.1.10
linux kernel>= 4.3.0 and <= 4.3.6
debian linuxall versions
opensuseall versions
suse linux enterprise desktopall versions
suse linux enterprise real time extensionall versions
suse linux enterprise serverall versions
suse linux enterprise software development kitall versions
▣

Scoring & Timeline

6
MEDIUM · CVSS v3.1 · 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:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:H
⚑

Vendor Advisories

17
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.htmlMailing ListThird Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00045.htmlMailing ListThird Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00059.htmlMailing ListThird Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2016-07/msg00005.htmlMailing ListThird Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00000.htmlMailing ListThird Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00044.htmlMailing ListThird Party Advisory
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