CVE-2015-8551
MEDIUM severity · CVSS 6 · CWE-476
6CVSS MEDIUM
Summary
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."
Impact & exploitability
Attack vectorLocal
Attack complexityLow
Privileges requiredHigh
User interactionNone
Confidentiality impactNone
Integrity impactNone
Availability impactHigh
Exploit probability (EPSS)0%
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:H
Affected products we track (1)
Recommendation
Apply the vendor fix in your normal patch cycle. Open any affected product above for its exact safe version.
Additional information
- NVD record
- http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00094.htmlAdvisory
- http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00045.htmlAdvisory
- http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00059.htmlAdvisory
- http://lists.opensuse.org/opensuse-security-announce/2016-07/msg00005.htmlAdvisory
- http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00000.htmlAdvisory
- http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00044.htmlAdvisory
- http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00055.htmlAdvisory
- http://www.debian.org/security/2016/dsa-3434Advisory