The PCI backend driver in Xen, when running on an...
Vulnerability Description
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 Analysis
Refer to official advisory for detailed impact metrics.
Remediation
Ensure systems are updated to the latest vendor-supplied patch levels.
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Credits & Attribution
No credits recorded in the NVD database.
References
- http://xenbits.xen.org/xsa/advisory-157.html
- http://www.securitytracker.com/id/1034480
- http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00055.html
- http://lists.opensuse.org/opensuse-security-announce/2016-07/msg00005.html
- http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00045.html
- http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00059.html
- https://security.gentoo.org/glsa/201604-03
- http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00044.html
- http://www.debian.org/security/2016/dsa-3434
- http://www.securityfocus.com/bid/79546
- http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00000.html
- http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00094.html
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CVSS Vectors
Weaknesses (CWE)
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MITRE ATT&CK TTPs
No associated TTPs found for this vulnerability.