CVE-2015-8551

Severity

47%

Complexity

34%

Confidentiality

115%

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."

CWE-476: NULL Pointer Dereference

CVSS 3.0 Base Score 5.3. CVSS Attack Vector: local. CVSS Attack Complexity: high. CVSS Vector: (CVSS:3.0/AV:L/AC:H/PR:H/UI:N/S:C/C:N/I:N/A:H).

CVSS 2.0 Base Score 4.7. CVSS Attack Vector: local. CVSS Attack Complexity: medium. CVSS Vector: (AV:L/AC:M/Au:N/C:N/I:N/A:C).

Overview

First reported 8 years ago

2016-04-13 15:59:00

Last updated 7 years ago

2017-11-04 01:29:00

Affected Software

Canonical Ubuntu Linux 12.04 LTS

12.04

Debian GNU/Linux 6.0

6.0

References

SUSE-SU-2016:0911

SUSE-SU-2016:1102

SUSE-SU-2016:2105

openSUSE-SU-2016:2184

DSA-3434

79546

Third Party Advisory, VDB Entry

1034480

Third Party Advisory, VDB Entry

http://xenbits.xen.org/xsa/advisory-157.html

Vendor Advisory

GLSA-201604-03

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