CVE-2015-8552
Vulnerability Summary
Timeline
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 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."
CVSS Metrics
- v3.0•MEDIUM•Score: 4.4CVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
- v2.0•LOW•Score: 1.7AV:L/AC:L/Au:S/C:N/I:N/A:P
EPSS Trends
Current EPSS score: 0.19%• Percentile: 41%
Techniques & Countermeasures
- CWE-20•Improper Input Validation
The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.
Affected Systems
- canonical•ubuntu_linux
12.04
- debian•debian_linux
6.0
- novell•suse_linux_enterprise_debuginfo
11:sp4
- novell•suse_linux_enterprise_real_time_extension
11:sp4 | 12:sp1
- xen•xen
3.1.3 | 3.1.4 | 3.2.0 | 3.2.1 | 3.2.2 | 3.2.3 | 3.3.0 | 3.3.1 | 3.3.2 | 3.4.0 | 3.4.1 | 3.4.2 | 3.4.3 | 3.4.4 | 4.0.0 | 4.0.1 | 4.0.2 | 4.0.3 | 4.0.4 | 4.1.0 | 4.1.1 | 4.1.2 | 4.1.3 | 4.1.4 | 4.1.5 | 4.1.6 | 4.1.6.1 | 4.2.0 | 4.2.1 | 4.2.2 | 4.2.3 | 4.2.4 | 4.2.5 | 4.3.0 | 4.3.1 | 4.3.2 | 4.3.3 | 4.3.4
References (12)
- 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