PT-2015-5630 · Linux+4 · Linux Kernel+4
Jan Beulich
·
Published
2015-03-12
·
Updated
2019-08-13
·
CVE-2015-2150
CVSS v2.0
4.9
Medium
| Vector | AV:L/AC:L/Au:N/C:N/I:N/A:C |
Name of the Vulnerable Software and Affected Versions
Xen versions 3.3.x through 4.5.x
Linux kernel versions prior to 3.19.1
Description
The issue is related to improper restriction of access to PCI command registers. This might allow local guest OS users to cause a denial of service, resulting in a non-maskable interrupt and host crash. The denial of service can be triggered by disabling the memory or I/O decoding for a PCI Express device and then accessing the device, which leads to an Unsupported Request (UR) response.
Recommendations
For Xen versions 3.3.x through 4.5.x, update to a version that properly restricts access to PCI command registers.
For Linux kernel versions prior to 3.19.1, update to version 3.19.1 or later to resolve the issue.
Exploit
Fix
DoS
Found an issue in the description? Have something to add? Feel free to write us 👾
Weakness Enumeration
Related Identifiers
Affected Products
Alt Linux
Linux Kernel
Suse
Ubuntu
Xen