CVE-2015-2150

Description

Xen 3.3.x through 4.5.x and the Linux kernel through 3.19.1 do not properly restrict access to PCI command registers, which might allow local guest OS users to cause a denial of service (non-maskable interrupt and host crash) by disabling the (1) memory or (2) I/O decoding for a PCI Express device and then accessing the device, which triggers an Unsupported Request (UR) response.

References

http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=af6fc858a35b90e89ea7a7ee58e66628c55c776b

http://lists.fedoraproject.org/pipermail/package-announce/2015-April/155804.html

http://lists.fedoraproject.org/pipermail/package-announce/2015-April/155854.html

http://lists.fedoraproject.org/pipermail/package-announce/2015-April/155908.html

http://lists.fedoraproject.org/pipermail/package-announce/2015-March/152747.html

http://lists.opensuse.org/opensuse-security-announce/2015-04/msg00001.html

http://lists.opensuse.org/opensuse-security-announce/2015-09/msg00004.html

http://lists.opensuse.org/opensuse-security-announce/2015-09/msg00018.html

http://lists.opensuse.org/opensuse-security-announce/2015-09/msg00021.html

http://www.debian.org/security/2015/dsa-3237

http://www.oracle.com/technetwork/topics/security/linuxbulletinjan2016-2867209.html

http://www.securityfocus.com/bid/73014

http://www.securitytracker.com/id/1031806

http://www.securitytracker.com/id/1031902

http://www.ubuntu.com/usn/USN-2631-1

http://www.ubuntu.com/usn/USN-2632-1

http://www1.huawei.com/en/security/psirt/security-bulletins/security-advisories/hw-423503.htm

http://xenbits.xen.org/xsa/advisory-120.html

https://bugzilla.redhat.com/show_bug.cgi?id=1196266

https://github.com/torvalds/linux/commit/af6fc858a35b90e89ea7a7ee58e66628c55c776b

https://seclists.org/bugtraq/2019/Aug/18

Details

Risk Information

CVSS v2