QEMU does not properly restrict write access to the PCI...

Vulnerability Description

QEMU does not properly restrict write access to the PCI config space for certain PCI pass-through devices, which might allow local x86 HVM guests to gain privileges, cause a denial of service (host crash), obtain sensitive information, or possibly have other unspecified impact via unknown vectors.

References

• http://www.ubuntu.com/usn/USN-2630-1
• https://support.citrix.com/article/CTX206006
• http://www.debian.org/security/2015/dsa-3286
• http://lists.opensuse.org/opensuse-security-announce/2015-06/msg00029.html
• http://lists.fedoraproject.org/pipermail/package-announce/2015-June/160154.html
• http://www.debian.org/security/2015/dsa-3284
• http://www.securityfocus.com/bid/74949
• http://xenbits.xen.org/xsa/advisory-131.html
• http://lists.opensuse.org/opensuse-security-announce/2015-06/msg00030.html
• http://support.citrix.com/article/CTX201145
• http://lists.opensuse.org/opensuse-security-announce/2015-06/msg00007.html
• https://security.gentoo.org/glsa/201604-03
• http://www.securitytracker.com/id/1032467
• http://lists.fedoraproject.org/pipermail/package-announce/2015-June/160171.html
• http://lists.opensuse.org/opensuse-security-announce/2015-06/msg00004.html
• http://lists.fedoraproject.org/pipermail/package-announce/2015-June/160685.html