Xen 3.3.x through 4.5.x does not properly restrict write access...
Vulnerability Description
Xen 3.3.x through 4.5.x does not properly restrict write access to the host MSI message data field, which allows local x86 HVM guest administrators to cause a denial of service (host interrupt handling confusion) via vectors related to qemu and accessing spanning multiple fields.
Impact Analysis
Refer to official advisory for detailed impact metrics.
Remediation
Ensure systems are updated to the latest vendor-supplied patch levels.
Am I Vulnerable?
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Credits & Attribution
No credits recorded in the NVD database.
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.securitytracker.com/id/1032456
- 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
- http://www.securityfocus.com/bid/74947
- http://xenbits.xen.org/xsa/advisory-128.html
- https://security.gentoo.org/glsa/201604-03
- 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
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Weaknesses (CWE)
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MITRE ATT&CK TTPs
No associated TTPs found for this vulnerability.