EUVD-2015-4128

Malware in sbrugna...

MGASA-2015-0310 Updated qemu package fixes security vulnerability

Matt Tait discovered that QEMU incorrectly handled the virtual PCNET driver. A malicious guest could use this issue to cause a denial of service, or possibly execute arbitrary code on the host as the user running the QEMU process CVE-2015-3209. Kurt Seifried discovered that QEMU incorrectly handl...

FreeBSD : xen-tools -- Potential unintended writes to host MSI message data field via qemu (af38cfec-27e7-11e5-a4a5-002590263bf5)

The Xen Project reports : Logic is in place to avoid writes to certain host config space fields when the guest must nevertheless be able to access their virtual counterparts. A bug in how this logic deals with accesses spanning multiple fields allows the guest to write to the host MSI message dat...

Debian DSA-3284-1 : qemu - security update

Several vulnerabilities were discovered in qemu, a fast processor emulator. - CVE-2015-3209 Matt Tait of Google's Project Zero security team discovered a flaw in the way QEMU's AMD PCnet Ethernet emulation handles multi-TMD packets with a length above 4096 bytes. A privileged guest user in a gues...

Citrix XenServer Multiple Security Updates (CTX201145)

A number of security vulnerabilities have been identified in Citrix XenServer that may allow a malicious administrator of a guest VM to crash the host. These vulnerabilities affect all currently supported versions of Citrix XenServer up to and including Citrix XenServer 6.5 Service Pack 1...

CVE-2015-4103

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...

xen-tools -- Potential unintended writes to host MSI message data field via qemu

The Xen Project reports: Logic is in place to avoid writes to certain host config space fields when the guest must nevertheless be able to access their virtual counterparts. A bug in how this logic deals with accesses spanning multiple fields allows the guest to write to the host MSI message data...