xen xen 4.2.3 vulnerabilities and exploits

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The xlu_vif_parse_rate function in the libxlu library in Xen 4.2.x and 4.3.x allows local users to cause a denial of service (NULL pointer dereference) by using the "@" character as the VIF rate configuration.

Xen Xen 4.2.0 Xen Xen 4.2.1 Xen Xen 4.2.2 Xen Xen 4.2.3 Xen Xen 4.3.0

Use-after-free vulnerability in the libxl_list_cpupool function in the libxl toolstack library in Xen 4.2.x and 4.3.x, when running "under memory pressure," returns the original pointer when the realloc function fails, which allows local users to cause a denial of servi...

Xen Xen 4.2.0 Xen Xen 4.2.1 Xen Xen 4.2.2 Xen Xen 4.2.3 Xen Xen 4.3.0

The ocaml binding for the xc_vcpu_getaffinity function in Xen 4.2.x and 4.3.x frees certain memory that may still be intended for use, which allows local users to cause a denial of service (heap corruption and crash) and possibly execute arbitrary code via unspecified vectors tha...

Xen Xen 4.2.0 Xen Xen 4.2.1 Xen Xen 4.2.2 Xen Xen 4.2.3 Xen Xen 4.3.0

Off-by-one error in the flask_security_avc_cachestats function in xsm/flask/flask_op.c in Xen 4.2.x and 4.3.x, when the maximum number of physical CPUs are in use, allows local users to cause a denial of service (host crash) or obtain sensitive information from hypervisor memory ...

Xen Xen 4.2.0 Xen Xen 4.2.1 Xen Xen 4.2.2 Xen Xen 4.2.3 Xen Xen 4.3.0 Xen Xen 4.3.1

The IRQ setup in Xen 4.2.x and 4.3.x, when using device passthrough and configured to support a large number of CPUs, frees certain memory that may still be intended for use, which allows local guest administrators to cause a denial of service (memory corruption and hypervisor cr...

Xen Xen 4.2.0 Xen Xen 4.2.1 Xen Xen 4.2.2 Xen Xen 4.2.3 Xen Xen 4.3.0 Xen Xen 4.3.1

The do_physdev_op function in Xen 4.1.5, 4.1.6.1, 4.2.2 up to and including 4.2.3, and 4.3.x does not properly restrict access to the (1) PHYSDEVOP_prepare_msix and (2) PHYSDEVOP_release_msix operations, which allows local PV guests to cause a denial of service (host or guest mal...

Xen Xen 4.1.5 Xen Xen 4.1.6.1 Xen Xen 4.2.2 Xen Xen 4.2.3 Xen Xen 4.3.0 Xen Xen 4.3.1

Xen 4.2.x and 4.3.x, when nested virtualization is disabled, does not properly check the emulation paths for (1) VMLAUNCH and (2) VMRESUME, which allows local HVM guest users to cause a denial of service (host crash) via unspecified vectors related to "guest VMX instruction ...

Xen Xen 4.2.0 Xen Xen 4.2.1 Xen Xen 4.2.2 Xen Xen 4.2.3 Xen Xen 4.3.0 Xen Xen 4.3.1

Xen 4.2.x and 4.3.x, when using Intel VT-d and a PCI device has been assigned, does not clear the flag that suppresses IOMMU TLB flushes when unspecified errors occur, which causes the TLB entries to not be flushed and allows local guest administrators to cause a denial of servic...

Xen Xen 4.2.0 Xen Xen 4.2.1 Xen Xen 4.2.2 Xen Xen 4.2.3 Xen Xen 4.3.0 Xen Xen 4.3.1

Xen 4.2.x and 4.3.x, when using Intel VT-d for PCI passthrough, does not properly flush the TLB after clearing a present translation table entry, which allows local guest administrators to cause a denial of service or gain privileges via unspecified vectors related to an "in...

Xen Xen 4.2.1 Xen Xen 4.2.2 Xen Xen 4.2.3 Xen Xen 4.3.0 Xen Xen 4.3.1 Opensuse Opensuse 13.1

The qdisk PV disk backend in qemu-xen in Xen 4.2.x and 4.3.x prior to 4.3.1, and qemu 1.1 and other versions, allows local HVM guests to cause a denial of service (domain grant reference consumption) via unspecified vectors.

Qemu Qemu 1.1 Xen Xen 4.2.0 Xen Xen 4.2.1 Xen Xen 4.2.2 Xen Xen 4.2.3 Xen Xen 4.3.0

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