QEMU-KVM, as used in the Hypervisor (aka rhev-hypervisor) in Red Hat Enterprise Virtualization (RHEV) 2.2 and KVM 83, does not properly validate guest QXL driver pointers, which allows guest OS users to cause a denial of service (invalid pointer dereference and guest OS crash) or possibly gain privileges via unspecified vectors.
The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.
Link | Tags |
---|---|
https://rhn.redhat.com/errata/RHSA-2010-0627.html | patch vendor advisory |
https://bugzilla.redhat.com/show_bug.cgi?id=568809 | patch vendor advisory |
https://rhn.redhat.com/errata/RHSA-2010-0622.html | vendor advisory |