Qemu: qcow2: NULL dereference in qcow2_open() error path

The qcow2open function in the block/qcow2.c in QEMU before 1.7.2 and 2.x before 2.0.0 allows local users to cause a denial of service NULL pointer dereference via a crafted image which causes an error, related to the initialization of the snapshotoffset and nbsnapshots fields...

Qemu: qcow2: NULL dereference in qcow2_open() error path

The qcow2open function in the block/qcow2.c in QEMU before 1.7.2 and 2.x before 2.0.0 allows local users to cause a denial of service NULL pointer dereference via a crafted image which causes an error, related to the initialization of the snapshotoffset and nbsnapshots fields...