slackcoder/qemu - QEMU is a generic and open source machine & userspace emulator and virtualizer

Age	Commit message (Collapse)	Author
2014-04-01	parallels: Sanity check for s->tracks (CVE-2014-0142)	Kevin Wolf
	This avoids a possible division by zero. Convert s->tracks to unsigned as well because it feels better than surviving just because the results of calculations with s->tracks are converted to unsigned anyway. Signed-off-by: Kevin Wolf <kwolf@redhat.com> Reviewed-by: Max Reitz <mreitz@redhat.com> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2014-04-01	parallels: Fix catalog size integer overflow (CVE-2014-0143)	Kevin Wolf
	The first test case would cause a huge memory allocation, leading to a qemu abort; the second one to a too small malloc() for the catalog (smaller than s->catalog_size), which causes a read-only out-of-bounds array access and on big endian hosts an endianess conversion for an undefined memory area. The sample image used here is not an original Parallels image. It was created using an hexeditor on the basis of the struct that qemu uses. Good enough for trying to crash the driver, but not for ensuring compatibility. Signed-off-by: Kevin Wolf <kwolf@redhat.com> Reviewed-by: Max Reitz <mreitz@redhat.com> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>