Some vulnerabilities have been reported in QEMU, which can be exploited by malicious, local users to bypass certain security restrictions.

The vulnerabilities are caused due to the "drive_init()" function in vl.c and "do_change_block()" function in monitor.c determining the format of a disk from data contained in the disk's header. This can be exploited by a malicious user in a guest system to e.g. read arbitrary files on the host by writing a fake header to a raw formatted disk image.

The vulnerabilities are reported in version 0.9.1. Other versions may also be affected.

Solution
Fixed in the SVN repository.
Further details available to Secunia VIM customers

Provided and/or discovered by
The vendor credits Avi Kivity. Additional information provided by Mandriva.

Changelog
Further details available to Secunia VIM customers

Original Advisory
http://lists.gnu.org/archive/html/qemu-devel/2008-04/msg00675.html

Deep Links
Links available to Secunia VIM customers