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Secunia Network Software Inspector 2.0 (NSI) - Public Beta

The Public Beta has ended. Thanks to all that participated.

Learn more:
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TITLE:
QEMU "drive_init()" Disk Format Security Bypass

SECUNIA ADVISORY ID:
SA30111

VERIFY ADVISORY:
http://secunia.com/advisories/30111/

CRITICAL:
Less critical

IMPACT:
Security Bypass

WHERE:
Local system

SOFTWARE:
QEMU 0.x
http://secunia.com/product/14104/

DESCRIPTION:
A vulnerability has been reported in QEMU, which can be exploited by
malicious, local users to bypass certain security restrictions.

The vulnerability is caused due to the "drive_init()" function in
vl.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 vulnerability is reported in version 0.9.1. Other versions may
also be affected.

SOLUTION:
Fixed in the SVN repository.
http://svn.savannah.gnu.org/viewvc/?view=rev&root=qemu&revision=4277

PROVIDED AND/OR DISCOVERED BY:
The vendor credits Avi Kivity.

ORIGINAL ADVISORY:
http://lists.gnu.org/archive/html/qemu-devel/2008-04/msg00675.html

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About:
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