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QEMU Disk Format Security Bypass
Secunia Advisory: SA30111
Release Date: 2008-05-08
Last Update: 2008-08-15
Popularity: 4,941 views

Critical:
Less critical
Impact: Security Bypass
Where: Local system
Solution Status: Vendor Workaround

Software:QEMU 0.x

Secunia CVSS-2 Score: Available in Secunia business solutions

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Advisory Content (Page 1 of 3)[ 1 ] [ 2 ] [ 3 ]

Description:
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.

Change Page:
[ 1 ] [ 2 ] [ 3 ]



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