Vulnerability CVE-2012-4425
Published: 2012-09-18

Description:
libgio, when used in setuid or other privileged programs in spice-gtk and possibly other products, allows local users to gain privileges and execute arbitrary code via the DBUS_SYSTEM_BUS_ADDRESS environment variable. NOTE: it could be argued that this is a vulnerability in the applications that do not cleanse environment variables, not in libgio itself.

Type:

CWE-264

 (Permissions, Privileges, and Access Controls)

CVSS2 => (AV:L/AC:M/Au:N/C:C/I:C/A:C)

CVSS Base Score
Impact Subscore
Exploitability Subscore
6.9/10
10/10
3.4/10
Exploit range
Attack complexity
Authentication
Local
Medium
No required
Confidentiality impact
Integrity impact
Availability impact
Complete
Complete
Complete
Affected software
GTK -> Libgio 
Freedesktop -> Spice-gtk 

 References:
http://permalink.gmane.org/gmane.linux.redhat.fedora.extras.cvs/853051
https://bugzilla.redhat.com/show_bug.cgi?id=857283
http://www.spinics.net/lists/spice-devel/msg01940.html
http://www.securityfocus.com/bid/55555
http://www.openwall.com/lists/oss-security/2012/09/17/2
http://www.openwall.com/lists/oss-security/2012/09/14/2
http://www.openwall.com/lists/oss-security/2012/09/12/6
http://www.exploit-db.com/exploits/21323
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