Vulnerability CVE-2014-7300
Published: 2014-12-25   Modified: 2014-12-26

Description:
GNOME Shell 3.14.x before 3.14.1, when the Screen Lock feature is used, does not limit the aggregate memory consumption of all active PrtSc requests, which allows physically proximate attackers to execute arbitrary commands on an unattended workstation by making many PrtSc requests and leveraging a temporary lock outage, and the resulting temporary shell availability, caused by the Linux kernel OOM killer.

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

CVSS Base Score
Impact Subscore
Exploitability Subscore
7.2/10
10/10
3.9/10
Exploit range
Attack complexity
Authentication
Local
Low
No required
Confidentiality impact
Integrity impact
Availability impact
Complete
Complete
Complete
Affected software
Redhat -> Enterprise linux desktop 
Redhat -> Enterprise linux hpc node 
Redhat -> Enterprise linux server 
Redhat -> Enterprise linux workstation 
Gnome -> Gnome-shell 

 References:
http://openwall.com/lists/oss-security/2014/09/29/17
http://rhn.redhat.com/errata/RHSA-2015-0535.html
https://bugzilla.gnome.org/show_bug.cgi?id=737456
https://git.gnome.org/browse/gnome-shell/commit/?id=a72dca361080ffc9f45ff90188a7cf013c3c4013
https://git.gnome.org/browse/gnome-shell/commit/?id=f02b007337e61436aaa0e81a86ad707b6d277378
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