CVE-2014-7300

Severity: high (CVSS 7.2 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.5% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2014-12-25 · updated 2026-06-17
Weakness: CWE-399

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.

Affected products

gnome-shell: 3.14.0
RedHat Enterprise Linux Desktop: 7.0
RedHat Enterprise Linux Hpc Node: 7.0
RedHat Enterprise Linux Server: 7.0
RedHat Enterprise Linux Workstation: 7.0

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
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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