SB2014042905 - Permissions, Privileges, and Access Controls in gnome-shell

Description

This security bulletin contains information about 1 vulnerability.

1) Permissions, Privileges, and Access Controls (CVE-ID: CVE-2013-7221)

CWE-ID: CWE-264 - Permissions, Privileges, and Access Controls

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:U/U:Green

The vulnerability allows a remote non-authenticated attacker to read and manipulate data.

The automatic screen lock functionality in GNOME Shell (aka gnome-shell) before 3.10 does not prevent access to the "Enter a Command" dialog, which allows physically proximate attackers to execute arbitrary commands by leveraging an unattended workstation.

Remediation

Install update from vendor's website.

References

• http://www.openwall.com/lists/oss-security/2013/12/27/4
• http://www.openwall.com/lists/oss-security/2013/12/27/8
• https://bugzilla.gnome.org/show_bug.cgi?id=708313
• https://git.gnome.org/browse/gnome-shell/commit/js/ui/main.js?id=efdf1ff755943fba1f8a9aaeff77daa3ed338088