Local User Access Bypass in Debian and Ubuntu Linux X.Org
CVE-2011-4613

Currently unrated

Key Information:

Vendor: Canonical
Status: Ubuntu Linux; Debian Linux; Linux; X Server
Vendor: CVE Published:; 5 February 2014

What is CVE-2011-4613?

The X.Org X wrapper in Debian GNU/Linux and Ubuntu Linux fails to adequately authenticate the TTY of users attempting to initiate an X session. This oversight allows a local user to manipulate stdin to link it with a file perceived as the console TTY, thereby bypassing security measures designed to maintain access control. This vulnerability poses a significant risk in environments where local user integrity is paramount, enabling unauthorized access and potential system compromise.

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