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CVE-2014-0979

CVE-2014-0979

EPSS 0.4%
The start_authentication function in lightdm-gtk-greeter.c in LightDM GTK+ Greeter before 1.7.1 does not properly handle the return value from the lightdm_greeter_get_authentication_user function, which allows local users to cause a denial of service (NULL pointer dereference) via an empty username.
Productos afectados
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Referencias
http://lists.fedoraproject.org/pipermail/package-announce/2014-February/128117.htmlhttp://lists.fedoraproject.org/pipermail/package-announce/2014-February/128150.htmlhttp://lists.opensuse.org/opensuse-updates/2014-01/msg00048.htmlhttps://bugs.launchpad.net/lightdm-gtk-greeter/+bug/1266449https://bugzilla.novell.com/show_bug.cgi?id=857303http://secunia.com/advisories/56211http://secunia.com/advisories/56423http://www.openwall.com/lists/oss-security/2014/01/07/15http://www.securityfocus.com/bid/64679