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PRIOn knowledge basePRION:CVE-2014-0979HistoryJan 23, 2014 - 1:55 a.m.
Null pointer dereference
2014-01-2301:55:00
PRIOn knowledge base
www.prio-n.com
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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.
References
lists.opensuse.org/opensuse-updates/2014-01/msg00048.html
secunia.com/advisories/56211
secunia.com/advisories/56423
www.openwall.com/lists/oss-security/2014/01/07/15
www.securityfocus.com/bid/64679
bugs.launchpad.net/lightdm-gtk-greeter/+bug/1266449
bugzilla.novell.com/show_bug.cgi?id=857303
lists.fedoraproject.org/pipermail/package-announce/2014-February/128117.html
lists.fedoraproject.org/pipermail/package-announce/2014-February/128150.html
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