{"id":"MGASA-2014-0026","summary":"Updated lightdm-gtk-greeter fixes CVE-2014-0979","details":"Updated lightdm-gtk-greeter package fixes security vulnerability:\n\nlightdm-gtk-greeter uses the lightdm-gobject API incorrectly and does not\nhandle lightdm_greeter_get_authentication_user() returning NULL when the\nusername of the previous authentication is invalid resulting in a NULL pointer\ndereference in start_authentication(). This constitutes a local denial of\nservice which can be triggered by any unprivileged attacker requiring the\nintervention of an administrator to restart lightdm (CVE-2014-0979).\n","modified":"2026-04-16T06:23:52.250893338Z","published":"2014-01-24T21:01:31Z","upstream":["CVE-2014-0979"],"references":[{"type":"ADVISORY","url":"https://advisories.mageia.org/MGASA-2014-0026.html"},{"type":"WEB","url":"http://openwall.com/lists/oss-security/2014/01/07/5"},{"type":"WEB","url":"http://lists.opensuse.org/opensuse-updates/2014-01/msg00048.html"},{"type":"REPORT","url":"https://bugs.mageia.org/show_bug.cgi?id=12238"}],"affected":[{"package":{"name":"lightdm-gtk-greeter","ecosystem":"Mageia:3","purl":"pkg:rpm/mageia/lightdm-gtk-greeter?arch=source&distro=mageia-3"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.3.1-6.1.mga3"}]}],"ecosystem_specific":{"section":"core"},"database_specific":{"source":"https://advisories.mageia.org/MGASA-2014-0026.json"}}],"schema_version":"1.7.5","credits":[{"name":"Mageia","contact":["https://wiki.mageia.org/en/Packages_Security_Team"],"type":"COORDINATOR"}]}