Vulnerability Details CVE-2014-0979
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.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.001
EPSS Ranking 24.0%
CVSS Severity
CVSS v2 Score 2.1
References
- http://lists.fedoraproject.org/pipermail/package-announce/2014-February/128117.html
- http://lists.fedoraproject.org/pipermail/package-announce/2014-February/128150.html
- http://lists.opensuse.org/opensuse-updates/2014-01/msg00048.html
- http://secunia.com/advisories/56211
- http://secunia.com/advisories/56423
- http://www.openwall.com/lists/oss-security/2014/01/07/15
- http://www.securityfocus.com/bid/64679
- https://bugs.launchpad.net/lightdm-gtk-greeter/+bug/1266449
- https://bugzilla.novell.com/show_bug.cgi?id=857303
- http://lists.fedoraproject.org/pipermail/package-announce/2014-February/128117.html
- http://lists.fedoraproject.org/pipermail/package-announce/2014-February/128150.html
- http://lists.opensuse.org/opensuse-updates/2014-01/msg00048.html
- http://secunia.com/advisories/56211
- http://secunia.com/advisories/56423
- http://www.openwall.com/lists/oss-security/2014/01/07/15
- http://www.securityfocus.com/bid/64679
- https://bugs.launchpad.net/lightdm-gtk-greeter/+bug/1266449
- https://bugzilla.novell.com/show_bug.cgi?id=857303
Products affected by CVE-2014-0979
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cpe:2.3:a:lightdm_gtk+_greeter_project:lightdm_gtk+_greeter:1.1.1
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cpe:2.3:a:lightdm_gtk+_greeter_project:lightdm_gtk+_greeter:1.1.2
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cpe:2.3:a:lightdm_gtk+_greeter_project:lightdm_gtk+_greeter:1.1.3
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cpe:2.3:a:lightdm_gtk+_greeter_project:lightdm_gtk+_greeter:1.1.4
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cpe:2.3:a:lightdm_gtk+_greeter_project:lightdm_gtk+_greeter:1.1.5
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cpe:2.3:a:lightdm_gtk+_greeter_project:lightdm_gtk+_greeter:1.1.6
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cpe:2.3:a:lightdm_gtk+_greeter_project:lightdm_gtk+_greeter:1.3.0
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cpe:2.3:a:lightdm_gtk+_greeter_project:lightdm_gtk+_greeter:1.3.1
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cpe:2.3:a:lightdm_gtk+_greeter_project:lightdm_gtk+_greeter:1.5.0
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cpe:2.3:a:lightdm_gtk+_greeter_project:lightdm_gtk+_greeter:1.5.1
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cpe:2.3:a:lightdm_gtk+_greeter_project:lightdm_gtk+_greeter:1.5.2
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cpe:2.3:a:lightdm_gtk+_greeter_project:lightdm_gtk+_greeter:1.6.0
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cpe:2.3:a:lightdm_gtk+_greeter_project:lightdm_gtk+_greeter:1.6.1
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cpe:2.3:a:lightdm_gtk+_greeter_project:lightdm_gtk+_greeter:1.7.0
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cpe:2.3:o:opensuse:opensuse:12.2
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cpe:2.3:o:opensuse:opensuse:12.3
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cpe:2.3:o:opensuse:opensuse:13.1