CVE-2014-0979

Description

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.

2.1

CVSS

Severity: Low

CVSS 2.0 •

EPSS 0.08%

Vendor Advisory fedoraproject.org Vendor Advisory fedoraproject.org Vendor Advisory opensuse.org Vendor Advisory secunia.com Vendor Advisory secunia.com

Affected: n/a n/a

References

Link	Tags
http://www.securityfocus.com/bid/64679	vdb entry
http://lists.fedoraproject.org/pipermail/package-announce/2014-February/128150.html	vendor advisory
https://bugzilla.novell.com/show_bug.cgi?id=857303
http://www.openwall.com/lists/oss-security/2014/01/07/15	mailing list
http://lists.fedoraproject.org/pipermail/package-announce/2014-February/128117.html	vendor advisory
http://lists.opensuse.org/opensuse-updates/2014-01/msg00048.html	vendor advisory
http://secunia.com/advisories/56211	third party advisory vendor advisory
https://bugs.launchpad.net/lightdm-gtk-greeter/+bug/1266449
http://secunia.com/advisories/56423	third party advisory vendor advisory

Frequently Asked Questions

What is the severity of CVE-2014-0979?: CVE-2014-0979 has been scored as a low severity vulnerability.
How to fix CVE-2014-0979?: To fix CVE-2014-0979, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2014-0979 being actively exploited in the wild?: As for now, there are no information to confirm that CVE-2014-0979 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.

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