Vulnerability in Lightdm Gtk\+ Greeter Project
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.
Published · last modified .
CVSS v2 metric
CVSS v2 base score 2.1 (Low). Vector: AV:L/AC:L/Au:N/C:N/I:N/A:P. This CVE predates CVSS v3 and has no v3 score from NVD.
EPSS exploit prediction
EPSS: 0.004 (32.7th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 33rd percentile — 32.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: 0.000
Affected products
- Lightdm Gtk\+ Greeter Project — versions 1.1.1, 1.1.2, 1.1.3
- openSUSE — versions 12.2, 12.3, 13.1
References
- www.securityfocus.com/bid/64679 (vdb-entry)
- lists.fedoraproject.org/pipermail/package-announce/2014-February/128150.html (vendor-advisory)
- bugzilla.novell.com/show_bug.cgi
- www.openwall.com/lists/oss-security/2014/01/07/15 (mailing-list)
- lists.fedoraproject.org/pipermail/package-announce/2014-February/128117.html (vendor-advisory)
- lists.opensuse.org/opensuse-updates/2014-01/msg00048.html (vendor-advisory)
- secunia.com/advisories/56211 (Vendor Advisory, third-party-advisory)
- bugs.launchpad.net/lightdm-gtk-greeter/+bug/1266449
- secunia.com/advisories/56423 (Vendor Advisory, third-party-advisory)