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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…
- 2.1LowCVSS base score
- 0.41%Exploitation in 30 daysEPSS · top 64% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
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.
Timeline
ID reserved
By mitre
- 16 days later
· 16 days later
Published
- 11 years later
· 11 years later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 2.0 | Low2.1 | AV:L/AC:L/Au:N/C:N/I:N/A:P |
- EPSS (exploitation in 30 days)
- 0.41% · top 64% of all CVEs (10 Nov 2026)
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: Low 2.1.
Affected products
n/a
- affected n/a
References
9
- 64679 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
- FEDORA-2014-1648 (opens in a new tab)vendor-advisoryx_refsource_FEDORAx_transferred
- https://bugzilla.novell.com/show_bug.cgi?id=857303 (opens in a new tab)x_refsource_CONFIRMx_transferred
- [oss-security] 20140107 Re: CVE request: lightdm-gtk-greeter - local DOS due to NULL pointer dereference (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- FEDORA-2014-1647 (opens in a new tab)vendor-advisoryx_refsource_FEDORAx_transferred
- openSUSE-SU-2014:0071 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
- 56211 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- https://bugs.launchpad.net/lightdm-gtk-greeter/+bug/1266449 (opens in a new tab)x_refsource_CONFIRMx_transferred
- 56423 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2014-1009 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2014-0979)Record last updated .