Vulnerability-Lookup

ubuntu-cve-2014-0979

Vulnerability from osv_ubuntu

Published

2014-01-23 01:55

Modified

2025-07-16 04:50

Summary

Details

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.

Severity

N/A (UNKNOWN)


                    
                      medium

References

URL

Type

	https://ubuntu.com/security/CVE-2014-0979	REPORT
	https://bugs.launchpad.net/lightdm-gtk-greeter/+b…	REPORT
	https://bugzilla.novell.com/show_bug.cgi?id=857303	REPORT
	https://www.cve.org/CVERecord?id=CVE-2014-0979	REPORT

JSON

To clipboard

{
  "affected": [
    {
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "lightdm-gtk-greeter",
            "binary_version": "1.8.4-0ubuntu1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:14.04:LTS",
        "name": "lightdm-gtk-greeter",
        "purl": "pkg:deb/ubuntu/lightdm-gtk-greeter@1.8.4-0ubuntu1?arch=source\u0026distro=trusty"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.8.4-0ubuntu1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.6.1-0ubuntu1",
        "1.6.1-0ubuntu2",
        "1.6.1-0ubuntu3",
        "1.8.1-1ubuntu1",
        "1.8.1-1ubuntu2",
        "1.8.2-1ubuntu1",
        "1.8.3-0ubuntu1"
      ]
    }
  ],
  "aliases": [],
  "details": "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.",
  "id": "UBUNTU-CVE-2014-0979",
  "modified": "2025-07-16T04:50:26Z",
  "published": "2014-01-23T01:55:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2014-0979"
    },
    {
      "type": "REPORT",
      "url": "https://bugs.launchpad.net/lightdm-gtk-greeter/+bug/1266449"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.novell.com/show_bug.cgi?id=857303"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2014-0979"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "medium",
      "type": "Ubuntu"
    }
  ],
  "upstream": [
    "CVE-2014-0979"
  ],
  "withdrawn": "2025-07-18T16:42:59Z"
}

CVE-2014-0979 (GCVE-0-2014-0979)

Vulnerability from cvelistv5 – Published: 2014-01-23 01:00 – Updated: 2024-08-06 09:34

Summary

Severity

No CVSS data available.

CWE

Assigner

mitre

References

9 references

URL	Tags
http://www.securityfocus.com/bid/64679	vdb-entryx_refsource_BID
http://lists.fedoraproject.org/pipermail/package-…	vendor-advisoryx_refsource_FEDORA
https://bugzilla.novell.com/show_bug.cgi?id=857303	x_refsource_CONFIRM
http://www.openwall.com/lists/oss-security/2014/0…	mailing-listx_refsource_MLIST
http://lists.fedoraproject.org/pipermail/package-…	vendor-advisoryx_refsource_FEDORA
http://lists.opensuse.org/opensuse-updates/2014-0…	vendor-advisoryx_refsource_SUSE
http://secunia.com/advisories/56211	third-party-advisoryx_refsource_SECUNIA
https://bugs.launchpad.net/lightdm-gtk-greeter/+b…	x_refsource_CONFIRM
http://secunia.com/advisories/56423	third-party-advisoryx_refsource_SECUNIA

Date Public

2014-01-06 00:00

Show details on NVD website

JSON

To clipboard

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            "url": "https://bugzilla.novell.com/show_bug.cgi?id=857303"
          },
          {
            "name": "[oss-security] 20140107 Re: CVE request: lightdm-gtk-greeter - local DOS due to NULL pointer dereference",
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            "x_refsource_SECUNIA"
          ],
          "url": "http://secunia.com/advisories/56423"
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        },
        "affects": {
          "vendor": {
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              {
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                      "version": {
                        "version_data": [
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}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

Action not permitted

ubuntu-cve-2014-0979

Vulnerability from osv_ubuntu

CVE-2014-0979 (GCVE-0-2014-0979)

Tags

Sightings

Nomenclature