CVE-2010-4176

Status: ModifiedMedium (4)—

plymouth-pretrigger.sh in dracut and udev, when running on Fedora 13 and 14, sets weak permissions for the /dev/systty device file, which allows remote authenticated users to read terminal data from tty0 for local users.

CVSS

Version: 2.0
Vector: AV:N/AC:L/Au:S/C:P/I:N/A:N
Base score: 4

Exploitation probability (EPSS)

Probability of exploitation in the next 30 days: 2.32%
Percentile among all scored CVEs: 83
Score date: 10/2/2026

EPSS (Exploit Prediction Scoring System, FIRST) estimates how likely a vulnerability is to be exploited in the wild within 30 days. It complements CVSS (impact) and CISA KEV (confirmed exploitation).

Affected technologies (2)

Dracut Project — Dracut Udev Project — Udev

CWEs

CWE-276

References

Raw JSON (NVD)

Show

{
  "id": "CVE-2010-4176",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 4,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:L/Au:S/C:P/I:N/A:N",
          "authentication": "SINGLE",
          "integrityImpact": "NONE",
          "accessComplexity": "LOW",
          "availabilityImpact": "NONE",
          "confidentialityImpact": "PARTIAL"
        },
        "acInsufInfo": false,
        "impactScore": 2.9,
        "baseSeverity": "MEDIUM",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 8,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ]
  },
  "affected": [
    {
      "source": "secalert@redhat.com",
      "affectedData": [
        {
          "vendor": "n/a",
          "product": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ]
    }
  ],
  "published": "2010-12-07T22:00:02.577",
  "references": [
    {
      "url": "http://lists.fedoraproject.org/pipermail/package-announce/2010-December/051755.html",
      "tags": [
        "Mailing List",
        "Third Party Advisory"
      ],
      "source": "secalert@redhat.com"
    },
    {
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      "tags": [
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      ],
      "source": "secalert@redhat.com"
    },
    {
      "url": "http://secunia.com/advisories/42342",
      "tags": [
        "Not Applicable"
      ],
      "source": "secalert@redhat.com"
    },
    {
      "url": "http://secunia.com/advisories/42451",
      "tags": [
        "Not Applicable"
      ],
      "source": "secalert@redhat.com"
    },
    {
      "url": "http://www.securityfocus.com/bid/45046",
      "tags": [
        "Third Party Advisory",
        "VDB Entry"
      ],
      "source": "secalert@redhat.com"
    },
    {
      "url": "http://www.vupen.com/english/advisories/2010/3062",
      "tags": [
        "Permissions Required"
      ],
      "source": "secalert@redhat.com"
    },
    {
      "url": "http://www.vupen.com/english/advisories/2010/3110",
      "tags": [
        "Permissions Required"
      ],
      "source": "secalert@redhat.com"
    },
    {
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=654489",
      "tags": [
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        "Third Party Advisory"
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      "source": "secalert@redhat.com"
    },
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      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=654935",
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      "source": "secalert@redhat.com"
    },
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      "tags": [
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    },
    {
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      "tags": [
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      "tags": [
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    },
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      "tags": [
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      "tags": [
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.vupen.com/english/advisories/2010/3062",
      "tags": [
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
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    {
      "url": "http://www.vupen.com/english/advisories/2010/3110",
      "tags": [
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
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        "Third Party Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
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        "Issue Tracking",
        "Third Party Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-276"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "plymouth-pretrigger.sh in dracut and udev, when running on Fedora 13 and 14, sets weak permissions for the /dev/systty device file, which allows remote authenticated users to read terminal data from tty0 for local users."
    },
    {
      "lang": "es",
      "value": "El archivo plymouth-pretrigger.sh en dracut y udev, cuando es ejecutado en Fedora versión 13 y 14, establece permisos débiles para el archivo de dispositivo /dev/systty, que permite a los usuarios autenticados remotos leer datos terminal de tty0 para usuarios locales."
    }
  ],
  "lastModified": "2026-06-16T23:24:17.703",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
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              "criteria": "cpe:2.3:a:dracut_project:dracut:-:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "FAEBF33C-78E7-46B6-8066-F01779AECA4D"
            },
            {
              "criteria": "cpe:2.3:a:udev_project:udev:-:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "A409AD3E-4241-489A-8606-68C2EE5DB3B9"
            }
          ],
          "operator": "OR"
        },
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            },
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      "operator": "AND"
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  ],
  "sourceIdentifier": "secalert@redhat.com"
}