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CVE-2003-0071

Status: ModifiedLow (2.1)—

The DEC UDK processing feature in the xterm terminal emulator in XFree86 4.2.99.4 and earlier allows attackers to cause a denial of service via a certain character escape sequence that causes the terminal to enter a tight loop.

CVSS

Exploitation probability (EPSS)

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 (1)

Xfree86 Project — X11r6

CWEs

References

Raw JSON (NVD)

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{
  "id": "CVE-2003-0071",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 2.1,
          "accessVector": "LOCAL",
          "vectorString": "AV:L/AC:L/Au:N/C:N/I:N/A:P",
          "authentication": "NONE",
          "integrityImpact": "NONE",
          "accessComplexity": "LOW",
          "availabilityImpact": "PARTIAL",
          "confidentialityImpact": "NONE"
        },
        "acInsufInfo": false,
        "impactScore": 2.9,
        "baseSeverity": "LOW",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 3.9,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ]
  },
  "affected": [
    {
      "source": "cve@mitre.org",
      "affectedData": [
        {
          "vendor": "n/a",
          "product": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ]
    }
  ],
  "published": "2003-03-03T05:00:00.000",
  "references": [
    {
      "url": "http://archives.neohapsis.com/archives/vulnwatch/2003-q1/0093.html",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "cve@mitre.org"
    },
    {
      "url": "http://marc.info/?l=bugtraq&m=104612710031920&w=2",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://www.debian.org/security/2003/dsa-380",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://www.iss.net/security_center/static/11415.php",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "cve@mitre.org"
    },
    {
      "url": "http://www.redhat.com/support/errata/RHSA-2003-064.html",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://www.redhat.com/support/errata/RHSA-2003-065.html",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://www.redhat.com/support/errata/RHSA-2003-066.html",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://www.redhat.com/support/errata/RHSA-2003-067.html",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://www.securityfocus.com/bid/6950",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://archives.neohapsis.com/archives/vulnwatch/2003-q1/0093.html",
      "tags": [
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.debian.org/security/2003/dsa-380",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.iss.net/security_center/static/11415.php",
      "tags": [
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
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      "url": "http://www.redhat.com/support/errata/RHSA-2003-064.html",
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    },
    {
      "url": "http://www.redhat.com/support/errata/RHSA-2003-065.html",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.redhat.com/support/errata/RHSA-2003-066.html",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.redhat.com/support/errata/RHSA-2003-067.html",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.securityfocus.com/bid/6950",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "NVD-CWE-Other"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "The DEC UDK processing feature in the xterm terminal emulator in XFree86 4.2.99.4 and earlier allows attackers to cause a denial of service via a certain character escape sequence that causes the terminal to enter a tight loop."
    },
    {
      "lang": "es",
      "value": "La capacidad de procesamiento DEC UDK en el emulador de terminal xterm de XFree86 4.2.0 permite a atacantes causar una denegación de servicio mediante cierta secuencia de carácter de escape que hace que el terminal entre en un bucle cerrado."
    }
  ],
  "lastModified": "2026-06-16T22:01:27.637",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:xfree86_project:x11r6:4.0:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "F33E5444-E178-4F49-BDA1-DE576D8526EE"
            },
            {
              "criteria": "cpe:2.3:a:xfree86_project:x11r6:4.0.1:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "1BCC09AA-AB01-4583-8052-66DBF0E1861D"
            },
            {
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              "vulnerable": true,
              "matchCriteriaId": "43425C85-806B-4823-AD74-D0A0465FC8DF"
            },
            {
              "criteria": "cpe:2.3:a:xfree86_project:x11r6:4.1.0:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "90FA67D9-8296-4534-8354-51B830DE3499"
            },
            {
              "criteria": "cpe:2.3:a:xfree86_project:x11r6:4.2.0:*:*:*:*:*:*:*",
              "vulnerable": true,
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            },
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              "vulnerable": true,
              "matchCriteriaId": "7F9D1BD9-4300-43B5-A87B-E2BF74E55C87"
            }
          ],
          "operator": "OR"
        }
      ]
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  ],
  "sourceIdentifier": "cve@mitre.org"
}