FKIE_CVE-2006-4020

Vulnerability from fkie_nvd - Published: 2006-08-08 20:04 - Updated: 2026-04-16 00:27
Severity
Summary
scanf.c in PHP 5.1.4 and earlier, and 4.4.3 and earlier, allows context-dependent attackers to execute arbitrary code via a sscanf PHP function call that performs argument swapping, which increments an index past the end of an array and triggers a buffer over-read.
References
secalert@redhat.comftp://patches.sgi.com/support/free/security/advisories/20061001-01-P.asc
secalert@redhat.comhttp://bugs.php.net/bug.php?id=38322Exploit, Patch
secalert@redhat.comhttp://rhn.redhat.com/errata/RHSA-2006-0688.html
secalert@redhat.comhttp://rhn.redhat.com/errata/RHSA-2006-0736.html
secalert@redhat.comhttp://secunia.com/advisories/21403
secalert@redhat.comhttp://secunia.com/advisories/21467
secalert@redhat.comhttp://secunia.com/advisories/21546
secalert@redhat.comhttp://secunia.com/advisories/21608
secalert@redhat.comhttp://secunia.com/advisories/21683
secalert@redhat.comhttp://secunia.com/advisories/21768
secalert@redhat.comhttp://secunia.com/advisories/21847
secalert@redhat.comhttp://secunia.com/advisories/22004
secalert@redhat.comhttp://secunia.com/advisories/22039
secalert@redhat.comhttp://secunia.com/advisories/22069
secalert@redhat.comhttp://secunia.com/advisories/22440
secalert@redhat.comhttp://secunia.com/advisories/22487
secalert@redhat.comhttp://secunia.com/advisories/22538
secalert@redhat.comhttp://secunia.com/advisories/23247
secalert@redhat.comhttp://security.gentoo.org/glsa/glsa-200608-28.xml
secalert@redhat.comhttp://securityreason.com/securityalert/1341
secalert@redhat.comhttp://securitytracker.com/id?1016984
secalert@redhat.comhttp://support.avaya.com/elmodocs2/security/ASA-2006-221.htm
secalert@redhat.comhttp://support.avaya.com/elmodocs2/security/ASA-2006-222.htm
secalert@redhat.comhttp://support.avaya.com/elmodocs2/security/ASA-2006-223.htm
secalert@redhat.comhttp://www.mandriva.com/security/advisories?name=MDKSA-2006:144
secalert@redhat.comhttp://www.novell.com/linux/security/advisories/2006_19_sr.html
secalert@redhat.comhttp://www.novell.com/linux/security/advisories/2006_20_sr.html
secalert@redhat.comhttp://www.novell.com/linux/security/advisories/2006_22_sr.html
secalert@redhat.comhttp://www.novell.com/linux/security/advisories/2006_52_php.html
secalert@redhat.comhttp://www.php.net/ChangeLog-5.php#5.1.5
secalert@redhat.comhttp://www.php.net/release_5_1_5.php
secalert@redhat.comhttp://www.plain-text.info/sscanf_bug.txtExploit, URL Repurposed
secalert@redhat.comhttp://www.redhat.com/support/errata/RHSA-2006-0669.html
secalert@redhat.comhttp://www.redhat.com/support/errata/RHSA-2006-0682.html
secalert@redhat.comhttp://www.securityfocus.com/archive/1/442438/30/0/threadedExploit, Patch, Vendor Advisory
secalert@redhat.comhttp://www.securityfocus.com/bid/19415
secalert@redhat.comhttp://www.ubuntu.com/usn/usn-342-1
secalert@redhat.comhttp://www.vupen.com/english/advisories/2006/3193
secalert@redhat.comhttps://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11062
af854a3a-2127-422b-91ae-364da2661108ftp://patches.sgi.com/support/free/security/advisories/20061001-01-P.asc
af854a3a-2127-422b-91ae-364da2661108http://bugs.php.net/bug.php?id=38322Exploit, Patch
af854a3a-2127-422b-91ae-364da2661108http://rhn.redhat.com/errata/RHSA-2006-0688.html
af854a3a-2127-422b-91ae-364da2661108http://rhn.redhat.com/errata/RHSA-2006-0736.html
af854a3a-2127-422b-91ae-364da2661108http://secunia.com/advisories/21403
af854a3a-2127-422b-91ae-364da2661108http://secunia.com/advisories/21467
af854a3a-2127-422b-91ae-364da2661108http://secunia.com/advisories/21546
af854a3a-2127-422b-91ae-364da2661108http://secunia.com/advisories/21608
af854a3a-2127-422b-91ae-364da2661108http://secunia.com/advisories/21683
af854a3a-2127-422b-91ae-364da2661108http://secunia.com/advisories/21768
af854a3a-2127-422b-91ae-364da2661108http://secunia.com/advisories/21847
af854a3a-2127-422b-91ae-364da2661108http://secunia.com/advisories/22004
af854a3a-2127-422b-91ae-364da2661108http://secunia.com/advisories/22039
af854a3a-2127-422b-91ae-364da2661108http://secunia.com/advisories/22069
af854a3a-2127-422b-91ae-364da2661108http://secunia.com/advisories/22440
af854a3a-2127-422b-91ae-364da2661108http://secunia.com/advisories/22487
af854a3a-2127-422b-91ae-364da2661108http://secunia.com/advisories/22538
af854a3a-2127-422b-91ae-364da2661108http://secunia.com/advisories/23247
af854a3a-2127-422b-91ae-364da2661108http://security.gentoo.org/glsa/glsa-200608-28.xml
af854a3a-2127-422b-91ae-364da2661108http://securityreason.com/securityalert/1341
af854a3a-2127-422b-91ae-364da2661108http://securitytracker.com/id?1016984
af854a3a-2127-422b-91ae-364da2661108http://support.avaya.com/elmodocs2/security/ASA-2006-221.htm
af854a3a-2127-422b-91ae-364da2661108http://support.avaya.com/elmodocs2/security/ASA-2006-222.htm
af854a3a-2127-422b-91ae-364da2661108http://support.avaya.com/elmodocs2/security/ASA-2006-223.htm
af854a3a-2127-422b-91ae-364da2661108http://www.mandriva.com/security/advisories?name=MDKSA-2006:144
af854a3a-2127-422b-91ae-364da2661108http://www.novell.com/linux/security/advisories/2006_19_sr.html
af854a3a-2127-422b-91ae-364da2661108http://www.novell.com/linux/security/advisories/2006_20_sr.html
af854a3a-2127-422b-91ae-364da2661108http://www.novell.com/linux/security/advisories/2006_22_sr.html
af854a3a-2127-422b-91ae-364da2661108http://www.novell.com/linux/security/advisories/2006_52_php.html
af854a3a-2127-422b-91ae-364da2661108http://www.php.net/ChangeLog-5.php#5.1.5
af854a3a-2127-422b-91ae-364da2661108http://www.php.net/release_5_1_5.php
af854a3a-2127-422b-91ae-364da2661108http://www.plain-text.info/sscanf_bug.txtExploit, URL Repurposed
af854a3a-2127-422b-91ae-364da2661108http://www.redhat.com/support/errata/RHSA-2006-0669.html
af854a3a-2127-422b-91ae-364da2661108http://www.redhat.com/support/errata/RHSA-2006-0682.html
af854a3a-2127-422b-91ae-364da2661108http://www.securityfocus.com/archive/1/442438/30/0/threadedExploit, Patch, Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108http://www.securityfocus.com/bid/19415
af854a3a-2127-422b-91ae-364da2661108http://www.ubuntu.com/usn/usn-342-1
af854a3a-2127-422b-91ae-364da2661108http://www.vupen.com/english/advisories/2006/3193
af854a3a-2127-422b-91ae-364da2661108https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11062
Impacted products
Vendor Product Version
php php 4.0
php php 4.0
php php 4.0
php php 4.0
php php 4.0
php php 4.0
php php 4.0
php php 4.0
php php 4.0.0
php php 4.0.1
php php 4.0.1
php php 4.0.1
php php 4.0.2
php php 4.0.3
php php 4.0.3
php php 4.0.4
php php 4.0.4
php php 4.0.5
php php 4.0.6
php php 4.0.7
php php 4.0.7
php php 4.0.7
php php 4.0.7
php php 4.1.0
php php 4.1.1
php php 4.1.2
php php 4.2
php php 4.2.0
php php 4.2.1
php php 4.2.2
php php 4.2.3
php php 4.3.0
php php 4.3.1
php php 4.3.2
php php 4.3.3
php php 4.3.4
php php 4.3.5
php php 4.3.6
php php 4.3.7
php php 4.3.8
php php 4.3.9
php php 4.3.10
php php 4.3.11
php php 4.4.0
php php 4.4.1
php php 4.4.2
php php 4.4.3
php php 5.0
php php 5.0
php php 5.0
php php 5.0.0
php php 5.0.0
php php 5.0.0
php php 5.0.0
php php 5.0.0
php php 5.0.0
php php 5.0.0
php php 5.0.0
php php 5.0.1
php php 5.0.2
php php 5.0.3
php php 5.0.4
php php 5.0.5
php php 5.1.0
php php 5.1.1
php php 5.1.2
php php 5.1.4
To clipboard 

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              "criteria": "cpe:2.3:a:php:php:5.0.0:beta3:*:*:*:*:*:*",
              "matchCriteriaId": "5D6E8982-D7AE-4A52-8F7C-A4D59D2A2CA4",
              "vulnerable": true
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            {
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              "matchCriteriaId": "8FC144FA-8F84-44C0-B263-B639FEAD20FB",
              "vulnerable": true
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            {
              "criteria": "cpe:2.3:a:php:php:5.0.0:rc1:*:*:*:*:*:*",
              "matchCriteriaId": "295907B4-C3DE-4021-BE3B-A8826D4379E6",
              "vulnerable": true
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            {
              "criteria": "cpe:2.3:a:php:php:5.0.0:rc2:*:*:*:*:*:*",
              "matchCriteriaId": "DBC98F82-6E1D-4A89-8ED4-ECD9BD954EB4",
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            {
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            },
            {
              "criteria": "cpe:2.3:a:php:php:5.0.1:*:*:*:*:*:*:*",
              "matchCriteriaId": "17437AED-816A-4CCF-96DE-8C3D0CC8DB2B",
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            {
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              "matchCriteriaId": "74E7AE59-1CB0-4300-BBE0-109F909789EF",
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            },
            {
              "criteria": "cpe:2.3:a:php:php:5.0.3:*:*:*:*:*:*:*",
              "matchCriteriaId": "9222821E-370F-4616-B787-CC22C2F4E7CD",
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            {
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              "matchCriteriaId": "9809449F-9A76-4318-B233-B4C2950A6EA9",
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            },
            {
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              "matchCriteriaId": "0AA962D4-A4EC-4DC3-B8A9-D10941B92781",
              "vulnerable": true
            },
            {
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              "matchCriteriaId": "F8CDFEF9-C367-4800-8A2F-375C261FAE55",
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            {
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            {
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            {
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              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "scanf.c in PHP 5.1.4 and earlier, and 4.4.3 and earlier, allows context-dependent attackers to execute arbitrary code via a sscanf PHP function call that performs argument swapping, which increments an index past the end of an array and triggers a buffer over-read."
    },
    {
      "lang": "es",
      "value": "scanf.c en PHP 5.1.4 y anteriores, y 4.4.3 y anteriores, permite a atacantes (locales o remotos dependiendo del contexto) ejecutar c\u00f3digo de su elecci\u00f3n mediante una llamada a la funci\u00f3n sscanf de PHP que realiza un intercambio de argumentos que incrementa un \u00edndice m\u00e1s all\u00e1 del final de un array y dispara una lectura de b\u00fafer fuera de l\u00edmite."
    }
  ],
  "evaluatorSolution": "A Patch(es) addressing this vulnerability can be found here:\r\nhttp://snaps.php.net/\r\n",
  "id": "CVE-2006-4020",
  "lastModified": "2026-04-16T00:27:16.627",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": false,
        "baseSeverity": "MEDIUM",
        "cvssData": {
          "accessComplexity": "LOW",
          "accessVector": "LOCAL",
          "authentication": "NONE",
          "availabilityImpact": "PARTIAL",
          "baseScore": 4.6,
          "confidentialityImpact": "PARTIAL",
          "integrityImpact": "PARTIAL",
          "vectorString": "AV:L/AC:L/Au:N/C:P/I:P/A:P",
          "version": "2.0"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 6.4,
        "obtainAllPrivilege": false,
        "obtainOtherPrivilege": false,
        "obtainUserPrivilege": true,
        "source": "nvd@nist.gov",
        "type": "Primary",
        "userInteractionRequired": false
      }
    ]
  },
  "published": "2006-08-08T20:04:00.000",
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      "source": "secalert@redhat.com",
      "url": "ftp://patches.sgi.com/support/free/security/advisories/20061001-01-P.asc"
    },
    {
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        "Patch"
      ],
      "url": "http://bugs.php.net/bug.php?id=38322"
    },
    {
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      "url": "http://rhn.redhat.com/errata/RHSA-2006-0688.html"
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      "url": "http://rhn.redhat.com/errata/RHSA-2006-0736.html"
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      "url": "http://secunia.com/advisories/21403"
    },
    {
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      "url": "http://secunia.com/advisories/21467"
    },
    {
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      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "http://secunia.com/advisories/22487"
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  ],
  "sourceIdentifier": "secalert@redhat.com",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "NVD-CWE-Other"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}


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Tags
Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

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.