CVE-2008-4409 (GCVE-0-2008-4409)

Vulnerability from cvelistv5 – Published: 2008-10-03 17:18 – Updated: 2024-08-07 10:17
VLAI
Summary
libxml2 2.7.0 and 2.7.1 does not properly handle "predefined entities definitions" in entities, which allows context-dependent attackers to cause a denial of service (memory consumption and application crash), as demonstrated by use of xmllint on a certain XML document, a different vulnerability than CVE-2003-1564 and CVE-2008-3281.
Severity
No CVSS data available.
CWE
  • n/a
Assigner
References
URL Tags
http://support.apple.com/kb/HT3639 x_refsource_CONFIRM
http://www.vupen.com/english/advisories/2009/1621 vdb-entryx_refsource_VUPEN
http://lists.apple.com/archives/security-announce… vendor-advisoryx_refsource_APPLE
https://www.redhat.com/archives/fedora-package-an… vendor-advisoryx_refsource_FEDORA
http://www.vupen.com/english/advisories/2009/1522 vdb-entryx_refsource_VUPEN
http://security.gentoo.org/glsa/glsa-200812-06.xml vendor-advisoryx_refsource_GENTOO
http://lists.apple.com/archives/security-announce… vendor-advisoryx_refsource_APPLE
http://openwall.com/lists/oss-security/2008/10/02/4 mailing-listx_refsource_MLIST
http://secunia.com/advisories/32130 third-party-advisoryx_refsource_SECUNIA
http://www.mandriva.com/security/advisories?name=… vendor-advisoryx_refsource_MANDRIVA
http://secunia.com/advisories/35379 third-party-advisoryx_refsource_SECUNIA
http://www.securityfocus.com/bid/31555 vdb-entryx_refsource_BID
https://www.redhat.com/archives/fedora-package-an… vendor-advisoryx_refsource_FEDORA
http://secunia.com/advisories/32974 third-party-advisoryx_refsource_SECUNIA
http://secunia.com/advisories/32175 third-party-advisoryx_refsource_SECUNIA
http://support.apple.com/kb/HT3613 x_refsource_CONFIRM
https://exchange.xforce.ibmcloud.com/vulnerabilit… vdb-entryx_refsource_XF
http://bugzilla.gnome.org/show_bug.cgi?id=554660 x_refsource_CONFIRM
Date Public
2008-10-02 00:00
Show details on NVD website
To clipboard 

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        },
        {
          "source": "af854a3a-2127-422b-91ae-364da2661108",
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        },
        {
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          "url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/45633"
        },
        {
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          "url": "https://www.redhat.com/archives/fedora-package-announce/2008-October/msg00125.html"
        },
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      "sourceIdentifier": "cve@mitre.org",
      "vendorComments": [
        {
          "comment": "Not vulnerable. This issue did not affect the versions of libxml2 as shipped with Red Hat Enterprise Linux 2.1, 3, 4, or 5.",
          "lastModified": "2017-08-07T21:32:37.420",
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          {
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            "value": "libxml2 2.7.0 and 2.7.1 does not properly handle \"predefined entities definitions\" in entities, which allows context-dependent attackers to cause a denial of service (memory consumption and application crash), as demonstrated by use of xmllint on a certain XML document, a different vulnerability than CVE-2003-1564 and CVE-2008-3281."
          },
          {
            "lang": "es",
            "value": "libxml2 v2.7.0 y v2.7.1 no maneja apropiadamente \"definiciones de entidades predefinidas\" en entidades, lo cual permite a atacantes dependientes de contexto provocar una denegaci\u00f3n de servicio (consumo de memoria y ca\u00edda de aplicaci\u00f3n), como lo demostrado por la utilizaci\u00f3n de xmllint en un determinado documento XML, una vulnerabilidad diferente a CVE-2003-1564 y CVE-2008-3281."
          }
        ],
        "evaluatorSolution": "Patch Information - http://www.securityfocus.com/bid/30783/solution",
        "id": "CVE-2008-4409",
        "lastModified": "2026-04-23T00:35:47.467",
        "metrics": {
          "cvssMetricV2": [
            {
              "acInsufInfo": false,
              "baseSeverity": "MEDIUM",
              "cvssData": {
                "accessComplexity": "LOW",
                "accessVector": "NETWORK",
                "authentication": "NONE",
                "availabilityImpact": "PARTIAL",
                "baseScore": 5.0,
                "confidentialityImpact": "NONE",
                "integrityImpact": "NONE",
                "vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:P",
                "version": "2.0"
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              "exploitabilityScore": 10.0,
              "impactScore": 2.9,
              "obtainAllPrivilege": false,
              "obtainOtherPrivilege": false,
              "obtainUserPrivilege": false,
              "source": "nvd@nist.gov",
              "type": "Primary",
              "userInteractionRequired": false
            }
          ]
        },
        "published": "2008-10-03T17:41:40.570",
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            "tags": [
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        "sourceIdentifier": "cve@mitre.org",
        "vendorComments": [
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    },
    "redhat_vex": {
      "current_release_date": "2025-11-21T13:14:43+00:00",
      "cve": "CVE-2008-4409",
      "id": "CVE-2008-4409",
      "initial_release_date": "2008-10-02T00:00:00+00:00",
      "product_status:known_not_affected": "1",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "libxml2: infinite loop when entity is used in entity definition",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2008/cve-2008-4409.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "moderate",
      "current_release_date": "2026-08-23T23:56:51Z",
      "cve": "CVE-2008-4409",
      "id": "CVE-2008-4409",
      "initial_release_date": "2023-02-15T06:06:57Z",
      "product_status:known_not_affected": "223",
      "product_status:recommended": "243",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2008-4409",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2008-4409.json",
      "version": "19"
    }
  }
}



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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.



Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.