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CVE-2013-6438 (GCVE-0-2013-6438)

Vulnerability from cvelistv5 – Published: 2014-03-18 01:00 – Updated: 2024-08-06 17:39
VLAI
Summary
The dav_xml_get_cdata function in main/util.c in the mod_dav module in the Apache HTTP Server before 2.4.8 does not properly remove whitespace characters from CDATA sections, which allows remote attackers to cause a denial of service (daemon crash) via a crafted DAV WRITE request.
Severity
No CVSS data available.
CWE
  • n/a
References
URL Tags
https://blogs.oracle.com/sunsecurity/entry/multip… x_refsource_CONFIRM
https://puppet.com/security/cve/cve-2013-6438 x_refsource_CONFIRM
http://secunia.com/advisories/59315 third-party-advisoryx_refsource_SECUNIA
http://secunia.com/advisories/58230 third-party-advisoryx_refsource_SECUNIA
https://support.apple.com/HT204659 x_refsource_CONFIRM
http://advisories.mageia.org/MGASA-2014-0135.html x_refsource_CONFIRM
http://www.vmware.com/security/advisories/VMSA-20… x_refsource_CONFIRM
http://kb.juniper.net/InfoCenter/index?page=conte… x_refsource_CONFIRM
http://svn.apache.org/repos/asf/httpd/httpd/branc… x_refsource_CONFIRM
http://security.gentoo.org/glsa/glsa-201408-12.xml vendor-advisoryx_refsource_GENTOO
http://www-01.ibm.com/support/docview.wss?uid=swg… x_refsource_CONFIRM
http://svn.apache.org/viewvc/httpd/httpd/trunk/mo… x_refsource_CONFIRM
http://secunia.com/advisories/60536 third-party-advisoryx_refsource_SECUNIA
http://www.securityfocus.com/bid/66303 vdb-entryx_refsource_BID
http://marc.info/?l=bugtraq&m=141017844705317&w=2 vendor-advisoryx_refsource_HP
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http://www.ubuntu.com/usn/USN-2152-1 vendor-advisoryx_refsource_UBUNTU
http://www.apache.org/dist/httpd/CHANGES_2.4.9 x_refsource_CONFIRM
http://www-01.ibm.com/support/docview.wss?uid=swg… x_refsource_CONFIRM
https://lists.apache.org/thread.html/56c2e7cc9deb… mailing-listx_refsource_MLIST
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https://lists.apache.org/thread.html/rcc44594d4d6… mailing-listx_refsource_MLIST
https://lists.apache.org/thread.html/r75cbe9ea3e2… mailing-listx_refsource_MLIST
Date Public
2014-03-17 00:00
Show details on NVD website

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    "dateReserved": "2013-11-04T00:00:00.000Z",
    "dateUpdated": "2024-08-06T17:39:01.191Z",
    "state": "PUBLISHED"
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      "date": "2026-09-16",
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      "descriptions": "[{\"lang\": \"en\", \"value\": \"The dav_xml_get_cdata function in main/util.c in the mod_dav module in the Apache HTTP Server before 2.4.8 does not properly remove whitespace characters from CDATA sections, which allows remote attackers to cause a denial of service (daemon crash) via a crafted DAV WRITE request.\"}, {\"lang\": \"es\", \"value\": \"La funci\\u00f3n dav_xml_get_cdata en main/util.c en el m\\u00f3dulo mod_dav en el Apache HTTP Server anterior a 2.4.8 no elimina debidamente caracteres de espacio en blanco de secciones CDATA, lo que permite a atacantes remotos causar una denegaci\\u00f3n de servicio (ca\\u00edda de demonio) a trav\\u00e9s de una solicitud DAV WRITE manipulada.\"}]",
      "id": "CVE-2013-6438",
      "lastModified": "2024-11-21T01:59:13.650",
      "metrics": "{\"cvssMetricV2\": [{\"source\": \"nvd@nist.gov\", \"type\": \"Primary\", \"cvssData\": {\"version\": \"2.0\", \"vectorString\": \"AV:N/AC:L/Au:N/C:N/I:N/A:P\", \"baseScore\": 5.0, \"accessVector\": \"NETWORK\", \"accessComplexity\": \"LOW\", \"authentication\": \"NONE\", \"confidentialityImpact\": \"NONE\", \"integrityImpact\": \"NONE\", \"availabilityImpact\": \"PARTIAL\"}, \"baseSeverity\": \"MEDIUM\", \"exploitabilityScore\": 10.0, \"impactScore\": 2.9, \"acInsufInfo\": false, \"obtainAllPrivilege\": false, \"obtainUserPrivilege\": false, \"obtainOtherPrivilege\": false, \"userInteractionRequired\": false}]}",
      "published": "2014-03-18T05:18:18.657",
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      "sourceIdentifier": "secalert@redhat.com",
      "vulnStatus": "Modified",
      "weaknesses": "[{\"source\": \"nvd@nist.gov\", \"type\": \"Primary\", \"description\": [{\"lang\": \"en\", \"value\": \"NVD-CWE-noinfo\"}]}]"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2013-6438\",\"sourceIdentifier\":\"secalert@redhat.com\",\"published\":\"2014-03-18T05:18:18.657\",\"lastModified\":\"2026-05-06T22:30:45.220\",\"vulnStatus\":\"Modified\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"The dav_xml_get_cdata function in main/util.c in the mod_dav module in the Apache HTTP Server before 2.4.8 does not properly remove whitespace characters from CDATA sections, which allows remote attackers to cause a denial of service (daemon crash) via a crafted DAV WRITE request.\"},{\"lang\":\"es\",\"value\":\"La funci\u00f3n dav_xml_get_cdata en main/util.c en el m\u00f3dulo mod_dav en el Apache HTTP Server anterior a 2.4.8 no elimina debidamente caracteres de espacio en blanco de secciones CDATA, lo que permite a atacantes remotos causar una denegaci\u00f3n de servicio (ca\u00edda de demonio) a trav\u00e9s de una solicitud DAV WRITE 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    "redhat_vex": {
      "aggregate_severity": "Moderate",
      "current_release_date": "2026-05-14T15:55:53+00:00",
      "cve": "CVE-2013-6438",
      "id": "CVE-2013-6438",
      "initial_release_date": "2013-10-03T00:00:00+00:00",
      "product_status:fixed": "294",
      "product_status:known_affected": "13",
      "product_status:known_not_affected": "9",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "httpd: mod_dav denial of service via crafted DAV WRITE request",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2013/cve-2013-6438.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "moderate",
      "current_release_date": "2026-09-05T01:28:49Z",
      "cve": "CVE-2013-6438",
      "id": "CVE-2013-6438",
      "initial_release_date": "2023-02-15T05:34:08Z",
      "product_status:known_affected": "3",
      "product_status:known_not_affected": "122",
      "product_status:recommended": "305",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2013-6438",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2013-6438.json",
      "version": "15"
    }
  }
}



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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.

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Detection rules are retrieved from Rulezet.

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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.


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