Vulnerability-Lookup

FKIE_CVE-2013-6999

Vulnerability from fkie_nvd - Published: 2013-12-07 01:55 - Updated: 2026-06-17 00:01

Severity

Summary

The IsHandleEntrySecure function in win32k.sys in the kernel-mode drivers in Microsoft Windows Server 2008 SP2 does not properly validate the tagPROCESSINFO pW32Job field, which allows local users to cause a denial of service (NULL pointer dereference and system crash) via a crafted NtUserValidateHandleSecure call for an owned object. NOTE: the vendor reportedly disputes the significance of this report, stating that "it appears to be a local DOS ... we don't consider it a security vulnerability.

References

URL	Tags
cve@mitre.org	http://pastebin.com/raw.php?i=we0ZSQC0	Exploit
cve@mitre.org	http://secunia.com/advisories/55633	Vendor Advisory
cve@mitre.org	http://www.securityfocus.com/bid/64057
af854a3a-2127-422b-91ae-364da2661108	http://pastebin.com/raw.php?i=we0ZSQC0	Exploit
af854a3a-2127-422b-91ae-364da2661108	http://secunia.com/advisories/55633	Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108	http://www.securityfocus.com/bid/64057

Impacted products

	Vendor	Product	Version
	microsoft	windows_server_2008	*

JSON

To clipboard

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    },
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      "value": "EN DISPUTA ** ** La funci\u00f3n IsHandleEntrySecure en win32k.sys en los controladores en modo kernel de Microsoft Windows Server 2008 SP2 no valida correctamente el campo tagPROCESSINFO pW32Job, lo que permite a usuarios locales provocar una denegaci\u00f3n de servicio (referencia a un puntero NULL y ca\u00edda del sistema ) a trav\u00e9s de una llamada  NtUserValidateHandleSecure manipulada para un objeto de propiedad. NOTA: el vendedor informa: discute la importancia de este informe, afirmando que \" parece ser un local de DOS ... nosotros no consideramos que sea un problema de seguridad.\""
    }
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  "evaluatorComment": "Per: http://cwe.mitre.org/data/definitions/476.html\n\n\"CWE-476: NULL Pointer Dereference\"",
  "id": "CVE-2013-6999",
  "lastModified": "2026-06-17T00:01:15.297",
  "metrics": {
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        "baseSeverity": "MEDIUM",
        "cvssData": {
          "accessComplexity": "HIGH",
          "accessVector": "LOCAL",
          "authentication": "NONE",
          "availabilityImpact": "COMPLETE",
          "baseScore": 4.0,
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "vectorString": "AV:L/AC:H/Au:N/C:N/I:N/A:C",
          "version": "2.0"
        },
        "exploitabilityScore": 1.9,
        "impactScore": 6.9,
        "obtainAllPrivilege": false,
        "obtainOtherPrivilege": false,
        "obtainUserPrivilege": false,
        "source": "nvd@nist.gov",
        "type": "Primary",
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  "sourceIdentifier": "cve@mitre.org",
  "vulnStatus": "Modified",
  "weaknesses": [
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      "type": "Primary"
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}

CVE-2013-6999 (GCVE-0-2013-6999)

Vulnerability from cvelistv5 – Published: 2013-12-07 01:00 – Updated: 2024-08-06 17:53 Disputed

Summary

Severity

No CVSS data available.

CWE

Assigner

mitre CNA under the mitre root

CNA scorecard E 29/100 over 2158 records in the last 180 days details

References

3 references

URL	Tags
http://www.securityfocus.com/bid/64057	vdb-entryx_refsource_BID
http://pastebin.com/raw.php?i=we0ZSQC0	x_refsource_MISC
http://secunia.com/advisories/55633	third-party-advisoryx_refsource_SECUNIA

Date Public

2013-12-03 00:00

Show details on NVD website

JSON

To clipboard

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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.

Vulnerability timeline

Sightings and recorded dates, grouped by day · UTC

Order JSON

How durations are calculated

Following the VTEM framework (Black Hat USA 2015), time to patch starts when the vendor or a coordinator was informed, total time to patch at discovery, and disclosure to patch at public disclosure; vendor response time runs from the report to its acknowledgement. Time to exploit and time unpatched start at the earliest discovery or report, falling back to public disclosure. Unpatched time ends at the first recorded patch, or the calculation time when no patch is recorded. Exploitation to patch shows the interval between those two events; a published proof of concept is a public exploit, not exploitation.

Each result shows its source dates. A negative interval means the end event came first; when date-only inputs leave the order open, the result says so. Date-only inputs are approximate. The earliest evidence wins: KEV report dates and sightings are labelled as such. Records describing another vulnerability are listed but never calculated from, and a PoC alone does not establish exploitation. Missing patch evidence does not prove that no patch exists. Filters below change the event list only.

Publication & reservation Sightings KEV catalogs Other timestamps

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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

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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