Vulnerability-Lookup

GHSA-43R8-MVRP-6Q9C

Vulnerability from github – Published: 2022-05-17 05:28 – Updated: 2025-04-11 03:52

Details

The ap_pregsub function in server/util.c in the Apache HTTP Server 2.0.x through 2.0.64 and 2.2.x through 2.2.21, when the mod_setenvif module is enabled, does not restrict the size of values of environment variables, which allows local users to cause a denial of service (memory consumption or NULL pointer dereference) via a .htaccess file with a crafted SetEnvIf directive, in conjunction with a crafted HTTP request header, related to (1) the "len +=" statement and (2) the apr_pcalloc function call, a different vulnerability than CVE-2011-3607.

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{
  "affected": [],
  "aliases": [
    "CVE-2011-4415"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-20"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2011-11-08T11:55:00Z",
    "severity": "LOW"
  },
  "details": "The ap_pregsub function in server/util.c in the Apache HTTP Server 2.0.x through 2.0.64 and 2.2.x through 2.2.21, when the mod_setenvif module is enabled, does not restrict the size of values of environment variables, which allows local users to cause a denial of service (memory consumption or NULL pointer dereference) via a .htaccess file with a crafted SetEnvIf directive, in conjunction with a crafted HTTP request header, related to (1) the \"len +=\" statement and (2) the apr_pcalloc function call, a different vulnerability than CVE-2011-3607.",
  "id": "GHSA-43r8-mvrp-6q9c",
  "modified": "2025-04-11T03:52:44Z",
  "published": "2022-05-17T05:28:05Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2011-4415"
    },
    {
      "type": "WEB",
      "url": "http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?objectID=c03360041"
    },
    {
      "type": "WEB",
      "url": "http://www.gossamer-threads.com/lists/apache/dev/403775"
    },
    {
      "type": "WEB",
      "url": "http://www.halfdog.net/Security/2011/ApacheModSetEnvIfIntegerOverflow"
    },
    {
      "type": "WEB",
      "url": "http://www.halfdog.net/Security/2011/ApacheModSetEnvIfIntegerOverflow/DemoExploit.html"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

CVE-2011-4415 (GCVE-0-2011-4415)

Vulnerability from cvelistv5 – Published: 2011-11-08 11:00 – Updated: 2024-08-07 00:09

Summary

Severity

No CVSS data available.

CWE

Assigner

mitre mitre root Scorecard

References

4 references

URL	Tags
http://h20000.www2.hp.com/bizsupport/TechSupport/…	vendor-advisoryx_refsource_HP
http://www.halfdog.net/Security/2011/ApacheModSet…	x_refsource_MISC
http://www.gossamer-threads.com/lists/apache/dev/403775	x_refsource_CONFIRM
http://www.halfdog.net/Security/2011/ApacheModSet…	x_refsource_MISC

Date Public

2011-11-02 00:00

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            "url": "http://www.halfdog.net/Security/2011/ApacheModSetEnvIfIntegerOverflow/DemoExploit.html"
          },
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            "url": "http://www.gossamer-threads.com/lists/apache/dev/403775"
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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.

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.
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GHSA-43R8-MVRP-6Q9C

CVE-2011-4415 (GCVE-0-2011-4415)

Tags

Sightings

Nomenclature

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