CVE-2012-0021 (GCVE-0-2012-0021)

Vulnerability from cvelistv5 – Published: 2012-01-28 02:00 – Updated: 2024-08-06 18:09
VLAI
Summary
The log_cookie function in mod_log_config.c in the mod_log_config module in the Apache HTTP Server 2.2.17 through 2.2.21, when a threaded MPM is used, does not properly handle a %{}C format string, which allows remote attackers to cause a denial of service (daemon crash) via a cookie that lacks both a name and a value.
Severity
No CVSS data available.
CWE
  • n/a
References
URL Tags
http://svn.apache.org/viewvc?view=revision&revisi… x_refsource_CONFIRM
http://h20000.www2.hp.com/bizsupport/TechSupport/… vendor-advisoryx_refsource_HP
http://www.mandriva.com/security/advisories?name=… vendor-advisoryx_refsource_MANDRIVA
http://rhn.redhat.com/errata/RHSA-2012-0543.html vendor-advisoryx_refsource_REDHAT
http://marc.info/?l=bugtraq&m=133294460209056&w=2 vendor-advisoryx_refsource_HP
https://issues.apache.org/bugzilla/show_bug.cgi?i… x_refsource_CONFIRM
https://bugzilla.redhat.com/show_bug.cgi?id=785065 x_refsource_CONFIRM
http://rhn.redhat.com/errata/RHSA-2012-0542.html vendor-advisoryx_refsource_REDHAT
http://httpd.apache.org/security/vulnerabilities_… x_refsource_CONFIRM
http://lists.apple.com/archives/security-announce… vendor-advisoryx_refsource_APPLE
http://support.apple.com/kb/HT5501 x_refsource_CONFIRM
http://www.oracle.com/technetwork/topics/security… x_refsource_CONFIRM
http://marc.info/?l=bugtraq&m=133494237717847&w=2 vendor-advisoryx_refsource_HP
http://www.mandriva.com/security/advisories?name=… vendor-advisoryx_refsource_MANDRIVA
http://secunia.com/advisories/48551 third-party-advisoryx_refsource_SECUNIA
https://lists.apache.org/thread.html/8d63cb8e9100… mailing-listx_refsource_MLIST
https://lists.apache.org/thread.html/f7f95ac1cd98… mailing-listx_refsource_MLIST
https://lists.apache.org/thread.html/r57608dc51b7… mailing-listx_refsource_MLIST
https://lists.apache.org/thread.html/rfbaf647d52c… mailing-listx_refsource_MLIST
https://lists.apache.org/thread.html/rf6449464fd8… mailing-listx_refsource_MLIST
https://lists.apache.org/thread.html/r9ea3538f229… mailing-listx_refsource_MLIST
https://lists.apache.org/thread.html/r9b4b963760a… mailing-listx_refsource_MLIST
https://lists.apache.org/thread.html/r05b5357d1f6… mailing-listx_refsource_MLIST
https://lists.apache.org/thread.html/r1d201e3da31… mailing-listx_refsource_MLIST
https://lists.apache.org/thread.html/rdca61ae9906… mailing-listx_refsource_MLIST
https://lists.apache.org/thread.html/r9f93cf6dde3… mailing-listx_refsource_MLIST
https://lists.apache.org/thread.html/rad01d817195… mailing-listx_refsource_MLIST
https://lists.apache.org/thread.html/r75cbe9ea3e2… mailing-listx_refsource_MLIST
Date Public
2011-11-28 00:00
Show details on NVD website

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        ],
        "sourceIdentifier": "secalert@redhat.com",
        "vulnStatus": "Modified",
        "weaknesses": [
          {
            "description": [
              {
                "lang": "en",
                "value": "CWE-20"
              }
            ],
            "source": "nvd@nist.gov",
            "type": "Primary"
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    },
    "redhat_vex": {
      "aggregate_severity": "Low",
      "current_release_date": "2026-05-14T15:18:56+00:00",
      "cve": "CVE-2012-0021",
      "id": "CVE-2012-0021",
      "initial_release_date": "2012-01-01T00:00:00+00:00",
      "product_status:fixed": "21",
      "product_status:known_not_affected": "8",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "httpd: NULL pointer dereference crash in mod_log_config",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2012/cve-2012-0021.json",
      "version": "3"
    }
  }
}



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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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