fkie_cve-2012-3405
Vulnerability from fkie_nvd
Published
2014-02-10 18:15
Modified
2025-04-11 00:51
Severity ?
Summary
The vfprintf function in stdio-common/vfprintf.c in libc in GNU C Library (aka glibc) 2.14 and other versions does not properly calculate a buffer length, which allows context-dependent attackers to bypass the FORTIFY_SOURCE format-string protection mechanism and cause a denial of service (segmentation fault and crash) via a format string with a large number of format specifiers that triggers "desynchronization within the buffer size handling," a different vulnerability than CVE-2012-3404.
References
secalert@redhat.comhttp://rhn.redhat.com/errata/RHSA-2012-1098.html
secalert@redhat.comhttp://rhn.redhat.com/errata/RHSA-2012-1200.html
secalert@redhat.comhttp://www.openwall.com/lists/oss-security/2012/07/11/17
secalert@redhat.comhttp://www.ubuntu.com/usn/USN-1589-1
secalert@redhat.comhttps://bugzilla.redhat.com/show_bug.cgi?id=833704
secalert@redhat.comhttps://security.gentoo.org/glsa/201503-04
secalert@redhat.comhttps://sourceware.org/bugzilla/show_bug.cgi?id=13446
af854a3a-2127-422b-91ae-364da2661108http://rhn.redhat.com/errata/RHSA-2012-1098.html
af854a3a-2127-422b-91ae-364da2661108http://rhn.redhat.com/errata/RHSA-2012-1200.html
af854a3a-2127-422b-91ae-364da2661108http://www.openwall.com/lists/oss-security/2012/07/11/17
af854a3a-2127-422b-91ae-364da2661108http://www.ubuntu.com/usn/USN-1589-1
af854a3a-2127-422b-91ae-364da2661108https://bugzilla.redhat.com/show_bug.cgi?id=833704
af854a3a-2127-422b-91ae-364da2661108https://security.gentoo.org/glsa/201503-04
af854a3a-2127-422b-91ae-364da2661108https://sourceware.org/bugzilla/show_bug.cgi?id=13446
Impacted products
Vendor Product Version
gnu glibc 2.14
redhat enterprise_virtualization 3.0
canonical ubuntu_linux 8.04
canonical ubuntu_linux 10.04
canonical ubuntu_linux 11.04
canonical ubuntu_linux 11.10
canonical ubuntu_linux 12.04
redhat enterprise_linux 6.0


To clipboard 

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  "cveTags": [],
  "descriptions": [
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      "value": "The vfprintf function in stdio-common/vfprintf.c in libc in GNU C Library (aka glibc) 2.14 and other versions does not properly calculate a buffer length, which allows context-dependent attackers to bypass the FORTIFY_SOURCE format-string protection mechanism and cause a denial of service (segmentation fault and crash) via a format string with a large number of format specifiers that triggers \"desynchronization within the buffer size handling,\" a different vulnerability than CVE-2012-3404."
    },
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      "lang": "es",
      "value": "La funci\u00f3n vfprintf en stdio-common/vfprintf.c en libc en GNU C Library (tambi\u00e9n conocido como glibc) 2.14 y otras versiones no calcula correctamente una longitud de buffer, lo que permite a atacantes dependientes de contexto evadir el mecanismo de protecci\u00f3n de cadenas de formato FORTIFY_SOURCE y causar una denegaci\u00f3n de servicio (fallo de segmentaci\u00f3n y ca\u00edda) a trav\u00e9s de una cadena de formato con un gran n\u00famero de especificadores de formato que provoca \"desincronizaci\u00f3n dentro del manejo del tama\u00f1o de buffer,\" una vulnerabilidad deferente a CVE-2012-3404."
    }
  ],
  "id": "CVE-2012-3405",
  "lastModified": "2025-04-11T00:51:21.963",
  "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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        "impactScore": 2.9,
        "obtainAllPrivilege": false,
        "obtainOtherPrivilege": false,
        "obtainUserPrivilege": false,
        "source": "nvd@nist.gov",
        "type": "Primary",
        "userInteractionRequired": false
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  },
  "published": "2014-02-10T18:15:10.073",
  "references": [
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      "url": "http://rhn.redhat.com/errata/RHSA-2012-1098.html"
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  "vulnStatus": "Deferred",
  "weaknesses": [
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          "value": "CWE-189"
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      "source": "nvd@nist.gov",
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}


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