FKIE_CVE-2012-2674

Vulnerability from fkie_nvd - Published: 2012-07-25 19:55 - Updated: 2026-06-16 23:41
Severity
Summary
Multiple integer overflows in the (1) chk_malloc, (2) leak_malloc, and (3) leak_memalign functions in libc/bionic/malloc_debug_leak.c in Bionic (libc) for Android, when libc.debug.malloc is set, make it easier for context-dependent attackers to perform memory-related attacks such as buffer overflows via a large size value, which causes less memory to be allocated than expected.
References
secalert@redhat.comhttp://kqueue.org/blog/2012/03/05/memory-allocator-security-revisited/
secalert@redhat.comhttp://www.openwall.com/lists/oss-security/2012/06/05/1
secalert@redhat.comhttp://www.openwall.com/lists/oss-security/2012/06/07/13
secalert@redhat.comhttps://github.com/android/platform_bionic/commit/7f5aa4f35e23fd37425b3a5041737cdf58f87385Exploit, Patch
af854a3a-2127-422b-91ae-364da2661108http://kqueue.org/blog/2012/03/05/memory-allocator-security-revisited/
af854a3a-2127-422b-91ae-364da2661108http://www.openwall.com/lists/oss-security/2012/06/05/1
af854a3a-2127-422b-91ae-364da2661108http://www.openwall.com/lists/oss-security/2012/06/07/13
af854a3a-2127-422b-91ae-364da2661108https://github.com/android/platform_bionic/commit/7f5aa4f35e23fd37425b3a5041737cdf58f87385Exploit, Patch
Impacted products
Vendor Product Version
google bionic -
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "n/a",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ],
      "source": "secalert@redhat.com"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:google:bionic:-:*:*:*:*:android:*:*",
              "matchCriteriaId": "36B0A10E-022D-4DD8-A9E8-9CB3AD9A47F6",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Multiple integer overflows in the (1) chk_malloc, (2) leak_malloc, and (3) leak_memalign functions in libc/bionic/malloc_debug_leak.c in Bionic (libc) for Android, when libc.debug.malloc is set, make it easier for context-dependent attackers to perform memory-related attacks such as buffer overflows via a large size value, which causes less memory to be allocated than expected."
    },
    {
      "lang": "es",
      "value": "M\u00faltiples desbordamientos de enteros en la chk_malloc (1), leak_malloc (2), y (3) las funciones de leak_memalign en libc/bionic/malloc_debug_leak.c en Bionic (libc) para Android, libc.debug.malloc cuando se establece, facilitar a los atacantes dependientes de contexto para llevar a cabo ataques relacionados con la memoria, tales como desbordamientos de b\u00fafer a trav\u00e9s de un valor de gran tama\u00f1o, lo que hace que se asigne menos memoria de lo esperado."
    }
  ],
  "id": "CVE-2012-2674",
  "lastModified": "2026-06-16T23:41:51.340",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": false,
        "baseSeverity": "MEDIUM",
        "cvssData": {
          "accessComplexity": "MEDIUM",
          "accessVector": "NETWORK",
          "authentication": "NONE",
          "availabilityImpact": "NONE",
          "baseScore": 4.3,
          "confidentialityImpact": "NONE",
          "integrityImpact": "PARTIAL",
          "vectorString": "AV:N/AC:M/Au:N/C:N/I:P/A:N",
          "version": "2.0"
        },
        "exploitabilityScore": 8.6,
        "impactScore": 2.9,
        "obtainAllPrivilege": false,
        "obtainOtherPrivilege": false,
        "obtainUserPrivilege": false,
        "source": "nvd@nist.gov",
        "type": "Primary",
        "userInteractionRequired": false
      }
    ]
  },
  "published": "2012-07-25T19:55:02.820",
  "references": [
    {
      "source": "secalert@redhat.com",
      "url": "http://kqueue.org/blog/2012/03/05/memory-allocator-security-revisited/"
    },
    {
      "source": "secalert@redhat.com",
      "url": "http://www.openwall.com/lists/oss-security/2012/06/05/1"
    },
    {
      "source": "secalert@redhat.com",
      "url": "http://www.openwall.com/lists/oss-security/2012/06/07/13"
    },
    {
      "source": "secalert@redhat.com",
      "tags": [
        "Exploit",
        "Patch"
      ],
      "url": "https://github.com/android/platform_bionic/commit/7f5aa4f35e23fd37425b3a5041737cdf58f87385"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "http://kqueue.org/blog/2012/03/05/memory-allocator-security-revisited/"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "http://www.openwall.com/lists/oss-security/2012/06/05/1"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "http://www.openwall.com/lists/oss-security/2012/06/07/13"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Exploit",
        "Patch"
      ],
      "url": "https://github.com/android/platform_bionic/commit/7f5aa4f35e23fd37425b3a5041737cdf58f87385"
    }
  ],
  "sourceIdentifier": "secalert@redhat.com",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-189"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}



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