gsd-2012-0056
Vulnerability from gsd
Modified
2023-12-13 01:20
Details
The mem_write function in the Linux kernel before 3.2.2, when ASLR is disabled, does not properly check permissions when writing to /proc/<pid>/mem, which allows local users to gain privileges by modifying process memory, as demonstrated by Mempodipper.
Aliases
Aliases
CVE-2012-0056


To clipboard 

{
  "GSD": {
    "alias": "CVE-2012-0056",
    "description": "The mem_write function in the Linux kernel before 3.2.2, when ASLR is disabled, does not properly check permissions when writing to /proc/\u003cpid\u003e/mem, which allows local users to gain privileges by modifying process memory, as demonstrated by Mempodipper.",
    "id": "GSD-2012-0056",
    "references": [
      "https://www.suse.com/security/cve/CVE-2012-0056.html",
      "https://access.redhat.com/errata/RHSA-2012:0061",
      "https://access.redhat.com/errata/RHSA-2012:0052",
      "https://linux.oracle.com/cve/CVE-2012-0056.html",
      "https://packetstormsecurity.com/files/cve/CVE-2012-0056"
    ]
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "aliases": [
        "CVE-2012-0056"
      ],
      "details": "The mem_write function in the Linux kernel before 3.2.2, when ASLR is disabled, does not properly check permissions when writing to /proc/\u003cpid\u003e/mem, which allows local users to gain privileges by modifying process memory, as demonstrated by Mempodipper.",
      "id": "GSD-2012-0056",
      "modified": "2023-12-13T01:20:13.347497Z",
      "schema_version": "1.4.0"
    }
  },
  "namespaces": {
    "cve.org": {
      "CVE_data_meta": {
        "ASSIGNER": "secalert@redhat.com",
        "ID": "CVE-2012-0056",
        "STATE": "PUBLIC"
      },
      "affects": {
        "vendor": {
          "vendor_data": [
            {
              "product": {
                "product_data": [
                  {
                    "product_name": "n/a",
                    "version": {
                      "version_data": [
                        {
                          "version_affected": "=",
                          "version_value": "n/a"
                        }
                      ]
                    }
                  }
                ]
              },
              "vendor_name": "n/a"
            }
          ]
        }
      },
      "data_format": "MITRE",
      "data_type": "CVE",
      "data_version": "4.0",
      "description": {
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            "value": "The mem_write function in the Linux kernel before 3.2.2, when ASLR is disabled, does not properly check permissions when writing to /proc/\u003cpid\u003e/mem, which allows local users to gain privileges by modifying process memory, as demonstrated by Mempodipper."
          }
        ]
      },
      "problemtype": {
        "problemtype_data": [
          {
            "description": [
              {
                "lang": "eng",
                "value": "n/a"
              }
            ]
          }
        ]
      },
      "references": {
        "reference_data": [
          {
            "name": "http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.2.2",
            "refsource": "MISC",
            "url": "http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.2.2"
          },
          {
            "name": "http://blog.zx2c4.com/749",
            "refsource": "MISC",
            "url": "http://blog.zx2c4.com/749"
          },
          {
            "name": "http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commitdiff%3Bh=e268337dfe26dfc7efd422a804dbb27977a3cccc",
            "refsource": "MISC",
            "url": "http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commitdiff%3Bh=e268337dfe26dfc7efd422a804dbb27977a3cccc"
          },
          {
            "name": "http://secunia.com/advisories/47708",
            "refsource": "MISC",
            "url": "http://secunia.com/advisories/47708"
          },
          {
            "name": "http://ubuntu.com/usn/usn-1336-1",
            "refsource": "MISC",
            "url": "http://ubuntu.com/usn/usn-1336-1"
          },
          {
            "name": "http://www.kb.cert.org/vuls/id/470151",
            "refsource": "MISC",
            "url": "http://www.kb.cert.org/vuls/id/470151"
          },
          {
            "name": "http://www.openwall.com/lists/oss-security/2012/01/18/1",
            "refsource": "MISC",
            "url": "http://www.openwall.com/lists/oss-security/2012/01/18/1"
          },
          {
            "name": "http://www.openwall.com/lists/oss-security/2012/01/18/2",
            "refsource": "MISC",
            "url": "http://www.openwall.com/lists/oss-security/2012/01/18/2"
          },
          {
            "name": "http://www.openwall.com/lists/oss-security/2012/01/19/4",
            "refsource": "MISC",
            "url": "http://www.openwall.com/lists/oss-security/2012/01/19/4"
          },
          {
            "name": "http://www.openwall.com/lists/oss-security/2012/01/22/4",
            "refsource": "MISC",
            "url": "http://www.openwall.com/lists/oss-security/2012/01/22/4"
          },
          {
            "name": "http://www.redhat.com/support/errata/RHSA-2012-0052.html",
            "refsource": "MISC",
            "url": "http://www.redhat.com/support/errata/RHSA-2012-0052.html"
          },
          {
            "name": "http://www.redhat.com/support/errata/RHSA-2012-0061.html",
            "refsource": "MISC",
            "url": "http://www.redhat.com/support/errata/RHSA-2012-0061.html"
          },
          {
            "name": "http://www.securityfocus.com/bid/51625",
            "refsource": "MISC",
            "url": "http://www.securityfocus.com/bid/51625"
          },
          {
            "name": "https://bugzilla.redhat.com/show_bug.cgi?id=782642",
            "refsource": "MISC",
            "url": "https://bugzilla.redhat.com/show_bug.cgi?id=782642"
          }
        ]
      }
    },
    "nvd.nist.gov": {
      "configurations": {
        "CVE_data_version": "4.0",
        "nodes": [
          {
            "children": [],
            "cpe_match": [
              {
                "cpe23Uri": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                "cpe_name": [],
                "versionEndExcluding": "3.2.2",
                "versionStartIncluding": "3.1",
                "vulnerable": true
              },
              {
                "cpe23Uri": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                "cpe_name": [],
                "versionEndExcluding": "3.0.18",
                "versionStartIncluding": "2.6.39",
                "vulnerable": true
              }
            ],
            "operator": "OR"
          }
        ]
      },
      "cve": {
        "CVE_data_meta": {
          "ASSIGNER": "secalert@redhat.com",
          "ID": "CVE-2012-0056"
        },
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
            {
              "lang": "en",
              "value": "The mem_write function in the Linux kernel before 3.2.2, when ASLR is disabled, does not properly check permissions when writing to /proc/\u003cpid\u003e/mem, which allows local users to gain privileges by modifying process memory, as demonstrated by Mempodipper."
            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "en",
                  "value": "CWE-264"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "47708",
              "refsource": "SECUNIA",
              "tags": [
                "Broken Link"
              ],
              "url": "http://secunia.com/advisories/47708"
            },
            {
              "name": "USN-1336-1",
              "refsource": "UBUNTU",
              "tags": [
                "Third Party Advisory"
              ],
              "url": "http://ubuntu.com/usn/usn-1336-1"
            },
            {
              "name": "RHSA-2012:0052",
              "refsource": "REDHAT",
              "tags": [
                "Third Party Advisory"
              ],
              "url": "http://www.redhat.com/support/errata/RHSA-2012-0052.html"
            },
            {
              "name": "[oss-security] 20120122 Re: CVE request: kernel: proc: clean up and fix /proc/\u003cpid\u003e/mem handling",
              "refsource": "MLIST",
              "tags": [
                "Mailing List",
                "Third Party Advisory"
              ],
              "url": "http://www.openwall.com/lists/oss-security/2012/01/22/4"
            },
            {
              "name": "https://bugzilla.redhat.com/show_bug.cgi?id=782642",
              "refsource": "CONFIRM",
              "tags": [
                "Issue Tracking",
                "Third Party Advisory"
              ],
              "url": "https://bugzilla.redhat.com/show_bug.cgi?id=782642"
            },
            {
              "name": "[oss-security] 20120118 CVE request: kernel: proc: clean up and fix /proc/\u003cpid\u003e/mem handling",
              "refsource": "MLIST",
              "tags": [
                "Mailing List",
                "Third Party Advisory"
              ],
              "url": "http://www.openwall.com/lists/oss-security/2012/01/18/1"
            },
            {
              "name": "[oss-security] 20120119 Re: CVE request: kernel: proc: clean up and fix /proc/\u003cpid\u003e/mem handling",
              "refsource": "MLIST",
              "tags": [
                "Mailing List",
                "Third Party Advisory"
              ],
              "url": "http://www.openwall.com/lists/oss-security/2012/01/19/4"
            },
            {
              "name": "RHSA-2012:0061",
              "refsource": "REDHAT",
              "tags": [
                "Third Party Advisory"
              ],
              "url": "http://www.redhat.com/support/errata/RHSA-2012-0061.html"
            },
            {
              "name": "51625",
              "refsource": "BID",
              "tags": [
                "Third Party Advisory",
                "VDB Entry"
              ],
              "url": "http://www.securityfocus.com/bid/51625"
            },
            {
              "name": "http://blog.zx2c4.com/749",
              "refsource": "MISC",
              "tags": [
                "Third Party Advisory"
              ],
              "url": "http://blog.zx2c4.com/749"
            },
            {
              "name": "[oss-security] 20120117 Re: CVE request: kernel: proc: clean up and fix /proc/\u003cpid\u003e/mem handling",
              "refsource": "MLIST",
              "tags": [
                "Mailing List",
                "Third Party Advisory"
              ],
              "url": "http://www.openwall.com/lists/oss-security/2012/01/18/2"
            },
            {
              "name": "http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.2.2",
              "refsource": "CONFIRM",
              "tags": [
                "Vendor Advisory"
              ],
              "url": "http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.2.2"
            },
            {
              "name": "VU#470151",
              "refsource": "CERT-VN",
              "tags": [
                "Third Party Advisory",
                "US Government Resource"
              ],
              "url": "http://www.kb.cert.org/vuls/id/470151"
            },
            {
              "name": "http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commitdiff%3Bh=e268337dfe26dfc7efd422a804dbb27977a3cccc",
              "refsource": "MISC",
              "tags": [
                "Vendor Advisory"
              ],
              "url": "http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commitdiff%3Bh=e268337dfe26dfc7efd422a804dbb27977a3cccc"
            }
          ]
        }
      },
      "impact": {
        "baseMetricV2": {
          "acInsufInfo": false,
          "cvssV2": {
            "accessComplexity": "MEDIUM",
            "accessVector": "LOCAL",
            "authentication": "NONE",
            "availabilityImpact": "COMPLETE",
            "baseScore": 6.9,
            "confidentialityImpact": "COMPLETE",
            "integrityImpact": "COMPLETE",
            "vectorString": "AV:L/AC:M/Au:N/C:C/I:C/A:C",
            "version": "2.0"
          },
          "exploitabilityScore": 3.4,
          "impactScore": 10.0,
          "obtainAllPrivilege": false,
          "obtainOtherPrivilege": false,
          "obtainUserPrivilege": false,
          "severity": "MEDIUM",
          "userInteractionRequired": false
        }
      },
      "lastModifiedDate": "2023-07-27T15:21Z",
      "publishedDate": "2012-01-27T15:55Z"
    }
  }
}


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