gsd-2012-2123
Vulnerability from gsd
Modified
2023-12-13 01:20
Details
The cap_bprm_set_creds function in security/commoncap.c in the Linux kernel before 3.3.3 does not properly handle the use of file system capabilities (aka fcaps) for implementing a privileged executable file, which allows local users to bypass intended personality restrictions via a crafted application, as demonstrated by an attack that uses a parent process to disable ASLR.
Aliases
Aliases
CVE-2012-2123


To clipboard 

{
  "GSD": {
    "alias": "CVE-2012-2123",
    "description": "The cap_bprm_set_creds function in security/commoncap.c in the Linux kernel before 3.3.3 does not properly handle the use of file system capabilities (aka fcaps) for implementing a privileged executable file, which allows local users to bypass intended personality restrictions via a crafted application, as demonstrated by an attack that uses a parent process to disable ASLR.",
    "id": "GSD-2012-2123",
    "references": [
      "https://www.suse.com/security/cve/CVE-2012-2123.html",
      "https://www.debian.org/security/2012/dsa-2469",
      "https://access.redhat.com/errata/RHSA-2012:0743",
      "https://access.redhat.com/errata/RHSA-2012:0670",
      "https://linux.oracle.com/cve/CVE-2012-2123.html"
    ]
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "aliases": [
        "CVE-2012-2123"
      ],
      "details": "The cap_bprm_set_creds function in security/commoncap.c in the Linux kernel before 3.3.3 does not properly handle the use of file system capabilities (aka fcaps) for implementing a privileged executable file, which allows local users to bypass intended personality restrictions via a crafted application, as demonstrated by an attack that uses a parent process to disable ASLR.",
      "id": "GSD-2012-2123",
      "modified": "2023-12-13T01:20:16.462116Z",
      "schema_version": "1.4.0"
    }
  },
  "namespaces": {
    "cve.org": {
      "CVE_data_meta": {
        "ASSIGNER": "secalert@redhat.com",
        "ID": "CVE-2012-2123",
        "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",
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      "description": {
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            "value": "The cap_bprm_set_creds function in security/commoncap.c in the Linux kernel before 3.3.3 does not properly handle the use of file system capabilities (aka fcaps) for implementing a privileged executable file, which allows local users to bypass intended personality restrictions via a crafted application, as demonstrated by an attack that uses a parent process to disable ASLR."
          }
        ]
      },
      "problemtype": {
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                "value": "n/a"
              }
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      },
      "references": {
        "reference_data": [
          {
            "name": "http://rhn.redhat.com/errata/RHSA-2012-0670.html",
            "refsource": "MISC",
            "url": "http://rhn.redhat.com/errata/RHSA-2012-0670.html"
          },
          {
            "name": "http://www.debian.org/security/2012/dsa-2469",
            "refsource": "MISC",
            "url": "http://www.debian.org/security/2012/dsa-2469"
          },
          {
            "name": "http://rhn.redhat.com/errata/RHSA-2012-0743.html",
            "refsource": "MISC",
            "url": "http://rhn.redhat.com/errata/RHSA-2012-0743.html"
          },
          {
            "name": "http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=d52fc5dde171f030170a6cb78034d166b13c9445",
            "refsource": "MISC",
            "url": "http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=d52fc5dde171f030170a6cb78034d166b13c9445"
          },
          {
            "name": "http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.3.3",
            "refsource": "MISC",
            "url": "http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.3.3"
          },
          {
            "name": "http://www.openwall.com/lists/oss-security/2012/04/20/6",
            "refsource": "MISC",
            "url": "http://www.openwall.com/lists/oss-security/2012/04/20/6"
          },
          {
            "name": "http://www.securityfocus.com/bid/53166",
            "refsource": "MISC",
            "url": "http://www.securityfocus.com/bid/53166"
          },
          {
            "name": "http://www.securitytracker.com/id?1027072",
            "refsource": "MISC",
            "url": "http://www.securitytracker.com/id?1027072"
          },
          {
            "name": "https://exchange.xforce.ibmcloud.com/vulnerabilities/75043",
            "refsource": "MISC",
            "url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/75043"
          },
          {
            "name": "https://github.com/torvalds/linux/commit/d52fc5dde171f030170a6cb78034d166b13c9445",
            "refsource": "MISC",
            "url": "https://github.com/torvalds/linux/commit/d52fc5dde171f030170a6cb78034d166b13c9445"
          },
          {
            "name": "https://bugzilla.redhat.com/show_bug.cgi?id=806722",
            "refsource": "MISC",
            "url": "https://bugzilla.redhat.com/show_bug.cgi?id=806722"
          }
        ]
      }
    },
    "nvd.nist.gov": {
      "configurations": {
        "CVE_data_version": "4.0",
        "nodes": [
          {
            "children": [],
            "cpe_match": [
              {
                "cpe23Uri": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                "cpe_name": [],
                "versionEndExcluding": "3.3.3",
                "versionStartIncluding": "3.3",
                "vulnerable": true
              },
              {
                "cpe23Uri": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                "cpe_name": [],
                "versionEndExcluding": "3.2.16",
                "versionStartIncluding": "3.1",
                "vulnerable": true
              },
              {
                "cpe23Uri": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                "cpe_name": [],
                "versionEndExcluding": "3.0.29",
                "vulnerable": true
              }
            ],
            "operator": "OR"
          }
        ]
      },
      "cve": {
        "CVE_data_meta": {
          "ASSIGNER": "secalert@redhat.com",
          "ID": "CVE-2012-2123"
        },
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
            {
              "lang": "en",
              "value": "The cap_bprm_set_creds function in security/commoncap.c in the Linux kernel before 3.3.3 does not properly handle the use of file system capabilities (aka fcaps) for implementing a privileged executable file, which allows local users to bypass intended personality restrictions via a crafted application, as demonstrated by an attack that uses a parent process to disable ASLR."
            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "en",
                  "value": "CWE-264"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "https://bugzilla.redhat.com/show_bug.cgi?id=806722",
              "refsource": "CONFIRM",
              "tags": [
                "Issue Tracking"
              ],
              "url": "https://bugzilla.redhat.com/show_bug.cgi?id=806722"
            },
            {
              "name": "http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.3.3",
              "refsource": "CONFIRM",
              "tags": [
                "Vendor Advisory"
              ],
              "url": "http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.3.3"
            },
            {
              "name": "https://github.com/torvalds/linux/commit/d52fc5dde171f030170a6cb78034d166b13c9445",
              "refsource": "CONFIRM",
              "tags": [
                "Third Party Advisory"
              ],
              "url": "https://github.com/torvalds/linux/commit/d52fc5dde171f030170a6cb78034d166b13c9445"
            },
            {
              "name": "[oss-security] 20120419 Re: CVE request: kernel: fcaps: clear the same personality flags as suid when fcaps are used",
              "refsource": "MLIST",
              "tags": [
                "Mailing List",
                "Third Party Advisory"
              ],
              "url": "http://www.openwall.com/lists/oss-security/2012/04/20/6"
            },
            {
              "name": "53166",
              "refsource": "BID",
              "tags": [
                "Third Party Advisory",
                "VDB Entry"
              ],
              "url": "http://www.securityfocus.com/bid/53166"
            },
            {
              "name": "1027072",
              "refsource": "SECTRACK",
              "tags": [
                "Third Party Advisory",
                "VDB Entry"
              ],
              "url": "http://www.securitytracker.com/id?1027072"
            },
            {
              "name": "RHSA-2012:0743",
              "refsource": "REDHAT",
              "tags": [
                "Third Party Advisory",
                "VDB Entry"
              ],
              "url": "http://rhn.redhat.com/errata/RHSA-2012-0743.html"
            },
            {
              "name": "linux-kernel-fcaps-sec-bypass(75043)",
              "refsource": "XF",
              "tags": [
                "VDB Entry"
              ],
              "url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/75043"
            },
            {
              "name": "DSA-2469",
              "refsource": "DEBIAN",
              "tags": [
                "Third Party Advisory"
              ],
              "url": "http://www.debian.org/security/2012/dsa-2469"
            },
            {
              "name": "RHSA-2012:0670",
              "refsource": "REDHAT",
              "tags": [
                "Third Party Advisory",
                "VDB Entry"
              ],
              "url": "http://rhn.redhat.com/errata/RHSA-2012-0670.html"
            },
            {
              "name": "http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=d52fc5dde171f030170a6cb78034d166b13c9445",
              "refsource": "MISC",
              "tags": [
                "Broken Link"
              ],
              "url": "http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=d52fc5dde171f030170a6cb78034d166b13c9445"
            }
          ]
        }
      },
      "impact": {
        "baseMetricV2": {
          "cvssV2": {
            "accessComplexity": "LOW",
            "accessVector": "LOCAL",
            "authentication": "NONE",
            "availabilityImpact": "COMPLETE",
            "baseScore": 7.2,
            "confidentialityImpact": "COMPLETE",
            "integrityImpact": "COMPLETE",
            "vectorString": "AV:L/AC:L/Au:N/C:C/I:C/A:C",
            "version": "2.0"
          },
          "exploitabilityScore": 3.9,
          "impactScore": 10.0,
          "obtainAllPrivilege": false,
          "obtainOtherPrivilege": false,
          "obtainUserPrivilege": false,
          "severity": "HIGH",
          "userInteractionRequired": false
        }
      },
      "lastModifiedDate": "2023-10-12T14:12Z",
      "publishedDate": "2012-05-17T11:00Z"
    }
  }
}


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