gsd-2019-11191
Vulnerability from gsd
Modified
2023-12-13 01:24
Details
** DISPUTED ** The Linux kernel through 5.0.7, when CONFIG_IA32_AOUT is enabled and ia32_aout is loaded, allows local users to bypass ASLR on setuid a.out programs (if any exist) because install_exec_creds() is called too late in load_aout_binary() in fs/binfmt_aout.c, and thus the ptrace_may_access() check has a race condition when reading /proc/pid/stat. NOTE: the software maintainer disputes that this is a vulnerability because ASLR for a.out format executables has never been supported.
Aliases
Aliases



{
  "GSD": {
    "alias": "CVE-2019-11191",
    "description": "** DISPUTED ** The Linux kernel through 5.0.7, when CONFIG_IA32_AOUT is enabled and ia32_aout is loaded, allows local users to bypass ASLR on setuid a.out programs (if any exist) because install_exec_creds() is called too late in load_aout_binary() in fs/binfmt_aout.c, and thus the ptrace_may_access() check has a race condition when reading /proc/pid/stat. NOTE: the software maintainer disputes that this is a vulnerability because ASLR for a.out format executables has never been supported.",
    "id": "GSD-2019-11191",
    "references": [
      "https://www.suse.com/security/cve/CVE-2019-11191.html",
      "https://ubuntu.com/security/CVE-2019-11191"
    ]
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "aliases": [
        "CVE-2019-11191"
      ],
      "details": "** DISPUTED ** The Linux kernel through 5.0.7, when CONFIG_IA32_AOUT is enabled and ia32_aout is loaded, allows local users to bypass ASLR on setuid a.out programs (if any exist) because install_exec_creds() is called too late in load_aout_binary() in fs/binfmt_aout.c, and thus the ptrace_may_access() check has a race condition when reading /proc/pid/stat. NOTE: the software maintainer disputes that this is a vulnerability because ASLR for a.out format executables has never been supported.",
      "id": "GSD-2019-11191",
      "modified": "2023-12-13T01:24:00.901940Z",
      "schema_version": "1.4.0"
    }
  },
  "namespaces": {
    "cve.org": {
      "CVE_data_meta": {
        "ASSIGNER": "cve@mitre.org",
        "ID": "CVE-2019-11191",
        "STATE": "PUBLIC"
      },
      "affects": {
        "vendor": {
          "vendor_data": [
            {
              "product": {
                "product_data": [
                  {
                    "product_name": "n/a",
                    "version": {
                      "version_data": [
                        {
                          "version_value": "n/a"
                        }
                      ]
                    }
                  }
                ]
              },
              "vendor_name": "n/a"
            }
          ]
        }
      },
      "data_format": "MITRE",
      "data_type": "CVE",
      "data_version": "4.0",
      "description": {
        "description_data": [
          {
            "lang": "eng",
            "value": "** DISPUTED ** The Linux kernel through 5.0.7, when CONFIG_IA32_AOUT is enabled and ia32_aout is loaded, allows local users to bypass ASLR on setuid a.out programs (if any exist) because install_exec_creds() is called too late in load_aout_binary() in fs/binfmt_aout.c, and thus the ptrace_may_access() check has a race condition when reading /proc/pid/stat. NOTE: the software maintainer disputes that this is a vulnerability because ASLR for a.out format executables has never been supported."
          }
        ]
      },
      "problemtype": {
        "problemtype_data": [
          {
            "description": [
              {
                "lang": "eng",
                "value": "n/a"
              }
            ]
          }
        ]
      },
      "references": {
        "reference_data": [
          {
            "name": "https://www.openwall.com/lists/oss-security/2019/04/03/4",
            "refsource": "MISC",
            "url": "https://www.openwall.com/lists/oss-security/2019/04/03/4"
          },
          {
            "name": "https://www.openwall.com/lists/oss-security/2019/04/03/4/1",
            "refsource": "MISC",
            "url": "https://www.openwall.com/lists/oss-security/2019/04/03/4/1"
          },
          {
            "name": "107887",
            "refsource": "BID",
            "url": "http://www.securityfocus.com/bid/107887"
          },
          {
            "name": "[oss-security] 20190418 Re: Linux kernel \u003c 4.8 local generic ASLR - another CVE-ID",
            "refsource": "MLIST",
            "url": "http://www.openwall.com/lists/oss-security/2019/04/18/5"
          },
          {
            "name": "[oss-security] 20190522 Re: Linux kernel \u003c 4.8 local generic ASLR - another CVE-ID",
            "refsource": "MLIST",
            "url": "http://www.openwall.com/lists/oss-security/2019/05/22/7"
          },
          {
            "name": "USN-4007-2",
            "refsource": "UBUNTU",
            "url": "https://usn.ubuntu.com/4007-2/"
          },
          {
            "name": "USN-4008-1",
            "refsource": "UBUNTU",
            "url": "https://usn.ubuntu.com/4008-1/"
          },
          {
            "name": "USN-4006-1",
            "refsource": "UBUNTU",
            "url": "https://usn.ubuntu.com/4006-1/"
          },
          {
            "name": "USN-4006-2",
            "refsource": "UBUNTU",
            "url": "https://usn.ubuntu.com/4006-2/"
          },
          {
            "name": "USN-4007-1",
            "refsource": "UBUNTU",
            "url": "https://usn.ubuntu.com/4007-1/"
          },
          {
            "name": "USN-4008-3",
            "refsource": "UBUNTU",
            "url": "https://usn.ubuntu.com/4008-3/"
          },
          {
            "name": "openSUSE-SU-2019:1570",
            "refsource": "SUSE",
            "url": "http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00039.html"
          }
        ]
      }
    },
    "nvd.nist.gov": {
      "cve": {
        "configurations": [
          {
            "nodes": [
              {
                "cpeMatch": [
                  {
                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                    "matchCriteriaId": "3B7E7650-82C7-44BB-8433-AD8E9881249E",
                    "versionEndIncluding": "5.0.7",
                    "vulnerable": true
                  }
                ],
                "negate": false,
                "operator": "OR"
              }
            ]
          }
        ],
        "descriptions": [
          {
            "lang": "en",
            "value": "The Linux kernel through 5.0.7, when CONFIG_IA32_AOUT is enabled and ia32_aout is loaded, allows local users to bypass ASLR on setuid a.out programs (if any exist) because install_exec_creds() is called too late in load_aout_binary() in fs/binfmt_aout.c, and thus the ptrace_may_access() check has a race condition when reading /proc/pid/stat. NOTE: the software maintainer disputes that this is a vulnerability because ASLR for a.out format executables has never been supported"
          },
          {
            "lang": "es",
            "value": "** EN DISPUTA ** En el kernel de Linux hasta de la versi\u00f3n 5.0.7, cuando CONFIG_IA32_AOUT est\u00e1 habilitado y ia32_aout est\u00e1 cargado, permite a los usuarios locales omitir ASLR en programas setuid a.out (si existe) porque install_exec_creds() es llamado demasiado tarde en load_aout_binary() en fs/binfmt_aout .c, y por lo tanto la comprobaci\u00f3n ptrace_may_access() tiene una condici\u00f3n de carrera cuando se lee /proc/pid/stat. NOTA: el mantenedor de software discute que se trate de una vulnerabilidad porque ASLR para un archivo ejecutable de formato nunca fue compatible."
          }
        ],
        "id": "CVE-2019-11191",
        "lastModified": "2024-04-11T01:03:32.080",
        "metrics": {
          "cvssMetricV2": [
            {
              "acInsufInfo": false,
              "baseSeverity": "LOW",
              "cvssData": {
                "accessComplexity": "MEDIUM",
                "accessVector": "LOCAL",
                "authentication": "NONE",
                "availabilityImpact": "NONE",
                "baseScore": 1.9,
                "confidentialityImpact": "PARTIAL",
                "integrityImpact": "NONE",
                "vectorString": "AV:L/AC:M/Au:N/C:P/I:N/A:N",
                "version": "2.0"
              },
              "exploitabilityScore": 3.4,
              "impactScore": 2.9,
              "obtainAllPrivilege": false,
              "obtainOtherPrivilege": false,
              "obtainUserPrivilege": false,
              "source": "nvd@nist.gov",
              "type": "Primary",
              "userInteractionRequired": false
            }
          ],
          "cvssMetricV30": [
            {
              "cvssData": {
                "attackComplexity": "HIGH",
                "attackVector": "LOCAL",
                "availabilityImpact": "NONE",
                "baseScore": 2.5,
                "baseSeverity": "LOW",
                "confidentialityImpact": "LOW",
                "integrityImpact": "NONE",
                "privilegesRequired": "LOW",
                "scope": "UNCHANGED",
                "userInteraction": "NONE",
                "vectorString": "CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N",
                "version": "3.0"
              },
              "exploitabilityScore": 1.0,
              "impactScore": 1.4,
              "source": "nvd@nist.gov",
              "type": "Primary"
            }
          ]
        },
        "published": "2019-04-12T00:29:00.310",
        "references": [
          {
            "source": "cve@mitre.org",
            "url": "http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00039.html"
          },
          {
            "source": "cve@mitre.org",
            "tags": [
              "Mailing List",
              "Third Party Advisory"
            ],
            "url": "http://www.openwall.com/lists/oss-security/2019/04/18/5"
          },
          {
            "source": "cve@mitre.org",
            "url": "http://www.openwall.com/lists/oss-security/2019/05/22/7"
          },
          {
            "source": "cve@mitre.org",
            "tags": [
              "Third Party Advisory",
              "VDB Entry"
            ],
            "url": "http://www.securityfocus.com/bid/107887"
          },
          {
            "source": "cve@mitre.org",
            "url": "https://usn.ubuntu.com/4006-1/"
          },
          {
            "source": "cve@mitre.org",
            "url": "https://usn.ubuntu.com/4006-2/"
          },
          {
            "source": "cve@mitre.org",
            "url": "https://usn.ubuntu.com/4007-1/"
          },
          {
            "source": "cve@mitre.org",
            "url": "https://usn.ubuntu.com/4007-2/"
          },
          {
            "source": "cve@mitre.org",
            "url": "https://usn.ubuntu.com/4008-1/"
          },
          {
            "source": "cve@mitre.org",
            "url": "https://usn.ubuntu.com/4008-3/"
          },
          {
            "source": "cve@mitre.org",
            "tags": [
              "Mailing List",
              "Exploit",
              "Third Party Advisory"
            ],
            "url": "https://www.openwall.com/lists/oss-security/2019/04/03/4"
          },
          {
            "source": "cve@mitre.org",
            "tags": [
              "Mailing List",
              "Exploit",
              "Third Party Advisory"
            ],
            "url": "https://www.openwall.com/lists/oss-security/2019/04/03/4/1"
          }
        ],
        "sourceIdentifier": "cve@mitre.org",
        "vulnStatus": "Modified",
        "weaknesses": [
          {
            "description": [
              {
                "lang": "en",
                "value": "CWE-362"
              }
            ],
            "source": "nvd@nist.gov",
            "type": "Primary"
          }
        ]
      }
    }
  }
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.


Loading…

Loading…

Loading…

Sightings

Author Source Type Date

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
  • Confirmed: The vulnerability is confirmed from an analyst perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
  • Patched: This vulnerability was successfully patched by the user reporting the sighting.
  • Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
  • Not confirmed: The user expresses doubt about the veracity of the vulnerability.
  • Not patched: This vulnerability was not successfully patched by the user reporting the sighting.


Loading…

Loading…