GCVE Workshop - 22 September 2026 (14:00-18:00), Luxembourg Before The Vulnopticon Conference - Registration

GSD-2019-11191

Vulnerability from gsd - Updated: 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
CVE-2019-11191
To clipboard 

{
  "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.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.


Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.