fkie_cve-2015-8709
Vulnerability from fkie_nvd
Published
2016-02-08 03:59
Modified
2025-04-12 10:46
Summary
kernel/ptrace.c in the Linux kernel through 4.4.1 mishandles uid and gid mappings, which allows local users to gain privileges by establishing a user namespace, waiting for a root process to enter that namespace with an unsafe uid or gid, and then using the ptrace system call. NOTE: the vendor states "there is no kernel bug here.
References
security@debian.orghttp://lists.fedoraproject.org/pipermail/package-announce/2016-February/176484.html
security@debian.orghttp://lists.opensuse.org/opensuse-security-announce/2016-04/msg00015.html
security@debian.orghttp://lists.opensuse.org/opensuse-security-announce/2016-04/msg00019.html
security@debian.orghttp://lists.opensuse.org/opensuse-security-announce/2016-04/msg00025.html
security@debian.orghttp://lists.opensuse.org/opensuse-security-announce/2016-04/msg00026.html
security@debian.orghttp://lists.opensuse.org/opensuse-security-announce/2016-04/msg00027.html
security@debian.orghttp://lists.opensuse.org/opensuse-security-announce/2016-04/msg00028.html
security@debian.orghttp://lists.opensuse.org/opensuse-security-announce/2016-04/msg00029.html
security@debian.orghttp://lists.opensuse.org/opensuse-security-announce/2016-04/msg00030.html
security@debian.orghttp://lists.opensuse.org/opensuse-security-announce/2016-04/msg00031.html
security@debian.orghttp://lists.opensuse.org/opensuse-security-announce/2016-04/msg00032.html
security@debian.orghttp://lists.opensuse.org/opensuse-security-announce/2016-04/msg00033.html
security@debian.orghttp://lists.opensuse.org/opensuse-security-announce/2016-04/msg00034.html
security@debian.orghttp://lists.opensuse.org/opensuse-security-announce/2016-04/msg00036.html
security@debian.orghttp://lists.opensuse.org/opensuse-security-announce/2016-04/msg00037.html
security@debian.orghttp://lists.opensuse.org/opensuse-security-announce/2016-07/msg00005.html
security@debian.orghttp://marc.info/?l=linux-kernel&m=145204362722256&w=2
security@debian.orghttp://marc.info/?l=linux-kernel&m=145204641422813&w=2
security@debian.orghttp://www.debian.org/security/2016/dsa-3434
security@debian.orghttp://www.openwall.com/lists/oss-security/2015/12/17/12
security@debian.orghttp://www.openwall.com/lists/oss-security/2015/12/31/5
security@debian.orghttp://www.securityfocus.com/bid/79899
security@debian.orghttp://www.securitytracker.com/id/1034899
security@debian.orghttps://bugzilla.redhat.com/show_bug.cgi?id=1295287
security@debian.orghttps://lkml.org/lkml/2015/12/25/71
af854a3a-2127-422b-91ae-364da2661108http://lists.fedoraproject.org/pipermail/package-announce/2016-February/176484.html
af854a3a-2127-422b-91ae-364da2661108http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00015.html
af854a3a-2127-422b-91ae-364da2661108http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00019.html
af854a3a-2127-422b-91ae-364da2661108http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00025.html
af854a3a-2127-422b-91ae-364da2661108http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00026.html
af854a3a-2127-422b-91ae-364da2661108http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00027.html
af854a3a-2127-422b-91ae-364da2661108http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00028.html
af854a3a-2127-422b-91ae-364da2661108http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00029.html
af854a3a-2127-422b-91ae-364da2661108http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00030.html
af854a3a-2127-422b-91ae-364da2661108http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00031.html
af854a3a-2127-422b-91ae-364da2661108http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00032.html
af854a3a-2127-422b-91ae-364da2661108http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00033.html
af854a3a-2127-422b-91ae-364da2661108http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00034.html
af854a3a-2127-422b-91ae-364da2661108http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00036.html
af854a3a-2127-422b-91ae-364da2661108http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00037.html
af854a3a-2127-422b-91ae-364da2661108http://lists.opensuse.org/opensuse-security-announce/2016-07/msg00005.html
af854a3a-2127-422b-91ae-364da2661108http://marc.info/?l=linux-kernel&m=145204362722256&w=2
af854a3a-2127-422b-91ae-364da2661108http://marc.info/?l=linux-kernel&m=145204641422813&w=2
af854a3a-2127-422b-91ae-364da2661108http://www.debian.org/security/2016/dsa-3434
af854a3a-2127-422b-91ae-364da2661108http://www.openwall.com/lists/oss-security/2015/12/17/12
af854a3a-2127-422b-91ae-364da2661108http://www.openwall.com/lists/oss-security/2015/12/31/5
af854a3a-2127-422b-91ae-364da2661108http://www.securityfocus.com/bid/79899
af854a3a-2127-422b-91ae-364da2661108http://www.securitytracker.com/id/1034899
af854a3a-2127-422b-91ae-364da2661108https://bugzilla.redhat.com/show_bug.cgi?id=1295287
af854a3a-2127-422b-91ae-364da2661108https://lkml.org/lkml/2015/12/25/71
Impacted products
Vendor Product Version
linux linux_kernel *



{
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "EDD97C46-E284-47DB-B96A-3B8D5013F2F7",
              "versionEndIncluding": "4.4.1",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [
    {
      "sourceIdentifier": "security@debian.org",
      "tags": [
        "disputed"
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "kernel/ptrace.c in the Linux kernel through 4.4.1 mishandles uid and gid mappings, which allows local users to gain privileges by establishing a user namespace, waiting for a root process to enter that namespace with an unsafe uid or gid, and then using the ptrace system call.  NOTE: the vendor states \"there is no kernel bug here."
    },
    {
      "lang": "es",
      "value": "** DISPUTADA ** kernel/ptrace.c en el kernel de Linux hasta la versi\u00f3n 4.4.1 no maneja correctamente el mapeo uid y gid, lo que permite a usuarios locales obtener privilegios estableciendo un espacio de nombres de usuario, a la espera de un proceso root para entrar ese espacio de nombres con un uid o gid inseguro, y despu\u00e9s utilizando la llamada al sistema ptrace. NOTA: el vendedor afirma \"no hay ning\u00fan error en el kernel aqu\u00ed\"."
    }
  ],
  "id": "CVE-2015-8709",
  "lastModified": "2025-04-12T10:46:40.837",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": false,
        "baseSeverity": "MEDIUM",
        "cvssData": {
          "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,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ],
    "cvssMetricV30": [
      {
        "cvssData": {
          "attackComplexity": "HIGH",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 7.0,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H",
          "version": "3.0"
        },
        "exploitabilityScore": 1.0,
        "impactScore": 5.9,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ]
  },
  "published": "2016-02-08T03:59:05.887",
  "references": [
    {
      "source": "security@debian.org",
      "url": "http://lists.fedoraproject.org/pipermail/package-announce/2016-February/176484.html"
    },
    {
      "source": "security@debian.org",
      "url": "http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00015.html"
    },
    {
      "source": "security@debian.org",
      "url": "http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00019.html"
    },
    {
      "source": "security@debian.org",
      "url": "http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00025.html"
    },
    {
      "source": "security@debian.org",
      "url": "http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00026.html"
    },
    {
      "source": "security@debian.org",
      "url": "http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00027.html"
    },
    {
      "source": "security@debian.org",
      "url": "http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00028.html"
    },
    {
      "source": "security@debian.org",
      "url": "http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00029.html"
    },
    {
      "source": "security@debian.org",
      "url": "http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00030.html"
    },
    {
      "source": "security@debian.org",
      "url": "http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00031.html"
    },
    {
      "source": "security@debian.org",
      "url": "http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00032.html"
    },
    {
      "source": "security@debian.org",
      "url": "http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00033.html"
    },
    {
      "source": "security@debian.org",
      "url": "http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00034.html"
    },
    {
      "source": "security@debian.org",
      "url": "http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00036.html"
    },
    {
      "source": "security@debian.org",
      "url": "http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00037.html"
    },
    {
      "source": "security@debian.org",
      "url": "http://lists.opensuse.org/opensuse-security-announce/2016-07/msg00005.html"
    },
    {
      "source": "security@debian.org",
      "url": "http://marc.info/?l=linux-kernel\u0026m=145204362722256\u0026w=2"
    },
    {
      "source": "security@debian.org",
      "url": "http://marc.info/?l=linux-kernel\u0026m=145204641422813\u0026w=2"
    },
    {
      "source": "security@debian.org",
      "url": "http://www.debian.org/security/2016/dsa-3434"
    },
    {
      "source": "security@debian.org",
      "url": "http://www.openwall.com/lists/oss-security/2015/12/17/12"
    },
    {
      "source": "security@debian.org",
      "url": "http://www.openwall.com/lists/oss-security/2015/12/31/5"
    },
    {
      "source": "security@debian.org",
      "url": "http://www.securityfocus.com/bid/79899"
    },
    {
      "source": "security@debian.org",
      "url": "http://www.securitytracker.com/id/1034899"
    },
    {
      "source": "security@debian.org",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1295287"
    },
    {
      "source": "security@debian.org",
      "url": "https://lkml.org/lkml/2015/12/25/71"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "http://lists.fedoraproject.org/pipermail/package-announce/2016-February/176484.html"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00015.html"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00019.html"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00025.html"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00026.html"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00027.html"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00028.html"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00029.html"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00030.html"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00031.html"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00032.html"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00033.html"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00034.html"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00036.html"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00037.html"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "http://lists.opensuse.org/opensuse-security-announce/2016-07/msg00005.html"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "http://marc.info/?l=linux-kernel\u0026m=145204362722256\u0026w=2"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "http://marc.info/?l=linux-kernel\u0026m=145204641422813\u0026w=2"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "http://www.debian.org/security/2016/dsa-3434"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "http://www.openwall.com/lists/oss-security/2015/12/17/12"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "http://www.openwall.com/lists/oss-security/2015/12/31/5"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "http://www.securityfocus.com/bid/79899"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "http://www.securitytracker.com/id/1034899"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1295287"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "https://lkml.org/lkml/2015/12/25/71"
    }
  ],
  "sourceIdentifier": "security@debian.org",
  "vulnStatus": "Deferred",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-264"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}


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