CVE-2015-8709 (GCVE-0-2015-8709)
Vulnerability from cvelistv5
Published
2016-02-08 02:00
Modified
2024-08-06 08:29
Severity ?
CWE
  • n/a
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.org http://lists.fedoraproject.org/pipermail/package-announce/2016-February/176484.html
security@debian.org http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00015.html
security@debian.org http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00019.html
security@debian.org http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00025.html
security@debian.org http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00026.html
security@debian.org http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00027.html
security@debian.org http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00028.html
security@debian.org http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00029.html
security@debian.org http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00030.html
security@debian.org http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00031.html
security@debian.org http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00032.html
security@debian.org http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00033.html
security@debian.org http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00034.html
security@debian.org http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00036.html
security@debian.org http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00037.html
security@debian.org http://lists.opensuse.org/opensuse-security-announce/2016-07/msg00005.html
security@debian.org http://marc.info/?l=linux-kernel&m=145204362722256&w=2
security@debian.org http://marc.info/?l=linux-kernel&m=145204641422813&w=2
security@debian.org http://www.debian.org/security/2016/dsa-3434
security@debian.org http://www.openwall.com/lists/oss-security/2015/12/17/12
security@debian.org http://www.openwall.com/lists/oss-security/2015/12/31/5
security@debian.org http://www.securityfocus.com/bid/79899
security@debian.org http://www.securitytracker.com/id/1034899
security@debian.org https://bugzilla.redhat.com/show_bug.cgi?id=1295287
security@debian.org https://lkml.org/lkml/2015/12/25/71
af854a3a-2127-422b-91ae-364da2661108 http://lists.fedoraproject.org/pipermail/package-announce/2016-February/176484.html
af854a3a-2127-422b-91ae-364da2661108 http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00015.html
af854a3a-2127-422b-91ae-364da2661108 http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00019.html
af854a3a-2127-422b-91ae-364da2661108 http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00025.html
af854a3a-2127-422b-91ae-364da2661108 http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00026.html
af854a3a-2127-422b-91ae-364da2661108 http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00027.html
af854a3a-2127-422b-91ae-364da2661108 http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00028.html
af854a3a-2127-422b-91ae-364da2661108 http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00029.html
af854a3a-2127-422b-91ae-364da2661108 http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00030.html
af854a3a-2127-422b-91ae-364da2661108 http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00031.html
af854a3a-2127-422b-91ae-364da2661108 http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00032.html
af854a3a-2127-422b-91ae-364da2661108 http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00033.html
af854a3a-2127-422b-91ae-364da2661108 http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00034.html
af854a3a-2127-422b-91ae-364da2661108 http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00036.html
af854a3a-2127-422b-91ae-364da2661108 http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00037.html
af854a3a-2127-422b-91ae-364da2661108 http://lists.opensuse.org/opensuse-security-announce/2016-07/msg00005.html
af854a3a-2127-422b-91ae-364da2661108 http://marc.info/?l=linux-kernel&m=145204362722256&w=2
af854a3a-2127-422b-91ae-364da2661108 http://marc.info/?l=linux-kernel&m=145204641422813&w=2
af854a3a-2127-422b-91ae-364da2661108 http://www.debian.org/security/2016/dsa-3434
af854a3a-2127-422b-91ae-364da2661108 http://www.openwall.com/lists/oss-security/2015/12/17/12
af854a3a-2127-422b-91ae-364da2661108 http://www.openwall.com/lists/oss-security/2015/12/31/5
af854a3a-2127-422b-91ae-364da2661108 http://www.securityfocus.com/bid/79899
af854a3a-2127-422b-91ae-364da2661108 http://www.securitytracker.com/id/1034899
af854a3a-2127-422b-91ae-364da2661108 https://bugzilla.redhat.com/show_bug.cgi?id=1295287
af854a3a-2127-422b-91ae-364da2661108 https://lkml.org/lkml/2015/12/25/71
Impacted products
Vendor Product Version
n/a n/a Version: n/a
Show details on NVD website


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              "name": "SUSE-SU-2016:1035",
              "refsource": "SUSE",
              "url": "http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00029.html"
            },
            {
              "name": "[linux-kernel] 20160106 Re: [PATCH] ptrace: being capable wrt a process requires mapped uids/gids",
              "refsource": "MLIST",
              "url": "http://marc.info/?l=linux-kernel\u0026m=145204641422813\u0026w=2"
            },
            {
              "name": "SUSE-SU-2016:1764",
              "refsource": "SUSE",
              "url": "http://lists.opensuse.org/opensuse-security-announce/2016-07/msg00005.html"
            },
            {
              "name": "SUSE-SU-2016:1031",
              "refsource": "SUSE",
              "url": "http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00025.html"
            },
            {
              "name": "SUSE-SU-2016:1019",
              "refsource": "SUSE",
              "url": "http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00019.html"
            },
            {
              "name": "[oss-security] 20151231 Re: CVE Request: Linux kernel: privilege escalation in user namespaces",
              "refsource": "MLIST",
              "url": "http://www.openwall.com/lists/oss-security/2015/12/31/5"
            },
            {
              "name": "[oss-security] 20151217 CVE Request: Linux kernel: privilege escalation in user namespaces",
              "refsource": "MLIST",
              "url": "http://www.openwall.com/lists/oss-security/2015/12/17/12"
            },
            {
              "name": "SUSE-SU-2016:1037",
              "refsource": "SUSE",
              "url": "http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00030.html"
            },
            {
              "name": "SUSE-SU-2016:1045",
              "refsource": "SUSE",
              "url": "http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00036.html"
            },
            {
              "name": "[linux-kernel] 20160106 Re: [PATCH] ptrace: being capable wrt a process requires mapped uids/gids",
              "refsource": "MLIST",
              "url": "http://marc.info/?l=linux-kernel\u0026m=145204362722256\u0026w=2"
            },
            {
              "name": "FEDORA-2016-5d43766e33",
              "refsource": "FEDORA",
              "url": "http://lists.fedoraproject.org/pipermail/package-announce/2016-February/176484.html"
            },
            {
              "name": "SUSE-SU-2016:1032",
              "refsource": "SUSE",
              "url": "http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00026.html"
            },
            {
              "name": "SUSE-SU-2016:1039",
              "refsource": "SUSE",
              "url": "http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00032.html"
            },
            {
              "name": "SUSE-SU-2016:1041",
              "refsource": "SUSE",
              "url": "http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00034.html"
            },
            {
              "name": "SUSE-SU-2016:1046",
              "refsource": "SUSE",
              "url": "http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00037.html"
            },
            {
              "name": "79899",
              "refsource": "BID",
              "url": "http://www.securityfocus.com/bid/79899"
            },
            {
              "name": "1034899",
              "refsource": "SECTRACK",
              "url": "http://www.securitytracker.com/id/1034899"
            },
            {
              "name": "openSUSE-SU-2016:1008",
              "refsource": "SUSE",
              "url": "http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00015.html"
            },
            {
              "name": "https://bugzilla.redhat.com/show_bug.cgi?id=1295287",
              "refsource": "CONFIRM",
              "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1295287"
            },
            {
              "name": "DSA-3434",
              "refsource": "DEBIAN",
              "url": "http://www.debian.org/security/2016/dsa-3434"
            },
            {
              "name": "SUSE-SU-2016:1040",
              "refsource": "SUSE",
              "url": "http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00033.html"
            }
          ]
        }
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "79363d38-fa19-49d1-9214-5f28da3f3ac5",
    "assignerShortName": "debian",
    "cveId": "CVE-2015-8709",
    "datePublished": "2016-02-08T02:00:00",
    "dateReserved": "2015-12-31T00:00:00",
    "dateUpdated": "2024-08-06T08:29:20.934Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "vulnerability-lookup:meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2015-8709\",\"sourceIdentifier\":\"security@debian.org\",\"published\":\"2016-02-08T03:59:05.887\",\"lastModified\":\"2025-04-12T10:46:40.837\",\"vulnStatus\":\"Deferred\",\"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\\\".\"}],\"metrics\":{\"cvssMetricV30\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.0\",\"vectorString\":\"CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H\",\"baseScore\":7.0,\"baseSeverity\":\"HIGH\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"HIGH\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"HIGH\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":1.0,\"impactScore\":5.9}],\"cvssMetricV2\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"2.0\",\"vectorString\":\"AV:L/AC:M/Au:N/C:C/I:C/A:C\",\"baseScore\":6.9,\"accessVector\":\"LOCAL\",\"accessComplexity\":\"MEDIUM\",\"authentication\":\"NONE\",\"confidentialityImpact\":\"COMPLETE\",\"integrityImpact\":\"COMPLETE\",\"availabilityImpact\":\"COMPLETE\"},\"baseSeverity\":\"MEDIUM\",\"exploitabilityScore\":3.4,\"impactScore\":10.0,\"acInsufInfo\":false,\"obtainAllPrivilege\":false,\"obtainUserPrivilege\":false,\"obtainOtherPrivilege\":false}]},\"weaknesses\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-264\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionEndIncluding\":\"4.4.1\",\"matchCriteriaId\":\"EDD97C46-E284-47DB-B96A-3B8D5013F2F7\"}]}]}],\"references\":[{\"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\":\"security@debian.org\"},{\"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/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  }
}


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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.
  • 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.


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