rhsa-2017_1126
Vulnerability from csaf_redhat
Published
2017-04-25 09:57
Modified
2024-11-14 22:39
Summary
Red Hat Security Advisory: kernel security update

Notes

Topic
An update for kernel is now available for Red Hat Enterprise Linux 6.2 Advanced Update Support. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.
Details
The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fix(es): * A race condition flaw was found in the N_HLDC Linux kernel driver when accessing n_hdlc.tbuf list that can lead to double free. A local, unprivileged user able to set the HDLC line discipline on the tty device could use this flaw to increase their privileges on the system. (CVE-2017-2636, Important) Red Hat would like to thank Alexander Popov for reporting this issue.
Terms of Use
This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original.


To clipboard 

{
  "document": {
    "aggregate_severity": {
      "namespace": "https://access.redhat.com/security/updates/classification/",
      "text": "Important"
    },
    "category": "csaf_security_advisory",
    "csaf_version": "2.0",
    "distribution": {
      "text": "Copyright \u00a9 Red Hat, Inc. All rights reserved.",
      "tlp": {
        "label": "WHITE",
        "url": "https://www.first.org/tlp/"
      }
    },
    "lang": "en",
    "notes": [
      {
        "category": "summary",
        "text": "An update for kernel is now available for Red Hat Enterprise Linux 6.2 Advanced Update Support.\n\nRed Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.",
        "title": "Topic"
      },
      {
        "category": "general",
        "text": "The kernel packages contain the Linux kernel, the core of any Linux operating system.\n\nSecurity Fix(es):\n\n* A race condition flaw was found in the N_HLDC Linux kernel driver when accessing n_hdlc.tbuf list that can lead to double free. A local, unprivileged user able to set the HDLC line discipline on the tty device could use this flaw to increase their privileges on the system. (CVE-2017-2636, Important)\n\nRed Hat would like to thank Alexander Popov for reporting this issue.",
        "title": "Details"
      },
      {
        "category": "legal_disclaimer",
        "text": "This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original.",
        "title": "Terms of Use"
      }
    ],
    "publisher": {
      "category": "vendor",
      "contact_details": "https://access.redhat.com/security/team/contact/",
      "issuing_authority": "Red Hat Product Security is responsible for vulnerability handling across all Red Hat products and services.",
      "name": "Red Hat Product Security",
      "namespace": "https://www.redhat.com"
    },
    "references": [
      {
        "category": "self",
        "summary": "https://access.redhat.com/errata/RHSA-2017:1126",
        "url": "https://access.redhat.com/errata/RHSA-2017:1126"
      },
      {
        "category": "external",
        "summary": "https://access.redhat.com/security/updates/classification/#important",
        "url": "https://access.redhat.com/security/updates/classification/#important"
      },
      {
        "category": "external",
        "summary": "1428319",
        "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1428319"
      },
      {
        "category": "self",
        "summary": "Canonical URL",
        "url": "https://security.access.redhat.com/data/csaf/v2/advisories/2017/rhsa-2017_1126.json"
      }
    ],
    "title": "Red Hat Security Advisory: kernel security update",
    "tracking": {
      "current_release_date": "2024-11-14T22:39:26+00:00",
      "generator": {
        "date": "2024-11-14T22:39:26+00:00",
        "engine": {
          "name": "Red Hat SDEngine",
          "version": "4.2.1"
        }
      },
      "id": "RHSA-2017:1126",
      "initial_release_date": "2017-04-25T09:57:12+00:00",
      "revision_history": [
        {
          "date": "2017-04-25T09:57:12+00:00",
          "number": "1",
          "summary": "Initial version"
        },
        {
          "date": "2017-04-25T09:57:12+00:00",
          "number": "2",
          "summary": "Last updated version"
        },
        {
          "date": "2024-11-14T22:39:26+00:00",
          "number": "3",
          "summary": "Last generated version"
        }
      ],
      "status": "final",
      "version": "3"
    }
  },
  "product_tree": {
    "branches": [
      {
        "branches": [
          {
            "branches": [
              {
                "category": "product_name",
                "name": "Red Hat Enterprise Linux Server AUS (v. 6.2)",
                "product": {
                  "name": "Red Hat Enterprise Linux Server AUS (v. 6.2)",
                  "product_id": "6Server-6.2.AUS",
                  "product_identification_helper": {
                    "cpe": "cpe:/o:redhat:rhel_mission_critical:6.2::server"
                  }
                }
              },
              {
                "category": "product_name",
                "name": "Red Hat Enterprise Linux Server Optional AUS (v. 6.2)",
                "product": {
                  "name": "Red Hat Enterprise Linux Server Optional AUS (v. 6.2)",
                  "product_id": "6Server-optional-6.2.AUS",
                  "product_identification_helper": {
                    "cpe": "cpe:/o:redhat:rhel_mission_critical:6.2::server"
                  }
                }
              }
            ],
            "category": "product_family",
            "name": "Red Hat Enterprise Linux"
          },
          {
            "branches": [
              {
                "category": "product_version",
                "name": "kernel-debuginfo-0:2.6.32-220.71.1.el6.x86_64",
                "product": {
                  "name": "kernel-debuginfo-0:2.6.32-220.71.1.el6.x86_64",
                  "product_id": "kernel-debuginfo-0:2.6.32-220.71.1.el6.x86_64",
                  "product_identification_helper": {
                    "purl": "pkg:rpm/redhat/kernel-debuginfo@2.6.32-220.71.1.el6?arch=x86_64"
                  }
                }
              },
              {
                "category": "product_version",
                "name": "python-perf-0:2.6.32-220.71.1.el6.x86_64",
                "product": {
                  "name": "python-perf-0:2.6.32-220.71.1.el6.x86_64",
                  "product_id": "python-perf-0:2.6.32-220.71.1.el6.x86_64",
                  "product_identification_helper": {
                    "purl": "pkg:rpm/redhat/python-perf@2.6.32-220.71.1.el6?arch=x86_64"
                  }
                }
              },
              {
                "category": "product_version",
                "name": "kernel-debug-debuginfo-0:2.6.32-220.71.1.el6.x86_64",
                "product": {
                  "name": "kernel-debug-debuginfo-0:2.6.32-220.71.1.el6.x86_64",
                  "product_id": "kernel-debug-debuginfo-0:2.6.32-220.71.1.el6.x86_64",
                  "product_identification_helper": {
                    "purl": "pkg:rpm/redhat/kernel-debug-debuginfo@2.6.32-220.71.1.el6?arch=x86_64"
                  }
                }
              },
              {
                "category": "product_version",
                "name": "perf-debuginfo-0:2.6.32-220.71.1.el6.x86_64",
                "product": {
                  "name": "perf-debuginfo-0:2.6.32-220.71.1.el6.x86_64",
                  "product_id": "perf-debuginfo-0:2.6.32-220.71.1.el6.x86_64",
                  "product_identification_helper": {
                    "purl": "pkg:rpm/redhat/perf-debuginfo@2.6.32-220.71.1.el6?arch=x86_64"
                  }
                }
              },
              {
                "category": "product_version",
                "name": "python-perf-debuginfo-0:2.6.32-220.71.1.el6.x86_64",
                "product": {
                  "name": "python-perf-debuginfo-0:2.6.32-220.71.1.el6.x86_64",
                  "product_id": "python-perf-debuginfo-0:2.6.32-220.71.1.el6.x86_64",
                  "product_identification_helper": {
                    "purl": "pkg:rpm/redhat/python-perf-debuginfo@2.6.32-220.71.1.el6?arch=x86_64"
                  }
                }
              },
              {
                "category": "product_version",
                "name": "kernel-debuginfo-common-x86_64-0:2.6.32-220.71.1.el6.x86_64",
                "product": {
                  "name": "kernel-debuginfo-common-x86_64-0:2.6.32-220.71.1.el6.x86_64",
                  "product_id": "kernel-debuginfo-common-x86_64-0:2.6.32-220.71.1.el6.x86_64",
                  "product_identification_helper": {
                    "purl": "pkg:rpm/redhat/kernel-debuginfo-common-x86_64@2.6.32-220.71.1.el6?arch=x86_64"
                  }
                }
              },
              {
                "category": "product_version",
                "name": "kernel-debug-0:2.6.32-220.71.1.el6.x86_64",
                "product": {
                  "name": "kernel-debug-0:2.6.32-220.71.1.el6.x86_64",
                  "product_id": "kernel-debug-0:2.6.32-220.71.1.el6.x86_64",
                  "product_identification_helper": {
                    "purl": "pkg:rpm/redhat/kernel-debug@2.6.32-220.71.1.el6?arch=x86_64"
                  }
                }
              },
              {
                "category": "product_version",
                "name": "kernel-debug-devel-0:2.6.32-220.71.1.el6.x86_64",
                "product": {
                  "name": "kernel-debug-devel-0:2.6.32-220.71.1.el6.x86_64",
                  "product_id": "kernel-debug-devel-0:2.6.32-220.71.1.el6.x86_64",
                  "product_identification_helper": {
                    "purl": "pkg:rpm/redhat/kernel-debug-devel@2.6.32-220.71.1.el6?arch=x86_64"
                  }
                }
              },
              {
                "category": "product_version",
                "name": "kernel-headers-0:2.6.32-220.71.1.el6.x86_64",
                "product": {
                  "name": "kernel-headers-0:2.6.32-220.71.1.el6.x86_64",
                  "product_id": "kernel-headers-0:2.6.32-220.71.1.el6.x86_64",
                  "product_identification_helper": {
                    "purl": "pkg:rpm/redhat/kernel-headers@2.6.32-220.71.1.el6?arch=x86_64"
                  }
                }
              },
              {
                "category": "product_version",
                "name": "perf-0:2.6.32-220.71.1.el6.x86_64",
                "product": {
                  "name": "perf-0:2.6.32-220.71.1.el6.x86_64",
                  "product_id": "perf-0:2.6.32-220.71.1.el6.x86_64",
                  "product_identification_helper": {
                    "purl": "pkg:rpm/redhat/perf@2.6.32-220.71.1.el6?arch=x86_64"
                  }
                }
              },
              {
                "category": "product_version",
                "name": "kernel-devel-0:2.6.32-220.71.1.el6.x86_64",
                "product": {
                  "name": "kernel-devel-0:2.6.32-220.71.1.el6.x86_64",
                  "product_id": "kernel-devel-0:2.6.32-220.71.1.el6.x86_64",
                  "product_identification_helper": {
                    "purl": "pkg:rpm/redhat/kernel-devel@2.6.32-220.71.1.el6?arch=x86_64"
                  }
                }
              },
              {
                "category": "product_version",
                "name": "kernel-0:2.6.32-220.71.1.el6.x86_64",
                "product": {
                  "name": "kernel-0:2.6.32-220.71.1.el6.x86_64",
                  "product_id": "kernel-0:2.6.32-220.71.1.el6.x86_64",
                  "product_identification_helper": {
                    "purl": "pkg:rpm/redhat/kernel@2.6.32-220.71.1.el6?arch=x86_64"
                  }
                }
              }
            ],
            "category": "architecture",
            "name": "x86_64"
          },
          {
            "branches": [
              {
                "category": "product_version",
                "name": "kernel-0:2.6.32-220.71.1.el6.src",
                "product": {
                  "name": "kernel-0:2.6.32-220.71.1.el6.src",
                  "product_id": "kernel-0:2.6.32-220.71.1.el6.src",
                  "product_identification_helper": {
                    "purl": "pkg:rpm/redhat/kernel@2.6.32-220.71.1.el6?arch=src"
                  }
                }
              }
            ],
            "category": "architecture",
            "name": "src"
          },
          {
            "branches": [
              {
                "category": "product_version",
                "name": "kernel-doc-0:2.6.32-220.71.1.el6.noarch",
                "product": {
                  "name": "kernel-doc-0:2.6.32-220.71.1.el6.noarch",
                  "product_id": "kernel-doc-0:2.6.32-220.71.1.el6.noarch",
                  "product_identification_helper": {
                    "purl": "pkg:rpm/redhat/kernel-doc@2.6.32-220.71.1.el6?arch=noarch"
                  }
                }
              },
              {
                "category": "product_version",
                "name": "kernel-firmware-0:2.6.32-220.71.1.el6.noarch",
                "product": {
                  "name": "kernel-firmware-0:2.6.32-220.71.1.el6.noarch",
                  "product_id": "kernel-firmware-0:2.6.32-220.71.1.el6.noarch",
                  "product_identification_helper": {
                    "purl": "pkg:rpm/redhat/kernel-firmware@2.6.32-220.71.1.el6?arch=noarch"
                  }
                }
              }
            ],
            "category": "architecture",
            "name": "noarch"
          }
        ],
        "category": "vendor",
        "name": "Red Hat"
      }
    ],
    "relationships": [
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "kernel-0:2.6.32-220.71.1.el6.src as a component of Red Hat Enterprise Linux Server AUS (v. 6.2)",
          "product_id": "6Server-6.2.AUS:kernel-0:2.6.32-220.71.1.el6.src"
        },
        "product_reference": "kernel-0:2.6.32-220.71.1.el6.src",
        "relates_to_product_reference": "6Server-6.2.AUS"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "kernel-0:2.6.32-220.71.1.el6.x86_64 as a component of Red Hat Enterprise Linux Server AUS (v. 6.2)",
          "product_id": "6Server-6.2.AUS:kernel-0:2.6.32-220.71.1.el6.x86_64"
        },
        "product_reference": "kernel-0:2.6.32-220.71.1.el6.x86_64",
        "relates_to_product_reference": "6Server-6.2.AUS"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "kernel-debug-0:2.6.32-220.71.1.el6.x86_64 as a component of Red Hat Enterprise Linux Server AUS (v. 6.2)",
          "product_id": "6Server-6.2.AUS:kernel-debug-0:2.6.32-220.71.1.el6.x86_64"
        },
        "product_reference": "kernel-debug-0:2.6.32-220.71.1.el6.x86_64",
        "relates_to_product_reference": "6Server-6.2.AUS"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "kernel-debug-debuginfo-0:2.6.32-220.71.1.el6.x86_64 as a component of Red Hat Enterprise Linux Server AUS (v. 6.2)",
          "product_id": "6Server-6.2.AUS:kernel-debug-debuginfo-0:2.6.32-220.71.1.el6.x86_64"
        },
        "product_reference": "kernel-debug-debuginfo-0:2.6.32-220.71.1.el6.x86_64",
        "relates_to_product_reference": "6Server-6.2.AUS"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "kernel-debug-devel-0:2.6.32-220.71.1.el6.x86_64 as a component of Red Hat Enterprise Linux Server AUS (v. 6.2)",
          "product_id": "6Server-6.2.AUS:kernel-debug-devel-0:2.6.32-220.71.1.el6.x86_64"
        },
        "product_reference": "kernel-debug-devel-0:2.6.32-220.71.1.el6.x86_64",
        "relates_to_product_reference": "6Server-6.2.AUS"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "kernel-debuginfo-0:2.6.32-220.71.1.el6.x86_64 as a component of Red Hat Enterprise Linux Server AUS (v. 6.2)",
          "product_id": "6Server-6.2.AUS:kernel-debuginfo-0:2.6.32-220.71.1.el6.x86_64"
        },
        "product_reference": "kernel-debuginfo-0:2.6.32-220.71.1.el6.x86_64",
        "relates_to_product_reference": "6Server-6.2.AUS"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "kernel-debuginfo-common-x86_64-0:2.6.32-220.71.1.el6.x86_64 as a component of Red Hat Enterprise Linux Server AUS (v. 6.2)",
          "product_id": "6Server-6.2.AUS:kernel-debuginfo-common-x86_64-0:2.6.32-220.71.1.el6.x86_64"
        },
        "product_reference": "kernel-debuginfo-common-x86_64-0:2.6.32-220.71.1.el6.x86_64",
        "relates_to_product_reference": "6Server-6.2.AUS"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "kernel-devel-0:2.6.32-220.71.1.el6.x86_64 as a component of Red Hat Enterprise Linux Server AUS (v. 6.2)",
          "product_id": "6Server-6.2.AUS:kernel-devel-0:2.6.32-220.71.1.el6.x86_64"
        },
        "product_reference": "kernel-devel-0:2.6.32-220.71.1.el6.x86_64",
        "relates_to_product_reference": "6Server-6.2.AUS"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "kernel-doc-0:2.6.32-220.71.1.el6.noarch as a component of Red Hat Enterprise Linux Server AUS (v. 6.2)",
          "product_id": "6Server-6.2.AUS:kernel-doc-0:2.6.32-220.71.1.el6.noarch"
        },
        "product_reference": "kernel-doc-0:2.6.32-220.71.1.el6.noarch",
        "relates_to_product_reference": "6Server-6.2.AUS"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "kernel-firmware-0:2.6.32-220.71.1.el6.noarch as a component of Red Hat Enterprise Linux Server AUS (v. 6.2)",
          "product_id": "6Server-6.2.AUS:kernel-firmware-0:2.6.32-220.71.1.el6.noarch"
        },
        "product_reference": "kernel-firmware-0:2.6.32-220.71.1.el6.noarch",
        "relates_to_product_reference": "6Server-6.2.AUS"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "kernel-headers-0:2.6.32-220.71.1.el6.x86_64 as a component of Red Hat Enterprise Linux Server AUS (v. 6.2)",
          "product_id": "6Server-6.2.AUS:kernel-headers-0:2.6.32-220.71.1.el6.x86_64"
        },
        "product_reference": "kernel-headers-0:2.6.32-220.71.1.el6.x86_64",
        "relates_to_product_reference": "6Server-6.2.AUS"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "perf-0:2.6.32-220.71.1.el6.x86_64 as a component of Red Hat Enterprise Linux Server AUS (v. 6.2)",
          "product_id": "6Server-6.2.AUS:perf-0:2.6.32-220.71.1.el6.x86_64"
        },
        "product_reference": "perf-0:2.6.32-220.71.1.el6.x86_64",
        "relates_to_product_reference": "6Server-6.2.AUS"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "perf-debuginfo-0:2.6.32-220.71.1.el6.x86_64 as a component of Red Hat Enterprise Linux Server AUS (v. 6.2)",
          "product_id": "6Server-6.2.AUS:perf-debuginfo-0:2.6.32-220.71.1.el6.x86_64"
        },
        "product_reference": "perf-debuginfo-0:2.6.32-220.71.1.el6.x86_64",
        "relates_to_product_reference": "6Server-6.2.AUS"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "python-perf-0:2.6.32-220.71.1.el6.x86_64 as a component of Red Hat Enterprise Linux Server AUS (v. 6.2)",
          "product_id": "6Server-6.2.AUS:python-perf-0:2.6.32-220.71.1.el6.x86_64"
        },
        "product_reference": "python-perf-0:2.6.32-220.71.1.el6.x86_64",
        "relates_to_product_reference": "6Server-6.2.AUS"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "python-perf-debuginfo-0:2.6.32-220.71.1.el6.x86_64 as a component of Red Hat Enterprise Linux Server AUS (v. 6.2)",
          "product_id": "6Server-6.2.AUS:python-perf-debuginfo-0:2.6.32-220.71.1.el6.x86_64"
        },
        "product_reference": "python-perf-debuginfo-0:2.6.32-220.71.1.el6.x86_64",
        "relates_to_product_reference": "6Server-6.2.AUS"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "kernel-0:2.6.32-220.71.1.el6.src as a component of Red Hat Enterprise Linux Server Optional AUS (v. 6.2)",
          "product_id": "6Server-optional-6.2.AUS:kernel-0:2.6.32-220.71.1.el6.src"
        },
        "product_reference": "kernel-0:2.6.32-220.71.1.el6.src",
        "relates_to_product_reference": "6Server-optional-6.2.AUS"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "kernel-0:2.6.32-220.71.1.el6.x86_64 as a component of Red Hat Enterprise Linux Server Optional AUS (v. 6.2)",
          "product_id": "6Server-optional-6.2.AUS:kernel-0:2.6.32-220.71.1.el6.x86_64"
        },
        "product_reference": "kernel-0:2.6.32-220.71.1.el6.x86_64",
        "relates_to_product_reference": "6Server-optional-6.2.AUS"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "kernel-debug-0:2.6.32-220.71.1.el6.x86_64 as a component of Red Hat Enterprise Linux Server Optional AUS (v. 6.2)",
          "product_id": "6Server-optional-6.2.AUS:kernel-debug-0:2.6.32-220.71.1.el6.x86_64"
        },
        "product_reference": "kernel-debug-0:2.6.32-220.71.1.el6.x86_64",
        "relates_to_product_reference": "6Server-optional-6.2.AUS"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "kernel-debug-debuginfo-0:2.6.32-220.71.1.el6.x86_64 as a component of Red Hat Enterprise Linux Server Optional AUS (v. 6.2)",
          "product_id": "6Server-optional-6.2.AUS:kernel-debug-debuginfo-0:2.6.32-220.71.1.el6.x86_64"
        },
        "product_reference": "kernel-debug-debuginfo-0:2.6.32-220.71.1.el6.x86_64",
        "relates_to_product_reference": "6Server-optional-6.2.AUS"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "kernel-debug-devel-0:2.6.32-220.71.1.el6.x86_64 as a component of Red Hat Enterprise Linux Server Optional AUS (v. 6.2)",
          "product_id": "6Server-optional-6.2.AUS:kernel-debug-devel-0:2.6.32-220.71.1.el6.x86_64"
        },
        "product_reference": "kernel-debug-devel-0:2.6.32-220.71.1.el6.x86_64",
        "relates_to_product_reference": "6Server-optional-6.2.AUS"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "kernel-debuginfo-0:2.6.32-220.71.1.el6.x86_64 as a component of Red Hat Enterprise Linux Server Optional AUS (v. 6.2)",
          "product_id": "6Server-optional-6.2.AUS:kernel-debuginfo-0:2.6.32-220.71.1.el6.x86_64"
        },
        "product_reference": "kernel-debuginfo-0:2.6.32-220.71.1.el6.x86_64",
        "relates_to_product_reference": "6Server-optional-6.2.AUS"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "kernel-debuginfo-common-x86_64-0:2.6.32-220.71.1.el6.x86_64 as a component of Red Hat Enterprise Linux Server Optional AUS (v. 6.2)",
          "product_id": "6Server-optional-6.2.AUS:kernel-debuginfo-common-x86_64-0:2.6.32-220.71.1.el6.x86_64"
        },
        "product_reference": "kernel-debuginfo-common-x86_64-0:2.6.32-220.71.1.el6.x86_64",
        "relates_to_product_reference": "6Server-optional-6.2.AUS"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "kernel-devel-0:2.6.32-220.71.1.el6.x86_64 as a component of Red Hat Enterprise Linux Server Optional AUS (v. 6.2)",
          "product_id": "6Server-optional-6.2.AUS:kernel-devel-0:2.6.32-220.71.1.el6.x86_64"
        },
        "product_reference": "kernel-devel-0:2.6.32-220.71.1.el6.x86_64",
        "relates_to_product_reference": "6Server-optional-6.2.AUS"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "kernel-doc-0:2.6.32-220.71.1.el6.noarch as a component of Red Hat Enterprise Linux Server Optional AUS (v. 6.2)",
          "product_id": "6Server-optional-6.2.AUS:kernel-doc-0:2.6.32-220.71.1.el6.noarch"
        },
        "product_reference": "kernel-doc-0:2.6.32-220.71.1.el6.noarch",
        "relates_to_product_reference": "6Server-optional-6.2.AUS"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "kernel-firmware-0:2.6.32-220.71.1.el6.noarch as a component of Red Hat Enterprise Linux Server Optional AUS (v. 6.2)",
          "product_id": "6Server-optional-6.2.AUS:kernel-firmware-0:2.6.32-220.71.1.el6.noarch"
        },
        "product_reference": "kernel-firmware-0:2.6.32-220.71.1.el6.noarch",
        "relates_to_product_reference": "6Server-optional-6.2.AUS"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "kernel-headers-0:2.6.32-220.71.1.el6.x86_64 as a component of Red Hat Enterprise Linux Server Optional AUS (v. 6.2)",
          "product_id": "6Server-optional-6.2.AUS:kernel-headers-0:2.6.32-220.71.1.el6.x86_64"
        },
        "product_reference": "kernel-headers-0:2.6.32-220.71.1.el6.x86_64",
        "relates_to_product_reference": "6Server-optional-6.2.AUS"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "perf-0:2.6.32-220.71.1.el6.x86_64 as a component of Red Hat Enterprise Linux Server Optional AUS (v. 6.2)",
          "product_id": "6Server-optional-6.2.AUS:perf-0:2.6.32-220.71.1.el6.x86_64"
        },
        "product_reference": "perf-0:2.6.32-220.71.1.el6.x86_64",
        "relates_to_product_reference": "6Server-optional-6.2.AUS"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "perf-debuginfo-0:2.6.32-220.71.1.el6.x86_64 as a component of Red Hat Enterprise Linux Server Optional AUS (v. 6.2)",
          "product_id": "6Server-optional-6.2.AUS:perf-debuginfo-0:2.6.32-220.71.1.el6.x86_64"
        },
        "product_reference": "perf-debuginfo-0:2.6.32-220.71.1.el6.x86_64",
        "relates_to_product_reference": "6Server-optional-6.2.AUS"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "python-perf-0:2.6.32-220.71.1.el6.x86_64 as a component of Red Hat Enterprise Linux Server Optional AUS (v. 6.2)",
          "product_id": "6Server-optional-6.2.AUS:python-perf-0:2.6.32-220.71.1.el6.x86_64"
        },
        "product_reference": "python-perf-0:2.6.32-220.71.1.el6.x86_64",
        "relates_to_product_reference": "6Server-optional-6.2.AUS"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "python-perf-debuginfo-0:2.6.32-220.71.1.el6.x86_64 as a component of Red Hat Enterprise Linux Server Optional AUS (v. 6.2)",
          "product_id": "6Server-optional-6.2.AUS:python-perf-debuginfo-0:2.6.32-220.71.1.el6.x86_64"
        },
        "product_reference": "python-perf-debuginfo-0:2.6.32-220.71.1.el6.x86_64",
        "relates_to_product_reference": "6Server-optional-6.2.AUS"
      }
    ]
  },
  "vulnerabilities": [
    {
      "acknowledgments": [
        {
          "names": [
            "Alexander Popov"
          ]
        }
      ],
      "cve": "CVE-2017-2636",
      "cwe": {
        "id": "CWE-362",
        "name": "Concurrent Execution using Shared Resource with Improper Synchronization (\u0027Race Condition\u0027)"
      },
      "discovery_date": "2017-03-01T00:00:00+00:00",
      "ids": [
        {
          "system_name": "Red Hat Bugzilla ID",
          "text": "1428319"
        }
      ],
      "notes": [
        {
          "category": "description",
          "text": "A race condition flaw was found in the N_HLDC Linux kernel driver when accessing n_hdlc.tbuf list that can lead to double free. A local, unprivileged user able to set the HDLC line discipline on the tty device could use this flaw to increase their privileges on the system.",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "kernel: Race condition access to n_hdlc.tbuf causes double free in n_hdlc_release()",
          "title": "Vulnerability summary"
        },
        {
          "category": "other",
          "text": "This issue does not affect the Linux kernel packages as shipped with Red Hat Enterprise Linux 5.\n\nThis issue does affect the Linux kernel packages as shipped with Red Hat Enterprise Linux 6, 7 and Red Hat Enterprise MRG 2. As this issue is rated as Important, it has been scheduled to be fixed in future updates for the respective releases.",
          "title": "Statement"
        },
        {
          "category": "general",
          "text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
          "title": "CVSS score applicability"
        }
      ],
      "product_status": {
        "fixed": [
          "6Server-6.2.AUS:kernel-0:2.6.32-220.71.1.el6.src",
          "6Server-6.2.AUS:kernel-0:2.6.32-220.71.1.el6.x86_64",
          "6Server-6.2.AUS:kernel-debug-0:2.6.32-220.71.1.el6.x86_64",
          "6Server-6.2.AUS:kernel-debug-debuginfo-0:2.6.32-220.71.1.el6.x86_64",
          "6Server-6.2.AUS:kernel-debug-devel-0:2.6.32-220.71.1.el6.x86_64",
          "6Server-6.2.AUS:kernel-debuginfo-0:2.6.32-220.71.1.el6.x86_64",
          "6Server-6.2.AUS:kernel-debuginfo-common-x86_64-0:2.6.32-220.71.1.el6.x86_64",
          "6Server-6.2.AUS:kernel-devel-0:2.6.32-220.71.1.el6.x86_64",
          "6Server-6.2.AUS:kernel-doc-0:2.6.32-220.71.1.el6.noarch",
          "6Server-6.2.AUS:kernel-firmware-0:2.6.32-220.71.1.el6.noarch",
          "6Server-6.2.AUS:kernel-headers-0:2.6.32-220.71.1.el6.x86_64",
          "6Server-6.2.AUS:perf-0:2.6.32-220.71.1.el6.x86_64",
          "6Server-6.2.AUS:perf-debuginfo-0:2.6.32-220.71.1.el6.x86_64",
          "6Server-6.2.AUS:python-perf-0:2.6.32-220.71.1.el6.x86_64",
          "6Server-6.2.AUS:python-perf-debuginfo-0:2.6.32-220.71.1.el6.x86_64",
          "6Server-optional-6.2.AUS:kernel-0:2.6.32-220.71.1.el6.src",
          "6Server-optional-6.2.AUS:kernel-0:2.6.32-220.71.1.el6.x86_64",
          "6Server-optional-6.2.AUS:kernel-debug-0:2.6.32-220.71.1.el6.x86_64",
          "6Server-optional-6.2.AUS:kernel-debug-debuginfo-0:2.6.32-220.71.1.el6.x86_64",
          "6Server-optional-6.2.AUS:kernel-debug-devel-0:2.6.32-220.71.1.el6.x86_64",
          "6Server-optional-6.2.AUS:kernel-debuginfo-0:2.6.32-220.71.1.el6.x86_64",
          "6Server-optional-6.2.AUS:kernel-debuginfo-common-x86_64-0:2.6.32-220.71.1.el6.x86_64",
          "6Server-optional-6.2.AUS:kernel-devel-0:2.6.32-220.71.1.el6.x86_64",
          "6Server-optional-6.2.AUS:kernel-doc-0:2.6.32-220.71.1.el6.noarch",
          "6Server-optional-6.2.AUS:kernel-firmware-0:2.6.32-220.71.1.el6.noarch",
          "6Server-optional-6.2.AUS:kernel-headers-0:2.6.32-220.71.1.el6.x86_64",
          "6Server-optional-6.2.AUS:perf-0:2.6.32-220.71.1.el6.x86_64",
          "6Server-optional-6.2.AUS:perf-debuginfo-0:2.6.32-220.71.1.el6.x86_64",
          "6Server-optional-6.2.AUS:python-perf-0:2.6.32-220.71.1.el6.x86_64",
          "6Server-optional-6.2.AUS:python-perf-debuginfo-0:2.6.32-220.71.1.el6.x86_64"
        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "Canonical URL",
          "url": "https://access.redhat.com/security/cve/CVE-2017-2636"
        },
        {
          "category": "external",
          "summary": "RHBZ#1428319",
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1428319"
        },
        {
          "category": "external",
          "summary": "https://www.cve.org/CVERecord?id=CVE-2017-2636",
          "url": "https://www.cve.org/CVERecord?id=CVE-2017-2636"
        },
        {
          "category": "external",
          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2017-2636",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2017-2636"
        },
        {
          "category": "external",
          "summary": "https://a13xp0p0v.github.io/2017/03/24/CVE-2017-2636.html",
          "url": "https://a13xp0p0v.github.io/2017/03/24/CVE-2017-2636.html"
        },
        {
          "category": "external",
          "summary": "https://access.redhat.com/security/vulnerabilities/CVE-2017-2636",
          "url": "https://access.redhat.com/security/vulnerabilities/CVE-2017-2636"
        }
      ],
      "release_date": "2017-03-07T00:00:00+00:00",
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2017-04-25T09:57:12+00:00",
          "details": "For details on how to apply this update, which includes the changes described in this advisory, refer to:\n\nhttps://access.redhat.com/articles/11258\n\nThe system must be rebooted for this update to take effect.",
          "product_ids": [
            "6Server-6.2.AUS:kernel-0:2.6.32-220.71.1.el6.src",
            "6Server-6.2.AUS:kernel-0:2.6.32-220.71.1.el6.x86_64",
            "6Server-6.2.AUS:kernel-debug-0:2.6.32-220.71.1.el6.x86_64",
            "6Server-6.2.AUS:kernel-debug-debuginfo-0:2.6.32-220.71.1.el6.x86_64",
            "6Server-6.2.AUS:kernel-debug-devel-0:2.6.32-220.71.1.el6.x86_64",
            "6Server-6.2.AUS:kernel-debuginfo-0:2.6.32-220.71.1.el6.x86_64",
            "6Server-6.2.AUS:kernel-debuginfo-common-x86_64-0:2.6.32-220.71.1.el6.x86_64",
            "6Server-6.2.AUS:kernel-devel-0:2.6.32-220.71.1.el6.x86_64",
            "6Server-6.2.AUS:kernel-doc-0:2.6.32-220.71.1.el6.noarch",
            "6Server-6.2.AUS:kernel-firmware-0:2.6.32-220.71.1.el6.noarch",
            "6Server-6.2.AUS:kernel-headers-0:2.6.32-220.71.1.el6.x86_64",
            "6Server-6.2.AUS:perf-0:2.6.32-220.71.1.el6.x86_64",
            "6Server-6.2.AUS:perf-debuginfo-0:2.6.32-220.71.1.el6.x86_64",
            "6Server-6.2.AUS:python-perf-0:2.6.32-220.71.1.el6.x86_64",
            "6Server-6.2.AUS:python-perf-debuginfo-0:2.6.32-220.71.1.el6.x86_64",
            "6Server-optional-6.2.AUS:kernel-0:2.6.32-220.71.1.el6.src",
            "6Server-optional-6.2.AUS:kernel-0:2.6.32-220.71.1.el6.x86_64",
            "6Server-optional-6.2.AUS:kernel-debug-0:2.6.32-220.71.1.el6.x86_64",
            "6Server-optional-6.2.AUS:kernel-debug-debuginfo-0:2.6.32-220.71.1.el6.x86_64",
            "6Server-optional-6.2.AUS:kernel-debug-devel-0:2.6.32-220.71.1.el6.x86_64",
            "6Server-optional-6.2.AUS:kernel-debuginfo-0:2.6.32-220.71.1.el6.x86_64",
            "6Server-optional-6.2.AUS:kernel-debuginfo-common-x86_64-0:2.6.32-220.71.1.el6.x86_64",
            "6Server-optional-6.2.AUS:kernel-devel-0:2.6.32-220.71.1.el6.x86_64",
            "6Server-optional-6.2.AUS:kernel-doc-0:2.6.32-220.71.1.el6.noarch",
            "6Server-optional-6.2.AUS:kernel-firmware-0:2.6.32-220.71.1.el6.noarch",
            "6Server-optional-6.2.AUS:kernel-headers-0:2.6.32-220.71.1.el6.x86_64",
            "6Server-optional-6.2.AUS:perf-0:2.6.32-220.71.1.el6.x86_64",
            "6Server-optional-6.2.AUS:perf-debuginfo-0:2.6.32-220.71.1.el6.x86_64",
            "6Server-optional-6.2.AUS:python-perf-0:2.6.32-220.71.1.el6.x86_64",
            "6Server-optional-6.2.AUS:python-perf-debuginfo-0:2.6.32-220.71.1.el6.x86_64"
          ],
          "restart_required": {
            "category": "machine"
          },
          "url": "https://access.redhat.com/errata/RHSA-2017:1126"
        },
        {
          "category": "workaround",
          "details": "The  n_hdlc kernel module will be automatically loaded when an application  attempts to use the HDLC line discipline from userspace.  This module  can be prevented from being loaded by using the system-wide modprobe  rules. The following command, run as root, will prevent accidental or  intentional loading of the module.  Red Hat Product Security believe  this method is a robust method to prevent accidental loading of the  module, even by privileged users.\n\n\u200b# echo \"install n_hdlc /bin/true\" \u003e\u003e /etc/modprobe.d/disable-n_hdlc.conf\n\nThe  system will need to be restarted if the n_hdlc modules are already  loaded.  In most circumstances, the n_hdlc kernel modules will be unable to be unloaded if in use and while any current process using this line  discipline is required.\n\nExploiting this flaw does not require Microgate or SyncLink hardware to be in use.\n\nIf further assistance is needed, see this KCS article ( https://access.redhat.com/solutions/41278 ) or contact Red Hat Global Support Services.",
          "product_ids": [
            "6Server-6.2.AUS:kernel-0:2.6.32-220.71.1.el6.src",
            "6Server-6.2.AUS:kernel-0:2.6.32-220.71.1.el6.x86_64",
            "6Server-6.2.AUS:kernel-debug-0:2.6.32-220.71.1.el6.x86_64",
            "6Server-6.2.AUS:kernel-debug-debuginfo-0:2.6.32-220.71.1.el6.x86_64",
            "6Server-6.2.AUS:kernel-debug-devel-0:2.6.32-220.71.1.el6.x86_64",
            "6Server-6.2.AUS:kernel-debuginfo-0:2.6.32-220.71.1.el6.x86_64",
            "6Server-6.2.AUS:kernel-debuginfo-common-x86_64-0:2.6.32-220.71.1.el6.x86_64",
            "6Server-6.2.AUS:kernel-devel-0:2.6.32-220.71.1.el6.x86_64",
            "6Server-6.2.AUS:kernel-doc-0:2.6.32-220.71.1.el6.noarch",
            "6Server-6.2.AUS:kernel-firmware-0:2.6.32-220.71.1.el6.noarch",
            "6Server-6.2.AUS:kernel-headers-0:2.6.32-220.71.1.el6.x86_64",
            "6Server-6.2.AUS:perf-0:2.6.32-220.71.1.el6.x86_64",
            "6Server-6.2.AUS:perf-debuginfo-0:2.6.32-220.71.1.el6.x86_64",
            "6Server-6.2.AUS:python-perf-0:2.6.32-220.71.1.el6.x86_64",
            "6Server-6.2.AUS:python-perf-debuginfo-0:2.6.32-220.71.1.el6.x86_64",
            "6Server-optional-6.2.AUS:kernel-0:2.6.32-220.71.1.el6.src",
            "6Server-optional-6.2.AUS:kernel-0:2.6.32-220.71.1.el6.x86_64",
            "6Server-optional-6.2.AUS:kernel-debug-0:2.6.32-220.71.1.el6.x86_64",
            "6Server-optional-6.2.AUS:kernel-debug-debuginfo-0:2.6.32-220.71.1.el6.x86_64",
            "6Server-optional-6.2.AUS:kernel-debug-devel-0:2.6.32-220.71.1.el6.x86_64",
            "6Server-optional-6.2.AUS:kernel-debuginfo-0:2.6.32-220.71.1.el6.x86_64",
            "6Server-optional-6.2.AUS:kernel-debuginfo-common-x86_64-0:2.6.32-220.71.1.el6.x86_64",
            "6Server-optional-6.2.AUS:kernel-devel-0:2.6.32-220.71.1.el6.x86_64",
            "6Server-optional-6.2.AUS:kernel-doc-0:2.6.32-220.71.1.el6.noarch",
            "6Server-optional-6.2.AUS:kernel-firmware-0:2.6.32-220.71.1.el6.noarch",
            "6Server-optional-6.2.AUS:kernel-headers-0:2.6.32-220.71.1.el6.x86_64",
            "6Server-optional-6.2.AUS:perf-0:2.6.32-220.71.1.el6.x86_64",
            "6Server-optional-6.2.AUS:perf-debuginfo-0:2.6.32-220.71.1.el6.x86_64",
            "6Server-optional-6.2.AUS:python-perf-0:2.6.32-220.71.1.el6.x86_64",
            "6Server-optional-6.2.AUS:python-perf-debuginfo-0:2.6.32-220.71.1.el6.x86_64"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "attackComplexity": "LOW",
            "attackVector": "LOCAL",
            "availabilityImpact": "HIGH",
            "baseScore": 7.8,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.0"
          },
          "products": [
            "6Server-6.2.AUS:kernel-0:2.6.32-220.71.1.el6.src",
            "6Server-6.2.AUS:kernel-0:2.6.32-220.71.1.el6.x86_64",
            "6Server-6.2.AUS:kernel-debug-0:2.6.32-220.71.1.el6.x86_64",
            "6Server-6.2.AUS:kernel-debug-debuginfo-0:2.6.32-220.71.1.el6.x86_64",
            "6Server-6.2.AUS:kernel-debug-devel-0:2.6.32-220.71.1.el6.x86_64",
            "6Server-6.2.AUS:kernel-debuginfo-0:2.6.32-220.71.1.el6.x86_64",
            "6Server-6.2.AUS:kernel-debuginfo-common-x86_64-0:2.6.32-220.71.1.el6.x86_64",
            "6Server-6.2.AUS:kernel-devel-0:2.6.32-220.71.1.el6.x86_64",
            "6Server-6.2.AUS:kernel-doc-0:2.6.32-220.71.1.el6.noarch",
            "6Server-6.2.AUS:kernel-firmware-0:2.6.32-220.71.1.el6.noarch",
            "6Server-6.2.AUS:kernel-headers-0:2.6.32-220.71.1.el6.x86_64",
            "6Server-6.2.AUS:perf-0:2.6.32-220.71.1.el6.x86_64",
            "6Server-6.2.AUS:perf-debuginfo-0:2.6.32-220.71.1.el6.x86_64",
            "6Server-6.2.AUS:python-perf-0:2.6.32-220.71.1.el6.x86_64",
            "6Server-6.2.AUS:python-perf-debuginfo-0:2.6.32-220.71.1.el6.x86_64",
            "6Server-optional-6.2.AUS:kernel-0:2.6.32-220.71.1.el6.src",
            "6Server-optional-6.2.AUS:kernel-0:2.6.32-220.71.1.el6.x86_64",
            "6Server-optional-6.2.AUS:kernel-debug-0:2.6.32-220.71.1.el6.x86_64",
            "6Server-optional-6.2.AUS:kernel-debug-debuginfo-0:2.6.32-220.71.1.el6.x86_64",
            "6Server-optional-6.2.AUS:kernel-debug-devel-0:2.6.32-220.71.1.el6.x86_64",
            "6Server-optional-6.2.AUS:kernel-debuginfo-0:2.6.32-220.71.1.el6.x86_64",
            "6Server-optional-6.2.AUS:kernel-debuginfo-common-x86_64-0:2.6.32-220.71.1.el6.x86_64",
            "6Server-optional-6.2.AUS:kernel-devel-0:2.6.32-220.71.1.el6.x86_64",
            "6Server-optional-6.2.AUS:kernel-doc-0:2.6.32-220.71.1.el6.noarch",
            "6Server-optional-6.2.AUS:kernel-firmware-0:2.6.32-220.71.1.el6.noarch",
            "6Server-optional-6.2.AUS:kernel-headers-0:2.6.32-220.71.1.el6.x86_64",
            "6Server-optional-6.2.AUS:perf-0:2.6.32-220.71.1.el6.x86_64",
            "6Server-optional-6.2.AUS:perf-debuginfo-0:2.6.32-220.71.1.el6.x86_64",
            "6Server-optional-6.2.AUS:python-perf-0:2.6.32-220.71.1.el6.x86_64",
            "6Server-optional-6.2.AUS:python-perf-debuginfo-0:2.6.32-220.71.1.el6.x86_64"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Important"
        }
      ],
      "title": "kernel: Race condition access to n_hdlc.tbuf causes double free in n_hdlc_release()"
    }
  ]
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.




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.