Vulnerability-Lookup

RHSA-2016:1631

Vulnerability from csaf_redhat - Published: 2016-08-18 18:22 - Updated: 2026-02-26 20:21

Summary

Red Hat Security Advisory: realtime-kernel security and bug fix update

Severity

Important

Notes

Topic: An update for kernel-rt is now available for Red Hat Enterprise MRG 2.5. 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-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high determinism requirements. It was found that the RFC 5961 challenge ACK rate limiting as implemented in the Linux kernel's networking subsystem allowed an off-path attacker to leak certain information about a given connection by creating congestion on the global challenge ACK rate limit counter and then measuring the changes by probing packets. An off-path attacker could use this flaw to either terminate TCP connection and/or inject payload into non-secured TCP connection between two endpoints on the network. (CVE-2016-5696, Important) Red Hat would like to thank Yue Cao from Cyber Security Group in the CS department of University of California, Riverside, 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.

CVE-2016-5696

It was found that the RFC 5961 challenge ACK rate limiting as implemented in the Linux kernel's networking subsystem allowed an off-path attacker to leak certain information about a given connection by creating congestion on the global challenge ACK rate limit counter and then measuring the changes by probing packets. An off-path attacker could use this flaw to either terminate TCP connection and/or inject payload into non-secured TCP connection between two endpoints on the network.

4.8 (Medium)


                        
                          CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:L

CWE-203 - Observable Discrepancy

Vendor Fix For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 The system must be rebooted for this update to take effect. https://access.redhat.com/errata/RHSA-2016:1631

References

URL

Category

	https://access.redhat.com/errata/RHSA-2016:1631	self
	https://access.redhat.com/security/updates/classi…	external
	https://bugzilla.redhat.com/show_bug.cgi?id=1354708	external
	https://security.access.redhat.com/data/csaf/v2/a…	self
	https://access.redhat.com/security/cve/CVE-2016-5696	self
	https://bugzilla.redhat.com/show_bug.cgi?id=1354708	external
	https://www.cve.org/CVERecord?id=CVE-2016-5696	external
	https://nvd.nist.gov/vuln/detail/CVE-2016-5696	external
	http://lwn.net/Articles/696868/	external

Acknowledgments

Cyber Security Group of the CS department of University of California in Riverside Yue Cao

JSON

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-rt is now available for Red Hat Enterprise MRG 2.5.\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-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high determinism requirements.\n\nIt was found that the RFC 5961 challenge ACK rate limiting as implemented \nin the Linux kernel\u0027s networking subsystem allowed an off-path attacker to \nleak certain information about a given connection by creating congestion on \nthe global challenge ACK rate limit counter and then measuring the changes \nby probing packets. An off-path attacker could use this flaw to either \nterminate TCP connection and/or inject payload into non-secured TCP \nconnection between two endpoints on the network. (CVE-2016-5696, Important)\n\nRed Hat would like to thank Yue Cao from Cyber Security Group in the CS\ndepartment of University of California, Riverside, 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-2016:1631",
        "url": "https://access.redhat.com/errata/RHSA-2016:1631"
      },
      {
        "category": "external",
        "summary": "https://access.redhat.com/security/updates/classification/#important",
        "url": "https://access.redhat.com/security/updates/classification/#important"
      },
      {
        "category": "external",
        "summary": "1354708",
        "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1354708"
      },
      {
        "category": "self",
        "summary": "Canonical URL",
        "url": "https://security.access.redhat.com/data/csaf/v2/advisories/2016/rhsa-2016_1631.json"
      }
    ],
    "title": "Red Hat Security Advisory: realtime-kernel security and bug fix update",
    "tracking": {
      "current_release_date": "2026-02-26T20:21:29+00:00",
      "generator": {
        "date": "2026-02-26T20:21:29+00:00",
        "engine": {
          "name": "Red Hat SDEngine",
          "version": "4.7.1"
        }
      },
      "id": "RHSA-2016:1631",
      "initial_release_date": "2016-08-18T18:22:19+00:00",
      "revision_history": [
        {
          "date": "2016-08-18T18:22:19+00:00",
          "number": "1",
          "summary": "Initial version"
        },
        {
          "date": "2016-08-18T18:22:19+00:00",
          "number": "2",
          "summary": "Last updated version"
        },
        {
          "date": "2026-02-26T20:21:29+00:00",
          "number": "3",
          "summary": "Last generated version"
        }
      ],
      "status": "final",
      "version": "3"
    }
  },
  "product_tree": {
    "branches": [
      {
        "branches": [
          {
            "branches": [
              {
                "category": "product_name",
                "name": "Red Hat MRG Realtime for RHEL 6 Server v.2",
                "product": {
                  "name": "Red Hat MRG Realtime for RHEL 6 Server v.2",
                  "product_id": "6Server-MRG-Realtime-2",
                  "product_identification_helper": {
                    "cpe": "cpe:/a:redhat:enterprise_mrg:2:server:el6"
                  }
                }
              }
            ],
            "category": "product_family",
            "name": "Red Hat Enterprise MRG for RHEL-6"
          },
          {
            "branches": [
              {
                "category": "product_version",
                "name": "kernel-rt-trace-debuginfo-1:3.10.0-327.rt56.195.el6rt.x86_64",
                "product": {
                  "name": "kernel-rt-trace-debuginfo-1:3.10.0-327.rt56.195.el6rt.x86_64",
                  "product_id": "kernel-rt-trace-debuginfo-1:3.10.0-327.rt56.195.el6rt.x86_64",
                  "product_identification_helper": {
                    "purl": "pkg:rpm/redhat/kernel-rt-trace-debuginfo@3.10.0-327.rt56.195.el6rt?arch=x86_64\u0026epoch=1"
                  }
                }
              },
              {
                "category": "product_version",
                "name": "kernel-rt-debug-devel-1:3.10.0-327.rt56.195.el6rt.x86_64",
                "product": {
                  "name": "kernel-rt-debug-devel-1:3.10.0-327.rt56.195.el6rt.x86_64",
                  "product_id": "kernel-rt-debug-devel-1:3.10.0-327.rt56.195.el6rt.x86_64",
                  "product_identification_helper": {
                    "purl": "pkg:rpm/redhat/kernel-rt-debug-devel@3.10.0-327.rt56.195.el6rt?arch=x86_64\u0026epoch=1"
                  }
                }
              },
              {
                "category": "product_version",
                "name": "kernel-rt-debuginfo-common-x86_64-1:3.10.0-327.rt56.195.el6rt.x86_64",
                "product": {
                  "name": "kernel-rt-debuginfo-common-x86_64-1:3.10.0-327.rt56.195.el6rt.x86_64",
                  "product_id": "kernel-rt-debuginfo-common-x86_64-1:3.10.0-327.rt56.195.el6rt.x86_64",
                  "product_identification_helper": {
                    "purl": "pkg:rpm/redhat/kernel-rt-debuginfo-common-x86_64@3.10.0-327.rt56.195.el6rt?arch=x86_64\u0026epoch=1"
                  }
                }
              },
              {
                "category": "product_version",
                "name": "kernel-rt-debuginfo-1:3.10.0-327.rt56.195.el6rt.x86_64",
                "product": {
                  "name": "kernel-rt-debuginfo-1:3.10.0-327.rt56.195.el6rt.x86_64",
                  "product_id": "kernel-rt-debuginfo-1:3.10.0-327.rt56.195.el6rt.x86_64",
                  "product_identification_helper": {
                    "purl": "pkg:rpm/redhat/kernel-rt-debuginfo@3.10.0-327.rt56.195.el6rt?arch=x86_64\u0026epoch=1"
                  }
                }
              },
              {
                "category": "product_version",
                "name": "kernel-rt-trace-devel-1:3.10.0-327.rt56.195.el6rt.x86_64",
                "product": {
                  "name": "kernel-rt-trace-devel-1:3.10.0-327.rt56.195.el6rt.x86_64",
                  "product_id": "kernel-rt-trace-devel-1:3.10.0-327.rt56.195.el6rt.x86_64",
                  "product_identification_helper": {
                    "purl": "pkg:rpm/redhat/kernel-rt-trace-devel@3.10.0-327.rt56.195.el6rt?arch=x86_64\u0026epoch=1"
                  }
                }
              },
              {
                "category": "product_version",
                "name": "kernel-rt-vanilla-debuginfo-1:3.10.0-327.rt56.195.el6rt.x86_64",
                "product": {
                  "name": "kernel-rt-vanilla-debuginfo-1:3.10.0-327.rt56.195.el6rt.x86_64",
                  "product_id": "kernel-rt-vanilla-debuginfo-1:3.10.0-327.rt56.195.el6rt.x86_64",
                  "product_identification_helper": {
                    "purl": "pkg:rpm/redhat/kernel-rt-vanilla-debuginfo@3.10.0-327.rt56.195.el6rt?arch=x86_64\u0026epoch=1"
                  }
                }
              },
              {
                "category": "product_version",
                "name": "kernel-rt-1:3.10.0-327.rt56.195.el6rt.x86_64",
                "product": {
                  "name": "kernel-rt-1:3.10.0-327.rt56.195.el6rt.x86_64",
                  "product_id": "kernel-rt-1:3.10.0-327.rt56.195.el6rt.x86_64",
                  "product_identification_helper": {
                    "purl": "pkg:rpm/redhat/kernel-rt@3.10.0-327.rt56.195.el6rt?arch=x86_64\u0026epoch=1"
                  }
                }
              },
              {
                "category": "product_version",
                "name": "kernel-rt-vanilla-1:3.10.0-327.rt56.195.el6rt.x86_64",
                "product": {
                  "name": "kernel-rt-vanilla-1:3.10.0-327.rt56.195.el6rt.x86_64",
                  "product_id": "kernel-rt-vanilla-1:3.10.0-327.rt56.195.el6rt.x86_64",
                  "product_identification_helper": {
                    "purl": "pkg:rpm/redhat/kernel-rt-vanilla@3.10.0-327.rt56.195.el6rt?arch=x86_64\u0026epoch=1"
                  }
                }
              },
              {
                "category": "product_version",
                "name": "kernel-rt-trace-1:3.10.0-327.rt56.195.el6rt.x86_64",
                "product": {
                  "name": "kernel-rt-trace-1:3.10.0-327.rt56.195.el6rt.x86_64",
                  "product_id": "kernel-rt-trace-1:3.10.0-327.rt56.195.el6rt.x86_64",
                  "product_identification_helper": {
                    "purl": "pkg:rpm/redhat/kernel-rt-trace@3.10.0-327.rt56.195.el6rt?arch=x86_64\u0026epoch=1"
                  }
                }
              },
              {
                "category": "product_version",
                "name": "kernel-rt-vanilla-devel-1:3.10.0-327.rt56.195.el6rt.x86_64",
                "product": {
                  "name": "kernel-rt-vanilla-devel-1:3.10.0-327.rt56.195.el6rt.x86_64",
                  "product_id": "kernel-rt-vanilla-devel-1:3.10.0-327.rt56.195.el6rt.x86_64",
                  "product_identification_helper": {
                    "purl": "pkg:rpm/redhat/kernel-rt-vanilla-devel@3.10.0-327.rt56.195.el6rt?arch=x86_64\u0026epoch=1"
                  }
                }
              },
              {
                "category": "product_version",
                "name": "kernel-rt-devel-1:3.10.0-327.rt56.195.el6rt.x86_64",
                "product": {
                  "name": "kernel-rt-devel-1:3.10.0-327.rt56.195.el6rt.x86_64",
                  "product_id": "kernel-rt-devel-1:3.10.0-327.rt56.195.el6rt.x86_64",
                  "product_identification_helper": {
                    "purl": "pkg:rpm/redhat/kernel-rt-devel@3.10.0-327.rt56.195.el6rt?arch=x86_64\u0026epoch=1"
                  }
                }
              },
              {
                "category": "product_version",
                "name": "kernel-rt-debug-1:3.10.0-327.rt56.195.el6rt.x86_64",
                "product": {
                  "name": "kernel-rt-debug-1:3.10.0-327.rt56.195.el6rt.x86_64",
                  "product_id": "kernel-rt-debug-1:3.10.0-327.rt56.195.el6rt.x86_64",
                  "product_identification_helper": {
                    "purl": "pkg:rpm/redhat/kernel-rt-debug@3.10.0-327.rt56.195.el6rt?arch=x86_64\u0026epoch=1"
                  }
                }
              },
              {
                "category": "product_version",
                "name": "kernel-rt-debug-debuginfo-1:3.10.0-327.rt56.195.el6rt.x86_64",
                "product": {
                  "name": "kernel-rt-debug-debuginfo-1:3.10.0-327.rt56.195.el6rt.x86_64",
                  "product_id": "kernel-rt-debug-debuginfo-1:3.10.0-327.rt56.195.el6rt.x86_64",
                  "product_identification_helper": {
                    "purl": "pkg:rpm/redhat/kernel-rt-debug-debuginfo@3.10.0-327.rt56.195.el6rt?arch=x86_64\u0026epoch=1"
                  }
                }
              }
            ],
            "category": "architecture",
            "name": "x86_64"
          },
          {
            "branches": [
              {
                "category": "product_version",
                "name": "kernel-rt-firmware-1:3.10.0-327.rt56.195.el6rt.noarch",
                "product": {
                  "name": "kernel-rt-firmware-1:3.10.0-327.rt56.195.el6rt.noarch",
                  "product_id": "kernel-rt-firmware-1:3.10.0-327.rt56.195.el6rt.noarch",
                  "product_identification_helper": {
                    "purl": "pkg:rpm/redhat/kernel-rt-firmware@3.10.0-327.rt56.195.el6rt?arch=noarch\u0026epoch=1"
                  }
                }
              },
              {
                "category": "product_version",
                "name": "kernel-rt-doc-1:3.10.0-327.rt56.195.el6rt.noarch",
                "product": {
                  "name": "kernel-rt-doc-1:3.10.0-327.rt56.195.el6rt.noarch",
                  "product_id": "kernel-rt-doc-1:3.10.0-327.rt56.195.el6rt.noarch",
                  "product_identification_helper": {
                    "purl": "pkg:rpm/redhat/kernel-rt-doc@3.10.0-327.rt56.195.el6rt?arch=noarch\u0026epoch=1"
                  }
                }
              }
            ],
            "category": "architecture",
            "name": "noarch"
          },
          {
            "branches": [
              {
                "category": "product_version",
                "name": "kernel-rt-1:3.10.0-327.rt56.195.el6rt.src",
                "product": {
                  "name": "kernel-rt-1:3.10.0-327.rt56.195.el6rt.src",
                  "product_id": "kernel-rt-1:3.10.0-327.rt56.195.el6rt.src",
                  "product_identification_helper": {
                    "purl": "pkg:rpm/redhat/kernel-rt@3.10.0-327.rt56.195.el6rt?arch=src\u0026epoch=1"
                  }
                }
              }
            ],
            "category": "architecture",
            "name": "src"
          }
        ],
        "category": "vendor",
        "name": "Red Hat"
      }
    ],
    "relationships": [
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "kernel-rt-1:3.10.0-327.rt56.195.el6rt.src as a component of Red Hat MRG Realtime for RHEL 6 Server v.2",
          "product_id": "6Server-MRG-Realtime-2:kernel-rt-1:3.10.0-327.rt56.195.el6rt.src"
        },
        "product_reference": "kernel-rt-1:3.10.0-327.rt56.195.el6rt.src",
        "relates_to_product_reference": "6Server-MRG-Realtime-2"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "kernel-rt-1:3.10.0-327.rt56.195.el6rt.x86_64 as a component of Red Hat MRG Realtime for RHEL 6 Server v.2",
          "product_id": "6Server-MRG-Realtime-2:kernel-rt-1:3.10.0-327.rt56.195.el6rt.x86_64"
        },
        "product_reference": "kernel-rt-1:3.10.0-327.rt56.195.el6rt.x86_64",
        "relates_to_product_reference": "6Server-MRG-Realtime-2"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "kernel-rt-debug-1:3.10.0-327.rt56.195.el6rt.x86_64 as a component of Red Hat MRG Realtime for RHEL 6 Server v.2",
          "product_id": "6Server-MRG-Realtime-2:kernel-rt-debug-1:3.10.0-327.rt56.195.el6rt.x86_64"
        },
        "product_reference": "kernel-rt-debug-1:3.10.0-327.rt56.195.el6rt.x86_64",
        "relates_to_product_reference": "6Server-MRG-Realtime-2"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "kernel-rt-debug-debuginfo-1:3.10.0-327.rt56.195.el6rt.x86_64 as a component of Red Hat MRG Realtime for RHEL 6 Server v.2",
          "product_id": "6Server-MRG-Realtime-2:kernel-rt-debug-debuginfo-1:3.10.0-327.rt56.195.el6rt.x86_64"
        },
        "product_reference": "kernel-rt-debug-debuginfo-1:3.10.0-327.rt56.195.el6rt.x86_64",
        "relates_to_product_reference": "6Server-MRG-Realtime-2"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "kernel-rt-debug-devel-1:3.10.0-327.rt56.195.el6rt.x86_64 as a component of Red Hat MRG Realtime for RHEL 6 Server v.2",
          "product_id": "6Server-MRG-Realtime-2:kernel-rt-debug-devel-1:3.10.0-327.rt56.195.el6rt.x86_64"
        },
        "product_reference": "kernel-rt-debug-devel-1:3.10.0-327.rt56.195.el6rt.x86_64",
        "relates_to_product_reference": "6Server-MRG-Realtime-2"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "kernel-rt-debuginfo-1:3.10.0-327.rt56.195.el6rt.x86_64 as a component of Red Hat MRG Realtime for RHEL 6 Server v.2",
          "product_id": "6Server-MRG-Realtime-2:kernel-rt-debuginfo-1:3.10.0-327.rt56.195.el6rt.x86_64"
        },
        "product_reference": "kernel-rt-debuginfo-1:3.10.0-327.rt56.195.el6rt.x86_64",
        "relates_to_product_reference": "6Server-MRG-Realtime-2"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "kernel-rt-debuginfo-common-x86_64-1:3.10.0-327.rt56.195.el6rt.x86_64 as a component of Red Hat MRG Realtime for RHEL 6 Server v.2",
          "product_id": "6Server-MRG-Realtime-2:kernel-rt-debuginfo-common-x86_64-1:3.10.0-327.rt56.195.el6rt.x86_64"
        },
        "product_reference": "kernel-rt-debuginfo-common-x86_64-1:3.10.0-327.rt56.195.el6rt.x86_64",
        "relates_to_product_reference": "6Server-MRG-Realtime-2"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "kernel-rt-devel-1:3.10.0-327.rt56.195.el6rt.x86_64 as a component of Red Hat MRG Realtime for RHEL 6 Server v.2",
          "product_id": "6Server-MRG-Realtime-2:kernel-rt-devel-1:3.10.0-327.rt56.195.el6rt.x86_64"
        },
        "product_reference": "kernel-rt-devel-1:3.10.0-327.rt56.195.el6rt.x86_64",
        "relates_to_product_reference": "6Server-MRG-Realtime-2"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "kernel-rt-doc-1:3.10.0-327.rt56.195.el6rt.noarch as a component of Red Hat MRG Realtime for RHEL 6 Server v.2",
          "product_id": "6Server-MRG-Realtime-2:kernel-rt-doc-1:3.10.0-327.rt56.195.el6rt.noarch"
        },
        "product_reference": "kernel-rt-doc-1:3.10.0-327.rt56.195.el6rt.noarch",
        "relates_to_product_reference": "6Server-MRG-Realtime-2"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "kernel-rt-firmware-1:3.10.0-327.rt56.195.el6rt.noarch as a component of Red Hat MRG Realtime for RHEL 6 Server v.2",
          "product_id": "6Server-MRG-Realtime-2:kernel-rt-firmware-1:3.10.0-327.rt56.195.el6rt.noarch"
        },
        "product_reference": "kernel-rt-firmware-1:3.10.0-327.rt56.195.el6rt.noarch",
        "relates_to_product_reference": "6Server-MRG-Realtime-2"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "kernel-rt-trace-1:3.10.0-327.rt56.195.el6rt.x86_64 as a component of Red Hat MRG Realtime for RHEL 6 Server v.2",
          "product_id": "6Server-MRG-Realtime-2:kernel-rt-trace-1:3.10.0-327.rt56.195.el6rt.x86_64"
        },
        "product_reference": "kernel-rt-trace-1:3.10.0-327.rt56.195.el6rt.x86_64",
        "relates_to_product_reference": "6Server-MRG-Realtime-2"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "kernel-rt-trace-debuginfo-1:3.10.0-327.rt56.195.el6rt.x86_64 as a component of Red Hat MRG Realtime for RHEL 6 Server v.2",
          "product_id": "6Server-MRG-Realtime-2:kernel-rt-trace-debuginfo-1:3.10.0-327.rt56.195.el6rt.x86_64"
        },
        "product_reference": "kernel-rt-trace-debuginfo-1:3.10.0-327.rt56.195.el6rt.x86_64",
        "relates_to_product_reference": "6Server-MRG-Realtime-2"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "kernel-rt-trace-devel-1:3.10.0-327.rt56.195.el6rt.x86_64 as a component of Red Hat MRG Realtime for RHEL 6 Server v.2",
          "product_id": "6Server-MRG-Realtime-2:kernel-rt-trace-devel-1:3.10.0-327.rt56.195.el6rt.x86_64"
        },
        "product_reference": "kernel-rt-trace-devel-1:3.10.0-327.rt56.195.el6rt.x86_64",
        "relates_to_product_reference": "6Server-MRG-Realtime-2"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "kernel-rt-vanilla-1:3.10.0-327.rt56.195.el6rt.x86_64 as a component of Red Hat MRG Realtime for RHEL 6 Server v.2",
          "product_id": "6Server-MRG-Realtime-2:kernel-rt-vanilla-1:3.10.0-327.rt56.195.el6rt.x86_64"
        },
        "product_reference": "kernel-rt-vanilla-1:3.10.0-327.rt56.195.el6rt.x86_64",
        "relates_to_product_reference": "6Server-MRG-Realtime-2"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "kernel-rt-vanilla-debuginfo-1:3.10.0-327.rt56.195.el6rt.x86_64 as a component of Red Hat MRG Realtime for RHEL 6 Server v.2",
          "product_id": "6Server-MRG-Realtime-2:kernel-rt-vanilla-debuginfo-1:3.10.0-327.rt56.195.el6rt.x86_64"
        },
        "product_reference": "kernel-rt-vanilla-debuginfo-1:3.10.0-327.rt56.195.el6rt.x86_64",
        "relates_to_product_reference": "6Server-MRG-Realtime-2"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "kernel-rt-vanilla-devel-1:3.10.0-327.rt56.195.el6rt.x86_64 as a component of Red Hat MRG Realtime for RHEL 6 Server v.2",
          "product_id": "6Server-MRG-Realtime-2:kernel-rt-vanilla-devel-1:3.10.0-327.rt56.195.el6rt.x86_64"
        },
        "product_reference": "kernel-rt-vanilla-devel-1:3.10.0-327.rt56.195.el6rt.x86_64",
        "relates_to_product_reference": "6Server-MRG-Realtime-2"
      }
    ]
  },
  "vulnerabilities": [
    {
      "acknowledgments": [
        {
          "names": [
            "Yue Cao"
          ],
          "organization": "Cyber Security Group of the CS department of University of California in Riverside"
        }
      ],
      "cve": "CVE-2016-5696",
      "cwe": {
        "id": "CWE-203",
        "name": "Observable Discrepancy"
      },
      "discovery_date": "2016-07-12T00:00:00+00:00",
      "ids": [
        {
          "system_name": "Red Hat Bugzilla ID",
          "text": "1354708"
        }
      ],
      "notes": [
        {
          "category": "description",
          "text": "It was found that the RFC 5961 challenge ACK rate limiting as implemented in the Linux kernel\u0027s networking subsystem allowed an off-path attacker to leak certain information about a given connection by creating congestion on the global challenge ACK rate limit counter and then measuring the changes by probing packets. An off-path attacker could use this flaw to either terminate TCP connection and/or inject payload into non-secured TCP connection between two endpoints on the network.",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "kernel: challenge ACK counter information disclosure.",
          "title": "Vulnerability summary"
        },
        {
          "category": "other",
          "text": "This issue does not affect the Linux kernels as shipped with Red Hat Enterprise Linux 4 and 5.",
          "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-MRG-Realtime-2:kernel-rt-1:3.10.0-327.rt56.195.el6rt.src",
          "6Server-MRG-Realtime-2:kernel-rt-1:3.10.0-327.rt56.195.el6rt.x86_64",
          "6Server-MRG-Realtime-2:kernel-rt-debug-1:3.10.0-327.rt56.195.el6rt.x86_64",
          "6Server-MRG-Realtime-2:kernel-rt-debug-debuginfo-1:3.10.0-327.rt56.195.el6rt.x86_64",
          "6Server-MRG-Realtime-2:kernel-rt-debug-devel-1:3.10.0-327.rt56.195.el6rt.x86_64",
          "6Server-MRG-Realtime-2:kernel-rt-debuginfo-1:3.10.0-327.rt56.195.el6rt.x86_64",
          "6Server-MRG-Realtime-2:kernel-rt-debuginfo-common-x86_64-1:3.10.0-327.rt56.195.el6rt.x86_64",
          "6Server-MRG-Realtime-2:kernel-rt-devel-1:3.10.0-327.rt56.195.el6rt.x86_64",
          "6Server-MRG-Realtime-2:kernel-rt-doc-1:3.10.0-327.rt56.195.el6rt.noarch",
          "6Server-MRG-Realtime-2:kernel-rt-firmware-1:3.10.0-327.rt56.195.el6rt.noarch",
          "6Server-MRG-Realtime-2:kernel-rt-trace-1:3.10.0-327.rt56.195.el6rt.x86_64",
          "6Server-MRG-Realtime-2:kernel-rt-trace-debuginfo-1:3.10.0-327.rt56.195.el6rt.x86_64",
          "6Server-MRG-Realtime-2:kernel-rt-trace-devel-1:3.10.0-327.rt56.195.el6rt.x86_64",
          "6Server-MRG-Realtime-2:kernel-rt-vanilla-1:3.10.0-327.rt56.195.el6rt.x86_64",
          "6Server-MRG-Realtime-2:kernel-rt-vanilla-debuginfo-1:3.10.0-327.rt56.195.el6rt.x86_64",
          "6Server-MRG-Realtime-2:kernel-rt-vanilla-devel-1:3.10.0-327.rt56.195.el6rt.x86_64"
        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "Canonical URL",
          "url": "https://access.redhat.com/security/cve/CVE-2016-5696"
        },
        {
          "category": "external",
          "summary": "RHBZ#1354708",
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1354708"
        },
        {
          "category": "external",
          "summary": "https://www.cve.org/CVERecord?id=CVE-2016-5696",
          "url": "https://www.cve.org/CVERecord?id=CVE-2016-5696"
        },
        {
          "category": "external",
          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2016-5696",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2016-5696"
        },
        {
          "category": "external",
          "summary": "http://lwn.net/Articles/696868/",
          "url": "http://lwn.net/Articles/696868/"
        }
      ],
      "release_date": "2016-07-12T00:00:00+00:00",
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2016-08-18T18:22:19+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-MRG-Realtime-2:kernel-rt-1:3.10.0-327.rt56.195.el6rt.src",
            "6Server-MRG-Realtime-2:kernel-rt-1:3.10.0-327.rt56.195.el6rt.x86_64",
            "6Server-MRG-Realtime-2:kernel-rt-debug-1:3.10.0-327.rt56.195.el6rt.x86_64",
            "6Server-MRG-Realtime-2:kernel-rt-debug-debuginfo-1:3.10.0-327.rt56.195.el6rt.x86_64",
            "6Server-MRG-Realtime-2:kernel-rt-debug-devel-1:3.10.0-327.rt56.195.el6rt.x86_64",
            "6Server-MRG-Realtime-2:kernel-rt-debuginfo-1:3.10.0-327.rt56.195.el6rt.x86_64",
            "6Server-MRG-Realtime-2:kernel-rt-debuginfo-common-x86_64-1:3.10.0-327.rt56.195.el6rt.x86_64",
            "6Server-MRG-Realtime-2:kernel-rt-devel-1:3.10.0-327.rt56.195.el6rt.x86_64",
            "6Server-MRG-Realtime-2:kernel-rt-doc-1:3.10.0-327.rt56.195.el6rt.noarch",
            "6Server-MRG-Realtime-2:kernel-rt-firmware-1:3.10.0-327.rt56.195.el6rt.noarch",
            "6Server-MRG-Realtime-2:kernel-rt-trace-1:3.10.0-327.rt56.195.el6rt.x86_64",
            "6Server-MRG-Realtime-2:kernel-rt-trace-debuginfo-1:3.10.0-327.rt56.195.el6rt.x86_64",
            "6Server-MRG-Realtime-2:kernel-rt-trace-devel-1:3.10.0-327.rt56.195.el6rt.x86_64",
            "6Server-MRG-Realtime-2:kernel-rt-vanilla-1:3.10.0-327.rt56.195.el6rt.x86_64",
            "6Server-MRG-Realtime-2:kernel-rt-vanilla-debuginfo-1:3.10.0-327.rt56.195.el6rt.x86_64",
            "6Server-MRG-Realtime-2:kernel-rt-vanilla-devel-1:3.10.0-327.rt56.195.el6rt.x86_64"
          ],
          "restart_required": {
            "category": "none"
          },
          "url": "https://access.redhat.com/errata/RHSA-2016:1631"
        }
      ],
      "scores": [
        {
          "cvss_v2": {
            "accessComplexity": "MEDIUM",
            "accessVector": "NETWORK",
            "authentication": "NONE",
            "availabilityImpact": "PARTIAL",
            "baseScore": 5.8,
            "confidentialityImpact": "NONE",
            "integrityImpact": "PARTIAL",
            "vectorString": "AV:N/AC:M/Au:N/C:N/I:P/A:P",
            "version": "2.0"
          },
          "cvss_v3": {
            "attackComplexity": "HIGH",
            "attackVector": "NETWORK",
            "availabilityImpact": "LOW",
            "baseScore": 4.8,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "integrityImpact": "LOW",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:L",
            "version": "3.0"
          },
          "products": [
            "6Server-MRG-Realtime-2:kernel-rt-1:3.10.0-327.rt56.195.el6rt.src",
            "6Server-MRG-Realtime-2:kernel-rt-1:3.10.0-327.rt56.195.el6rt.x86_64",
            "6Server-MRG-Realtime-2:kernel-rt-debug-1:3.10.0-327.rt56.195.el6rt.x86_64",
            "6Server-MRG-Realtime-2:kernel-rt-debug-debuginfo-1:3.10.0-327.rt56.195.el6rt.x86_64",
            "6Server-MRG-Realtime-2:kernel-rt-debug-devel-1:3.10.0-327.rt56.195.el6rt.x86_64",
            "6Server-MRG-Realtime-2:kernel-rt-debuginfo-1:3.10.0-327.rt56.195.el6rt.x86_64",
            "6Server-MRG-Realtime-2:kernel-rt-debuginfo-common-x86_64-1:3.10.0-327.rt56.195.el6rt.x86_64",
            "6Server-MRG-Realtime-2:kernel-rt-devel-1:3.10.0-327.rt56.195.el6rt.x86_64",
            "6Server-MRG-Realtime-2:kernel-rt-doc-1:3.10.0-327.rt56.195.el6rt.noarch",
            "6Server-MRG-Realtime-2:kernel-rt-firmware-1:3.10.0-327.rt56.195.el6rt.noarch",
            "6Server-MRG-Realtime-2:kernel-rt-trace-1:3.10.0-327.rt56.195.el6rt.x86_64",
            "6Server-MRG-Realtime-2:kernel-rt-trace-debuginfo-1:3.10.0-327.rt56.195.el6rt.x86_64",
            "6Server-MRG-Realtime-2:kernel-rt-trace-devel-1:3.10.0-327.rt56.195.el6rt.x86_64",
            "6Server-MRG-Realtime-2:kernel-rt-vanilla-1:3.10.0-327.rt56.195.el6rt.x86_64",
            "6Server-MRG-Realtime-2:kernel-rt-vanilla-debuginfo-1:3.10.0-327.rt56.195.el6rt.x86_64",
            "6Server-MRG-Realtime-2:kernel-rt-vanilla-devel-1:3.10.0-327.rt56.195.el6rt.x86_64"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Important"
        }
      ],
      "title": "kernel: challenge ACK counter information disclosure."
    }
  ]
}

CVE-2016-5696 (GCVE-0-2016-5696)

Vulnerability from cvelistv5 – Published: 2016-08-06 20:00 – Updated: 2024-08-06 01:08

Summary

net/ipv4/tcp_input.c in the Linux kernel before 4.7 does not properly determine the rate of challenge ACK segments, which makes it easier for remote attackers to hijack TCP sessions via a blind in-window attack.

Severity ?

No CVSS data available.

CWE

Assigner

mitre

References

URL

Tags

	http://www.oracle.com/technetwork/topics/security…	x_refsource_CONFIRM
	https://github.com/Gnoxter/mountain_goat	x_refsource_MISC
	http://www.ubuntu.com/usn/USN-3070-1	vendor-advisoryx_refsource_UBUNTU
	http://rhn.redhat.com/errata/RHSA-2016-1657.html	vendor-advisoryx_refsource_REDHAT
	https://bto.bluecoat.com/security-advisory/sa131	x_refsource_CONFIRM
	https://github.com/torvalds/linux/commit/75ff39cc…	x_refsource_CONFIRM
	http://www.oracle.com/technetwork/topics/security…	x_refsource_CONFIRM
	http://rhn.redhat.com/errata/RHSA-2016-1814.html	vendor-advisoryx_refsource_REDHAT
	https://kc.mcafee.com/corporate/index?page=conten…	x_refsource_CONFIRM
	http://source.android.com/security/bulletin/2016-…	x_refsource_CONFIRM
	http://www.securityfocus.com/bid/91704	vdb-entryx_refsource_BID
	http://www.ubuntu.com/usn/USN-3070-3	vendor-advisoryx_refsource_UBUNTU
	http://www.ubuntu.com/usn/USN-3070-2	vendor-advisoryx_refsource_UBUNTU
	http://rhn.redhat.com/errata/RHSA-2016-1815.html	vendor-advisoryx_refsource_REDHAT
	http://rhn.redhat.com/errata/RHSA-2016-1939.html	vendor-advisoryx_refsource_REDHAT
	http://www.ubuntu.com/usn/USN-3071-1	vendor-advisoryx_refsource_UBUNTU
	http://rhn.redhat.com/errata/RHSA-2016-1632.html	vendor-advisoryx_refsource_REDHAT
	https://www.usenix.org/system/files/conference/us…	x_refsource_MISC
	http://git.kernel.org/cgit/linux/kernel/git/torva…	x_refsource_CONFIRM
	http://www.ubuntu.com/usn/USN-3070-4	vendor-advisoryx_refsource_UBUNTU
	http://www.securitytracker.com/id/1036625	vdb-entryx_refsource_SECTRACK
	http://rhn.redhat.com/errata/RHSA-2016-1631.html	vendor-advisoryx_refsource_REDHAT
	https://bugzilla.redhat.com/show_bug.cgi?id=1354708	x_refsource_CONFIRM
	http://www.ubuntu.com/usn/USN-3072-2	vendor-advisoryx_refsource_UBUNTU
	http://rhn.redhat.com/errata/RHSA-2016-1633.html	vendor-advisoryx_refsource_REDHAT
	http://rhn.redhat.com/errata/RHSA-2016-1664.html	vendor-advisoryx_refsource_REDHAT
	http://www.ubuntu.com/usn/USN-3072-1	vendor-advisoryx_refsource_UBUNTU
	http://www.prnewswire.com/news-releases/mitnick-a…	x_refsource_MISC
	http://www.openwall.com/lists/oss-security/2016/07/12/2	mailing-listx_refsource_MLIST
	http://www.ubuntu.com/usn/USN-3071-2	vendor-advisoryx_refsource_UBUNTU
	https://security.paloaltonetworks.com/CVE-2016-5696	x_refsource_CONFIRM
	https://www.arista.com/en/support/advisories-noti…	x_refsource_MISC

Date Public ?

2016-07-12 00:00

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-06T01:08:00.657Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "http://www.oracle.com/technetwork/topics/security/ovmbulletinjul2016-3090546.html"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://github.com/Gnoxter/mountain_goat"
          },
          {
            "name": "USN-3070-1",
            "tags": [
              "vendor-advisory",
              "x_refsource_UBUNTU",
              "x_transferred"
            ],
            "url": "http://www.ubuntu.com/usn/USN-3070-1"
          },
          {
            "name": "RHSA-2016:1657",
            "tags": [
              "vendor-advisory",
              "x_refsource_REDHAT",
              "x_transferred"
            ],
            "url": "http://rhn.redhat.com/errata/RHSA-2016-1657.html"
          },
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "https://bto.bluecoat.com/security-advisory/sa131"
          },
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "https://github.com/torvalds/linux/commit/75ff39ccc1bd5d3c455b6822ab09e533c551f758"
          },
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "http://www.oracle.com/technetwork/topics/security/linuxbulletinjul2016-3090544.html"
          },
          {
            "name": "RHSA-2016:1814",
            "tags": [
              "vendor-advisory",
              "x_refsource_REDHAT",
              "x_transferred"
            ],
            "url": "http://rhn.redhat.com/errata/RHSA-2016-1814.html"
          },
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "https://kc.mcafee.com/corporate/index?page=content\u0026id=SB10167"
          },
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "http://source.android.com/security/bulletin/2016-10-01.html"
          },
          {
            "name": "91704",
            "tags": [
              "vdb-entry",
              "x_refsource_BID",
              "x_transferred"
            ],
            "url": "http://www.securityfocus.com/bid/91704"
          },
          {
            "name": "USN-3070-3",
            "tags": [
              "vendor-advisory",
              "x_refsource_UBUNTU",
              "x_transferred"
            ],
            "url": "http://www.ubuntu.com/usn/USN-3070-3"
          },
          {
            "name": "USN-3070-2",
            "tags": [
              "vendor-advisory",
              "x_refsource_UBUNTU",
              "x_transferred"
            ],
            "url": "http://www.ubuntu.com/usn/USN-3070-2"
          },
          {
            "name": "RHSA-2016:1815",
            "tags": [
              "vendor-advisory",
              "x_refsource_REDHAT",
              "x_transferred"
            ],
            "url": "http://rhn.redhat.com/errata/RHSA-2016-1815.html"
          },
          {
            "name": "RHSA-2016:1939",
            "tags": [
              "vendor-advisory",
              "x_refsource_REDHAT",
              "x_transferred"
            ],
            "url": "http://rhn.redhat.com/errata/RHSA-2016-1939.html"
          },
          {
            "name": "USN-3071-1",
            "tags": [
              "vendor-advisory",
              "x_refsource_UBUNTU",
              "x_transferred"
            ],
            "url": "http://www.ubuntu.com/usn/USN-3071-1"
          },
          {
            "name": "RHSA-2016:1632",
            "tags": [
              "vendor-advisory",
              "x_refsource_REDHAT",
              "x_transferred"
            ],
            "url": "http://rhn.redhat.com/errata/RHSA-2016-1632.html"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://www.usenix.org/system/files/conference/usenixsecurity16/sec16_paper_cao.pdf"
          },
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=75ff39ccc1bd5d3c455b6822ab09e533c551f758"
          },
          {
            "name": "USN-3070-4",
            "tags": [
              "vendor-advisory",
              "x_refsource_UBUNTU",
              "x_transferred"
            ],
            "url": "http://www.ubuntu.com/usn/USN-3070-4"
          },
          {
            "name": "1036625",
            "tags": [
              "vdb-entry",
              "x_refsource_SECTRACK",
              "x_transferred"
            ],
            "url": "http://www.securitytracker.com/id/1036625"
          },
          {
            "name": "RHSA-2016:1631",
            "tags": [
              "vendor-advisory",
              "x_refsource_REDHAT",
              "x_transferred"
            ],
            "url": "http://rhn.redhat.com/errata/RHSA-2016-1631.html"
          },
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1354708"
          },
          {
            "name": "USN-3072-2",
            "tags": [
              "vendor-advisory",
              "x_refsource_UBUNTU",
              "x_transferred"
            ],
            "url": "http://www.ubuntu.com/usn/USN-3072-2"
          },
          {
            "name": "RHSA-2016:1633",
            "tags": [
              "vendor-advisory",
              "x_refsource_REDHAT",
              "x_transferred"
            ],
            "url": "http://rhn.redhat.com/errata/RHSA-2016-1633.html"
          },
          {
            "name": "RHSA-2016:1664",
            "tags": [
              "vendor-advisory",
              "x_refsource_REDHAT",
              "x_transferred"
            ],
            "url": "http://rhn.redhat.com/errata/RHSA-2016-1664.html"
          },
          {
            "name": "USN-3072-1",
            "tags": [
              "vendor-advisory",
              "x_refsource_UBUNTU",
              "x_transferred"
            ],
            "url": "http://www.ubuntu.com/usn/USN-3072-1"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "http://www.prnewswire.com/news-releases/mitnick-attack-reappears-at-geekpwn-macau-contest-300270779.html"
          },
          {
            "name": "[oss-security] 20160712 Re: CVE-2016-5389: linux kernel - challange ack information leak.",
            "tags": [
              "mailing-list",
              "x_refsource_MLIST",
              "x_transferred"
            ],
            "url": "http://www.openwall.com/lists/oss-security/2016/07/12/2"
          },
          {
            "name": "USN-3071-2",
            "tags": [
              "vendor-advisory",
              "x_refsource_UBUNTU",
              "x_transferred"
            ],
            "url": "http://www.ubuntu.com/usn/USN-3071-2"
          },
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "https://security.paloaltonetworks.com/CVE-2016-5696"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://www.arista.com/en/support/advisories-notices/security-advisories/1461-security-advisory-23"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "n/a",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ],
      "datePublic": "2016-07-12T00:00:00.000Z",
      "descriptions": [
        {
          "lang": "en",
          "value": "net/ipv4/tcp_input.c in the Linux kernel before 4.7 does not properly determine the rate of challenge ACK segments, which makes it easier for remote attackers to hijack TCP sessions via a blind in-window attack."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "n/a",
              "lang": "en",
              "type": "text"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2021-11-05T17:29:51.000Z",
        "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
        "shortName": "mitre"
      },
      "references": [
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "http://www.oracle.com/technetwork/topics/security/ovmbulletinjul2016-3090546.html"
        },
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/Gnoxter/mountain_goat"
        },
        {
          "name": "USN-3070-1",
          "tags": [
            "vendor-advisory",
            "x_refsource_UBUNTU"
          ],
          "url": "http://www.ubuntu.com/usn/USN-3070-1"
        },
        {
          "name": "RHSA-2016:1657",
          "tags": [
            "vendor-advisory",
            "x_refsource_REDHAT"
          ],
          "url": "http://rhn.redhat.com/errata/RHSA-2016-1657.html"
        },
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://bto.bluecoat.com/security-advisory/sa131"
        },
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/torvalds/linux/commit/75ff39ccc1bd5d3c455b6822ab09e533c551f758"
        },
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "http://www.oracle.com/technetwork/topics/security/linuxbulletinjul2016-3090544.html"
        },
        {
          "name": "RHSA-2016:1814",
          "tags": [
            "vendor-advisory",
            "x_refsource_REDHAT"
          ],
          "url": "http://rhn.redhat.com/errata/RHSA-2016-1814.html"
        },
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://kc.mcafee.com/corporate/index?page=content\u0026id=SB10167"
        },
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "http://source.android.com/security/bulletin/2016-10-01.html"
        },
        {
          "name": "91704",
          "tags": [
            "vdb-entry",
            "x_refsource_BID"
          ],
          "url": "http://www.securityfocus.com/bid/91704"
        },
        {
          "name": "USN-3070-3",
          "tags": [
            "vendor-advisory",
            "x_refsource_UBUNTU"
          ],
          "url": "http://www.ubuntu.com/usn/USN-3070-3"
        },
        {
          "name": "USN-3070-2",
          "tags": [
            "vendor-advisory",
            "x_refsource_UBUNTU"
          ],
          "url": "http://www.ubuntu.com/usn/USN-3070-2"
        },
        {
          "name": "RHSA-2016:1815",
          "tags": [
            "vendor-advisory",
            "x_refsource_REDHAT"
          ],
          "url": "http://rhn.redhat.com/errata/RHSA-2016-1815.html"
        },
        {
          "name": "RHSA-2016:1939",
          "tags": [
            "vendor-advisory",
            "x_refsource_REDHAT"
          ],
          "url": "http://rhn.redhat.com/errata/RHSA-2016-1939.html"
        },
        {
          "name": "USN-3071-1",
          "tags": [
            "vendor-advisory",
            "x_refsource_UBUNTU"
          ],
          "url": "http://www.ubuntu.com/usn/USN-3071-1"
        },
        {
          "name": "RHSA-2016:1632",
          "tags": [
            "vendor-advisory",
            "x_refsource_REDHAT"
          ],
          "url": "http://rhn.redhat.com/errata/RHSA-2016-1632.html"
        },
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://www.usenix.org/system/files/conference/usenixsecurity16/sec16_paper_cao.pdf"
        },
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=75ff39ccc1bd5d3c455b6822ab09e533c551f758"
        },
        {
          "name": "USN-3070-4",
          "tags": [
            "vendor-advisory",
            "x_refsource_UBUNTU"
          ],
          "url": "http://www.ubuntu.com/usn/USN-3070-4"
        },
        {
          "name": "1036625",
          "tags": [
            "vdb-entry",
            "x_refsource_SECTRACK"
          ],
          "url": "http://www.securitytracker.com/id/1036625"
        },
        {
          "name": "RHSA-2016:1631",
          "tags": [
            "vendor-advisory",
            "x_refsource_REDHAT"
          ],
          "url": "http://rhn.redhat.com/errata/RHSA-2016-1631.html"
        },
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1354708"
        },
        {
          "name": "USN-3072-2",
          "tags": [
            "vendor-advisory",
            "x_refsource_UBUNTU"
          ],
          "url": "http://www.ubuntu.com/usn/USN-3072-2"
        },
        {
          "name": "RHSA-2016:1633",
          "tags": [
            "vendor-advisory",
            "x_refsource_REDHAT"
          ],
          "url": "http://rhn.redhat.com/errata/RHSA-2016-1633.html"
        },
        {
          "name": "RHSA-2016:1664",
          "tags": [
            "vendor-advisory",
            "x_refsource_REDHAT"
          ],
          "url": "http://rhn.redhat.com/errata/RHSA-2016-1664.html"
        },
        {
          "name": "USN-3072-1",
          "tags": [
            "vendor-advisory",
            "x_refsource_UBUNTU"
          ],
          "url": "http://www.ubuntu.com/usn/USN-3072-1"
        },
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "http://www.prnewswire.com/news-releases/mitnick-attack-reappears-at-geekpwn-macau-contest-300270779.html"
        },
        {
          "name": "[oss-security] 20160712 Re: CVE-2016-5389: linux kernel - challange ack information leak.",
          "tags": [
            "mailing-list",
            "x_refsource_MLIST"
          ],
          "url": "http://www.openwall.com/lists/oss-security/2016/07/12/2"
        },
        {
          "name": "USN-3071-2",
          "tags": [
            "vendor-advisory",
            "x_refsource_UBUNTU"
          ],
          "url": "http://www.ubuntu.com/usn/USN-3071-2"
        },
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://security.paloaltonetworks.com/CVE-2016-5696"
        },
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://www.arista.com/en/support/advisories-notices/security-advisories/1461-security-advisory-23"
        }
      ],
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "cve@mitre.org",
          "ID": "CVE-2016-5696",
          "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": "net/ipv4/tcp_input.c in the Linux kernel before 4.7 does not properly determine the rate of challenge ACK segments, which makes it easier for remote attackers to hijack TCP sessions via a blind in-window attack."
            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "eng",
                  "value": "n/a"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "http://www.oracle.com/technetwork/topics/security/ovmbulletinjul2016-3090546.html",
              "refsource": "CONFIRM",
              "url": "http://www.oracle.com/technetwork/topics/security/ovmbulletinjul2016-3090546.html"
            },
            {
              "name": "https://github.com/Gnoxter/mountain_goat",
              "refsource": "MISC",
              "url": "https://github.com/Gnoxter/mountain_goat"
            },
            {
              "name": "USN-3070-1",
              "refsource": "UBUNTU",
              "url": "http://www.ubuntu.com/usn/USN-3070-1"
            },
            {
              "name": "RHSA-2016:1657",
              "refsource": "REDHAT",
              "url": "http://rhn.redhat.com/errata/RHSA-2016-1657.html"
            },
            {
              "name": "https://bto.bluecoat.com/security-advisory/sa131",
              "refsource": "CONFIRM",
              "url": "https://bto.bluecoat.com/security-advisory/sa131"
            },
            {
              "name": "https://github.com/torvalds/linux/commit/75ff39ccc1bd5d3c455b6822ab09e533c551f758",
              "refsource": "CONFIRM",
              "url": "https://github.com/torvalds/linux/commit/75ff39ccc1bd5d3c455b6822ab09e533c551f758"
            },
            {
              "name": "http://www.oracle.com/technetwork/topics/security/linuxbulletinjul2016-3090544.html",
              "refsource": "CONFIRM",
              "url": "http://www.oracle.com/technetwork/topics/security/linuxbulletinjul2016-3090544.html"
            },
            {
              "name": "RHSA-2016:1814",
              "refsource": "REDHAT",
              "url": "http://rhn.redhat.com/errata/RHSA-2016-1814.html"
            },
            {
              "name": "https://kc.mcafee.com/corporate/index?page=content\u0026id=SB10167",
              "refsource": "CONFIRM",
              "url": "https://kc.mcafee.com/corporate/index?page=content\u0026id=SB10167"
            },
            {
              "name": "http://source.android.com/security/bulletin/2016-10-01.html",
              "refsource": "CONFIRM",
              "url": "http://source.android.com/security/bulletin/2016-10-01.html"
            },
            {
              "name": "91704",
              "refsource": "BID",
              "url": "http://www.securityfocus.com/bid/91704"
            },
            {
              "name": "USN-3070-3",
              "refsource": "UBUNTU",
              "url": "http://www.ubuntu.com/usn/USN-3070-3"
            },
            {
              "name": "USN-3070-2",
              "refsource": "UBUNTU",
              "url": "http://www.ubuntu.com/usn/USN-3070-2"
            },
            {
              "name": "RHSA-2016:1815",
              "refsource": "REDHAT",
              "url": "http://rhn.redhat.com/errata/RHSA-2016-1815.html"
            },
            {
              "name": "RHSA-2016:1939",
              "refsource": "REDHAT",
              "url": "http://rhn.redhat.com/errata/RHSA-2016-1939.html"
            },
            {
              "name": "USN-3071-1",
              "refsource": "UBUNTU",
              "url": "http://www.ubuntu.com/usn/USN-3071-1"
            },
            {
              "name": "RHSA-2016:1632",
              "refsource": "REDHAT",
              "url": "http://rhn.redhat.com/errata/RHSA-2016-1632.html"
            },
            {
              "name": "https://www.usenix.org/system/files/conference/usenixsecurity16/sec16_paper_cao.pdf",
              "refsource": "MISC",
              "url": "https://www.usenix.org/system/files/conference/usenixsecurity16/sec16_paper_cao.pdf"
            },
            {
              "name": "http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=75ff39ccc1bd5d3c455b6822ab09e533c551f758",
              "refsource": "CONFIRM",
              "url": "http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=75ff39ccc1bd5d3c455b6822ab09e533c551f758"
            },
            {
              "name": "USN-3070-4",
              "refsource": "UBUNTU",
              "url": "http://www.ubuntu.com/usn/USN-3070-4"
            },
            {
              "name": "1036625",
              "refsource": "SECTRACK",
              "url": "http://www.securitytracker.com/id/1036625"
            },
            {
              "name": "RHSA-2016:1631",
              "refsource": "REDHAT",
              "url": "http://rhn.redhat.com/errata/RHSA-2016-1631.html"
            },
            {
              "name": "https://bugzilla.redhat.com/show_bug.cgi?id=1354708",
              "refsource": "CONFIRM",
              "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1354708"
            },
            {
              "name": "USN-3072-2",
              "refsource": "UBUNTU",
              "url": "http://www.ubuntu.com/usn/USN-3072-2"
            },
            {
              "name": "RHSA-2016:1633",
              "refsource": "REDHAT",
              "url": "http://rhn.redhat.com/errata/RHSA-2016-1633.html"
            },
            {
              "name": "RHSA-2016:1664",
              "refsource": "REDHAT",
              "url": "http://rhn.redhat.com/errata/RHSA-2016-1664.html"
            },
            {
              "name": "USN-3072-1",
              "refsource": "UBUNTU",
              "url": "http://www.ubuntu.com/usn/USN-3072-1"
            },
            {
              "name": "http://www.prnewswire.com/news-releases/mitnick-attack-reappears-at-geekpwn-macau-contest-300270779.html",
              "refsource": "MISC",
              "url": "http://www.prnewswire.com/news-releases/mitnick-attack-reappears-at-geekpwn-macau-contest-300270779.html"
            },
            {
              "name": "[oss-security] 20160712 Re: CVE-2016-5389: linux kernel - challange ack information leak.",
              "refsource": "MLIST",
              "url": "http://www.openwall.com/lists/oss-security/2016/07/12/2"
            },
            {
              "name": "USN-3071-2",
              "refsource": "UBUNTU",
              "url": "http://www.ubuntu.com/usn/USN-3071-2"
            },
            {
              "name": "https://security.paloaltonetworks.com/CVE-2016-5696",
              "refsource": "CONFIRM",
              "url": "https://security.paloaltonetworks.com/CVE-2016-5696"
            },
            {
              "name": "https://www.arista.com/en/support/advisories-notices/security-advisories/1461-security-advisory-23",
              "refsource": "MISC",
              "url": "https://www.arista.com/en/support/advisories-notices/security-advisories/1461-security-advisory-23"
            }
          ]
        }
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
    "assignerShortName": "mitre",
    "cveId": "CVE-2016-5696",
    "datePublished": "2016-08-06T20:00:00.000Z",
    "dateReserved": "2016-06-16T00:00:00.000Z",
    "dateUpdated": "2024-08-06T01:08:00.657Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

Sightings

Author	Source	Type	Date

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.

Action not permitted

RHSA-2016:1631

CVE-2016-5696 (GCVE-0-2016-5696)

Tags

Sightings

Nomenclature