RHSA-2021:0004

Vulnerability from csaf_redhat - Published: 2021-01-04 09:10 - Updated: 2026-02-19 13:20
Summary
Red Hat Security Advisory: kernel-rt security and bug fix update
Severity
Important
Notes
Topic: An update for kernel-rt is now available for Red Hat Enterprise Linux 8. 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. Security Fix(es): * kernel: Local buffer overflow in ctnetlink_parse_tuple_filter in net/netfilter/nf_conntrack_netlink.c (CVE-2020-25211) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section. Bug Fix(es): * kernel-rt: update RT source tree to the RHEL-8.3.z source tree (BZ#1906140)
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-2020-25211

A flaw was found in the Linux kernel. A local attacker, able to inject conntrack netlink configuration, could overflow a local buffer causing crashes or triggering the use of incorrect protocol numbers in ctnetlink_parse_tuple_filter in net/netfilter/nf_conntrack_netlink.c. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.

6.7 (Medium)
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
CWE-119 - Improper Restriction of Operations within the Bounds of a Memory Buffer
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-2021:0004
Workaround To mitigate this issue, prevent module nf_conntrack_netlink from being loaded. Please see https://access.redhat.com/solutions/41278 for how to blacklist a kernel module to prevent it from loading automatically. Alternatively, if nf_conntrack_netlink is being used, on Red Hat Enterprise Linux 8, you can disable unprivileged user namespaces by setting user.max_user_namespaces to 0: # echo "user.max_user_namespaces=0" > /etc/sysctl.d/userns.conf # sysctl -p /etc/sysctl.d/userns.conf
References
Acknowledgments
Google Will McVicker
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 Linux 8.\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\nSecurity Fix(es):\n\n* kernel: Local buffer overflow in ctnetlink_parse_tuple_filter in net/netfilter/nf_conntrack_netlink.c (CVE-2020-25211)\n\nFor more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.\n\nBug Fix(es):\n\n* kernel-rt: update RT source tree to the RHEL-8.3.z source tree (BZ#1906140)",
        "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-2021:0004",
        "url": "https://access.redhat.com/errata/RHSA-2021:0004"
      },
      {
        "category": "external",
        "summary": "https://access.redhat.com/security/updates/classification/#important",
        "url": "https://access.redhat.com/security/updates/classification/#important"
      },
      {
        "category": "external",
        "summary": "1877571",
        "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1877571"
      },
      {
        "category": "external",
        "summary": "1906140",
        "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1906140"
      },
      {
        "category": "self",
        "summary": "Canonical URL",
        "url": "https://security.access.redhat.com/data/csaf/v2/advisories/2021/rhsa-2021_0004.json"
      }
    ],
    "title": "Red Hat Security Advisory: kernel-rt security and bug fix update",
    "tracking": {
      "current_release_date": "2026-02-19T13:20:38+00:00",
      "generator": {
        "date": "2026-02-19T13:20:38+00:00",
        "engine": {
          "name": "Red Hat SDEngine",
          "version": "4.7.1"
        }
      },
      "id": "RHSA-2021:0004",
      "initial_release_date": "2021-01-04T09:10:52+00:00",
      "revision_history": [
        {
          "date": "2021-01-04T09:10:52+00:00",
          "number": "1",
          "summary": "Initial version"
        },
        {
          "date": "2021-01-04T09:10:52+00:00",
          "number": "2",
          "summary": "Last updated version"
        },
        {
          "date": "2026-02-19T13:20:38+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 Real Time for NFV (v. 8)",
                "product": {
                  "name": "Red Hat Enterprise Linux Real Time for NFV (v. 8)",
                  "product_id": "NFV-8.3.0.Z.MAIN",
                  "product_identification_helper": {
                    "cpe": "cpe:/a:redhat:enterprise_linux:8::nfv"
                  }
                }
              },
              {
                "category": "product_name",
                "name": "Red Hat Enterprise Linux Real Time (v. 8)",
                "product": {
                  "name": "Red Hat Enterprise Linux Real Time (v. 8)",
                  "product_id": "RT-8.3.0.Z.MAIN",
                  "product_identification_helper": {
                    "cpe": "cpe:/a:redhat:enterprise_linux:8::realtime"
                  }
                }
              }
            ],
            "category": "product_family",
            "name": "Red Hat Enterprise Linux"
          },
          {
            "branches": [
              {
                "category": "product_version",
                "name": "kernel-rt-0:4.18.0-240.10.1.rt7.64.el8_3.src",
                "product": {
                  "name": "kernel-rt-0:4.18.0-240.10.1.rt7.64.el8_3.src",
                  "product_id": "kernel-rt-0:4.18.0-240.10.1.rt7.64.el8_3.src",
                  "product_identification_helper": {
                    "purl": "pkg:rpm/redhat/kernel-rt@4.18.0-240.10.1.rt7.64.el8_3?arch=src"
                  }
                }
              }
            ],
            "category": "architecture",
            "name": "src"
          },
          {
            "branches": [
              {
                "category": "product_version",
                "name": "kernel-rt-0:4.18.0-240.10.1.rt7.64.el8_3.x86_64",
                "product": {
                  "name": "kernel-rt-0:4.18.0-240.10.1.rt7.64.el8_3.x86_64",
                  "product_id": "kernel-rt-0:4.18.0-240.10.1.rt7.64.el8_3.x86_64",
                  "product_identification_helper": {
                    "purl": "pkg:rpm/redhat/kernel-rt@4.18.0-240.10.1.rt7.64.el8_3?arch=x86_64"
                  }
                }
              },
              {
                "category": "product_version",
                "name": "kernel-rt-core-0:4.18.0-240.10.1.rt7.64.el8_3.x86_64",
                "product": {
                  "name": "kernel-rt-core-0:4.18.0-240.10.1.rt7.64.el8_3.x86_64",
                  "product_id": "kernel-rt-core-0:4.18.0-240.10.1.rt7.64.el8_3.x86_64",
                  "product_identification_helper": {
                    "purl": "pkg:rpm/redhat/kernel-rt-core@4.18.0-240.10.1.rt7.64.el8_3?arch=x86_64"
                  }
                }
              },
              {
                "category": "product_version",
                "name": "kernel-rt-debug-0:4.18.0-240.10.1.rt7.64.el8_3.x86_64",
                "product": {
                  "name": "kernel-rt-debug-0:4.18.0-240.10.1.rt7.64.el8_3.x86_64",
                  "product_id": "kernel-rt-debug-0:4.18.0-240.10.1.rt7.64.el8_3.x86_64",
                  "product_identification_helper": {
                    "purl": "pkg:rpm/redhat/kernel-rt-debug@4.18.0-240.10.1.rt7.64.el8_3?arch=x86_64"
                  }
                }
              },
              {
                "category": "product_version",
                "name": "kernel-rt-debug-core-0:4.18.0-240.10.1.rt7.64.el8_3.x86_64",
                "product": {
                  "name": "kernel-rt-debug-core-0:4.18.0-240.10.1.rt7.64.el8_3.x86_64",
                  "product_id": "kernel-rt-debug-core-0:4.18.0-240.10.1.rt7.64.el8_3.x86_64",
                  "product_identification_helper": {
                    "purl": "pkg:rpm/redhat/kernel-rt-debug-core@4.18.0-240.10.1.rt7.64.el8_3?arch=x86_64"
                  }
                }
              },
              {
                "category": "product_version",
                "name": "kernel-rt-debug-devel-0:4.18.0-240.10.1.rt7.64.el8_3.x86_64",
                "product": {
                  "name": "kernel-rt-debug-devel-0:4.18.0-240.10.1.rt7.64.el8_3.x86_64",
                  "product_id": "kernel-rt-debug-devel-0:4.18.0-240.10.1.rt7.64.el8_3.x86_64",
                  "product_identification_helper": {
                    "purl": "pkg:rpm/redhat/kernel-rt-debug-devel@4.18.0-240.10.1.rt7.64.el8_3?arch=x86_64"
                  }
                }
              },
              {
                "category": "product_version",
                "name": "kernel-rt-debug-kvm-0:4.18.0-240.10.1.rt7.64.el8_3.x86_64",
                "product": {
                  "name": "kernel-rt-debug-kvm-0:4.18.0-240.10.1.rt7.64.el8_3.x86_64",
                  "product_id": "kernel-rt-debug-kvm-0:4.18.0-240.10.1.rt7.64.el8_3.x86_64",
                  "product_identification_helper": {
                    "purl": "pkg:rpm/redhat/kernel-rt-debug-kvm@4.18.0-240.10.1.rt7.64.el8_3?arch=x86_64"
                  }
                }
              },
              {
                "category": "product_version",
                "name": "kernel-rt-debug-modules-0:4.18.0-240.10.1.rt7.64.el8_3.x86_64",
                "product": {
                  "name": "kernel-rt-debug-modules-0:4.18.0-240.10.1.rt7.64.el8_3.x86_64",
                  "product_id": "kernel-rt-debug-modules-0:4.18.0-240.10.1.rt7.64.el8_3.x86_64",
                  "product_identification_helper": {
                    "purl": "pkg:rpm/redhat/kernel-rt-debug-modules@4.18.0-240.10.1.rt7.64.el8_3?arch=x86_64"
                  }
                }
              },
              {
                "category": "product_version",
                "name": "kernel-rt-debug-modules-extra-0:4.18.0-240.10.1.rt7.64.el8_3.x86_64",
                "product": {
                  "name": "kernel-rt-debug-modules-extra-0:4.18.0-240.10.1.rt7.64.el8_3.x86_64",
                  "product_id": "kernel-rt-debug-modules-extra-0:4.18.0-240.10.1.rt7.64.el8_3.x86_64",
                  "product_identification_helper": {
                    "purl": "pkg:rpm/redhat/kernel-rt-debug-modules-extra@4.18.0-240.10.1.rt7.64.el8_3?arch=x86_64"
                  }
                }
              },
              {
                "category": "product_version",
                "name": "kernel-rt-devel-0:4.18.0-240.10.1.rt7.64.el8_3.x86_64",
                "product": {
                  "name": "kernel-rt-devel-0:4.18.0-240.10.1.rt7.64.el8_3.x86_64",
                  "product_id": "kernel-rt-devel-0:4.18.0-240.10.1.rt7.64.el8_3.x86_64",
                  "product_identification_helper": {
                    "purl": "pkg:rpm/redhat/kernel-rt-devel@4.18.0-240.10.1.rt7.64.el8_3?arch=x86_64"
                  }
                }
              },
              {
                "category": "product_version",
                "name": "kernel-rt-kvm-0:4.18.0-240.10.1.rt7.64.el8_3.x86_64",
                "product": {
                  "name": "kernel-rt-kvm-0:4.18.0-240.10.1.rt7.64.el8_3.x86_64",
                  "product_id": "kernel-rt-kvm-0:4.18.0-240.10.1.rt7.64.el8_3.x86_64",
                  "product_identification_helper": {
                    "purl": "pkg:rpm/redhat/kernel-rt-kvm@4.18.0-240.10.1.rt7.64.el8_3?arch=x86_64"
                  }
                }
              },
              {
                "category": "product_version",
                "name": "kernel-rt-modules-0:4.18.0-240.10.1.rt7.64.el8_3.x86_64",
                "product": {
                  "name": "kernel-rt-modules-0:4.18.0-240.10.1.rt7.64.el8_3.x86_64",
                  "product_id": "kernel-rt-modules-0:4.18.0-240.10.1.rt7.64.el8_3.x86_64",
                  "product_identification_helper": {
                    "purl": "pkg:rpm/redhat/kernel-rt-modules@4.18.0-240.10.1.rt7.64.el8_3?arch=x86_64"
                  }
                }
              },
              {
                "category": "product_version",
                "name": "kernel-rt-modules-extra-0:4.18.0-240.10.1.rt7.64.el8_3.x86_64",
                "product": {
                  "name": "kernel-rt-modules-extra-0:4.18.0-240.10.1.rt7.64.el8_3.x86_64",
                  "product_id": "kernel-rt-modules-extra-0:4.18.0-240.10.1.rt7.64.el8_3.x86_64",
                  "product_identification_helper": {
                    "purl": "pkg:rpm/redhat/kernel-rt-modules-extra@4.18.0-240.10.1.rt7.64.el8_3?arch=x86_64"
                  }
                }
              },
              {
                "category": "product_version",
                "name": "kernel-rt-debug-debuginfo-0:4.18.0-240.10.1.rt7.64.el8_3.x86_64",
                "product": {
                  "name": "kernel-rt-debug-debuginfo-0:4.18.0-240.10.1.rt7.64.el8_3.x86_64",
                  "product_id": "kernel-rt-debug-debuginfo-0:4.18.0-240.10.1.rt7.64.el8_3.x86_64",
                  "product_identification_helper": {
                    "purl": "pkg:rpm/redhat/kernel-rt-debug-debuginfo@4.18.0-240.10.1.rt7.64.el8_3?arch=x86_64"
                  }
                }
              },
              {
                "category": "product_version",
                "name": "kernel-rt-debuginfo-0:4.18.0-240.10.1.rt7.64.el8_3.x86_64",
                "product": {
                  "name": "kernel-rt-debuginfo-0:4.18.0-240.10.1.rt7.64.el8_3.x86_64",
                  "product_id": "kernel-rt-debuginfo-0:4.18.0-240.10.1.rt7.64.el8_3.x86_64",
                  "product_identification_helper": {
                    "purl": "pkg:rpm/redhat/kernel-rt-debuginfo@4.18.0-240.10.1.rt7.64.el8_3?arch=x86_64"
                  }
                }
              },
              {
                "category": "product_version",
                "name": "kernel-rt-debuginfo-common-x86_64-0:4.18.0-240.10.1.rt7.64.el8_3.x86_64",
                "product": {
                  "name": "kernel-rt-debuginfo-common-x86_64-0:4.18.0-240.10.1.rt7.64.el8_3.x86_64",
                  "product_id": "kernel-rt-debuginfo-common-x86_64-0:4.18.0-240.10.1.rt7.64.el8_3.x86_64",
                  "product_identification_helper": {
                    "purl": "pkg:rpm/redhat/kernel-rt-debuginfo-common-x86_64@4.18.0-240.10.1.rt7.64.el8_3?arch=x86_64"
                  }
                }
              }
            ],
            "category": "architecture",
            "name": "x86_64"
          }
        ],
        "category": "vendor",
        "name": "Red Hat"
      }
    ],
    "relationships": [
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "kernel-rt-0:4.18.0-240.10.1.rt7.64.el8_3.src as a component of Red Hat Enterprise Linux Real Time for NFV (v. 8)",
          "product_id": "NFV-8.3.0.Z.MAIN:kernel-rt-0:4.18.0-240.10.1.rt7.64.el8_3.src"
        },
        "product_reference": "kernel-rt-0:4.18.0-240.10.1.rt7.64.el8_3.src",
        "relates_to_product_reference": "NFV-8.3.0.Z.MAIN"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "kernel-rt-0:4.18.0-240.10.1.rt7.64.el8_3.x86_64 as a component of Red Hat Enterprise Linux Real Time for NFV (v. 8)",
          "product_id": "NFV-8.3.0.Z.MAIN:kernel-rt-0:4.18.0-240.10.1.rt7.64.el8_3.x86_64"
        },
        "product_reference": "kernel-rt-0:4.18.0-240.10.1.rt7.64.el8_3.x86_64",
        "relates_to_product_reference": "NFV-8.3.0.Z.MAIN"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "kernel-rt-core-0:4.18.0-240.10.1.rt7.64.el8_3.x86_64 as a component of Red Hat Enterprise Linux Real Time for NFV (v. 8)",
          "product_id": "NFV-8.3.0.Z.MAIN:kernel-rt-core-0:4.18.0-240.10.1.rt7.64.el8_3.x86_64"
        },
        "product_reference": "kernel-rt-core-0:4.18.0-240.10.1.rt7.64.el8_3.x86_64",
        "relates_to_product_reference": "NFV-8.3.0.Z.MAIN"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "kernel-rt-debug-0:4.18.0-240.10.1.rt7.64.el8_3.x86_64 as a component of Red Hat Enterprise Linux Real Time for NFV (v. 8)",
          "product_id": "NFV-8.3.0.Z.MAIN:kernel-rt-debug-0:4.18.0-240.10.1.rt7.64.el8_3.x86_64"
        },
        "product_reference": "kernel-rt-debug-0:4.18.0-240.10.1.rt7.64.el8_3.x86_64",
        "relates_to_product_reference": "NFV-8.3.0.Z.MAIN"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "kernel-rt-debug-core-0:4.18.0-240.10.1.rt7.64.el8_3.x86_64 as a component of Red Hat Enterprise Linux Real Time for NFV (v. 8)",
          "product_id": "NFV-8.3.0.Z.MAIN:kernel-rt-debug-core-0:4.18.0-240.10.1.rt7.64.el8_3.x86_64"
        },
        "product_reference": "kernel-rt-debug-core-0:4.18.0-240.10.1.rt7.64.el8_3.x86_64",
        "relates_to_product_reference": "NFV-8.3.0.Z.MAIN"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "kernel-rt-debug-debuginfo-0:4.18.0-240.10.1.rt7.64.el8_3.x86_64 as a component of Red Hat Enterprise Linux Real Time for NFV (v. 8)",
          "product_id": "NFV-8.3.0.Z.MAIN:kernel-rt-debug-debuginfo-0:4.18.0-240.10.1.rt7.64.el8_3.x86_64"
        },
        "product_reference": "kernel-rt-debug-debuginfo-0:4.18.0-240.10.1.rt7.64.el8_3.x86_64",
        "relates_to_product_reference": "NFV-8.3.0.Z.MAIN"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "kernel-rt-debug-devel-0:4.18.0-240.10.1.rt7.64.el8_3.x86_64 as a component of Red Hat Enterprise Linux Real Time for NFV (v. 8)",
          "product_id": "NFV-8.3.0.Z.MAIN:kernel-rt-debug-devel-0:4.18.0-240.10.1.rt7.64.el8_3.x86_64"
        },
        "product_reference": "kernel-rt-debug-devel-0:4.18.0-240.10.1.rt7.64.el8_3.x86_64",
        "relates_to_product_reference": "NFV-8.3.0.Z.MAIN"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "kernel-rt-debug-kvm-0:4.18.0-240.10.1.rt7.64.el8_3.x86_64 as a component of Red Hat Enterprise Linux Real Time for NFV (v. 8)",
          "product_id": "NFV-8.3.0.Z.MAIN:kernel-rt-debug-kvm-0:4.18.0-240.10.1.rt7.64.el8_3.x86_64"
        },
        "product_reference": "kernel-rt-debug-kvm-0:4.18.0-240.10.1.rt7.64.el8_3.x86_64",
        "relates_to_product_reference": "NFV-8.3.0.Z.MAIN"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "kernel-rt-debug-modules-0:4.18.0-240.10.1.rt7.64.el8_3.x86_64 as a component of Red Hat Enterprise Linux Real Time for NFV (v. 8)",
          "product_id": "NFV-8.3.0.Z.MAIN:kernel-rt-debug-modules-0:4.18.0-240.10.1.rt7.64.el8_3.x86_64"
        },
        "product_reference": "kernel-rt-debug-modules-0:4.18.0-240.10.1.rt7.64.el8_3.x86_64",
        "relates_to_product_reference": "NFV-8.3.0.Z.MAIN"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "kernel-rt-debug-modules-extra-0:4.18.0-240.10.1.rt7.64.el8_3.x86_64 as a component of Red Hat Enterprise Linux Real Time for NFV (v. 8)",
          "product_id": "NFV-8.3.0.Z.MAIN:kernel-rt-debug-modules-extra-0:4.18.0-240.10.1.rt7.64.el8_3.x86_64"
        },
        "product_reference": "kernel-rt-debug-modules-extra-0:4.18.0-240.10.1.rt7.64.el8_3.x86_64",
        "relates_to_product_reference": "NFV-8.3.0.Z.MAIN"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "kernel-rt-debuginfo-0:4.18.0-240.10.1.rt7.64.el8_3.x86_64 as a component of Red Hat Enterprise Linux Real Time for NFV (v. 8)",
          "product_id": "NFV-8.3.0.Z.MAIN:kernel-rt-debuginfo-0:4.18.0-240.10.1.rt7.64.el8_3.x86_64"
        },
        "product_reference": "kernel-rt-debuginfo-0:4.18.0-240.10.1.rt7.64.el8_3.x86_64",
        "relates_to_product_reference": "NFV-8.3.0.Z.MAIN"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "kernel-rt-debuginfo-common-x86_64-0:4.18.0-240.10.1.rt7.64.el8_3.x86_64 as a component of Red Hat Enterprise Linux Real Time for NFV (v. 8)",
          "product_id": "NFV-8.3.0.Z.MAIN:kernel-rt-debuginfo-common-x86_64-0:4.18.0-240.10.1.rt7.64.el8_3.x86_64"
        },
        "product_reference": "kernel-rt-debuginfo-common-x86_64-0:4.18.0-240.10.1.rt7.64.el8_3.x86_64",
        "relates_to_product_reference": "NFV-8.3.0.Z.MAIN"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "kernel-rt-devel-0:4.18.0-240.10.1.rt7.64.el8_3.x86_64 as a component of Red Hat Enterprise Linux Real Time for NFV (v. 8)",
          "product_id": "NFV-8.3.0.Z.MAIN:kernel-rt-devel-0:4.18.0-240.10.1.rt7.64.el8_3.x86_64"
        },
        "product_reference": "kernel-rt-devel-0:4.18.0-240.10.1.rt7.64.el8_3.x86_64",
        "relates_to_product_reference": "NFV-8.3.0.Z.MAIN"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "kernel-rt-kvm-0:4.18.0-240.10.1.rt7.64.el8_3.x86_64 as a component of Red Hat Enterprise Linux Real Time for NFV (v. 8)",
          "product_id": "NFV-8.3.0.Z.MAIN:kernel-rt-kvm-0:4.18.0-240.10.1.rt7.64.el8_3.x86_64"
        },
        "product_reference": "kernel-rt-kvm-0:4.18.0-240.10.1.rt7.64.el8_3.x86_64",
        "relates_to_product_reference": "NFV-8.3.0.Z.MAIN"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "kernel-rt-modules-0:4.18.0-240.10.1.rt7.64.el8_3.x86_64 as a component of Red Hat Enterprise Linux Real Time for NFV (v. 8)",
          "product_id": "NFV-8.3.0.Z.MAIN:kernel-rt-modules-0:4.18.0-240.10.1.rt7.64.el8_3.x86_64"
        },
        "product_reference": "kernel-rt-modules-0:4.18.0-240.10.1.rt7.64.el8_3.x86_64",
        "relates_to_product_reference": "NFV-8.3.0.Z.MAIN"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "kernel-rt-modules-extra-0:4.18.0-240.10.1.rt7.64.el8_3.x86_64 as a component of Red Hat Enterprise Linux Real Time for NFV (v. 8)",
          "product_id": "NFV-8.3.0.Z.MAIN:kernel-rt-modules-extra-0:4.18.0-240.10.1.rt7.64.el8_3.x86_64"
        },
        "product_reference": "kernel-rt-modules-extra-0:4.18.0-240.10.1.rt7.64.el8_3.x86_64",
        "relates_to_product_reference": "NFV-8.3.0.Z.MAIN"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "kernel-rt-0:4.18.0-240.10.1.rt7.64.el8_3.src as a component of Red Hat Enterprise Linux Real Time (v. 8)",
          "product_id": "RT-8.3.0.Z.MAIN:kernel-rt-0:4.18.0-240.10.1.rt7.64.el8_3.src"
        },
        "product_reference": "kernel-rt-0:4.18.0-240.10.1.rt7.64.el8_3.src",
        "relates_to_product_reference": "RT-8.3.0.Z.MAIN"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "kernel-rt-0:4.18.0-240.10.1.rt7.64.el8_3.x86_64 as a component of Red Hat Enterprise Linux Real Time (v. 8)",
          "product_id": "RT-8.3.0.Z.MAIN:kernel-rt-0:4.18.0-240.10.1.rt7.64.el8_3.x86_64"
        },
        "product_reference": "kernel-rt-0:4.18.0-240.10.1.rt7.64.el8_3.x86_64",
        "relates_to_product_reference": "RT-8.3.0.Z.MAIN"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "kernel-rt-core-0:4.18.0-240.10.1.rt7.64.el8_3.x86_64 as a component of Red Hat Enterprise Linux Real Time (v. 8)",
          "product_id": "RT-8.3.0.Z.MAIN:kernel-rt-core-0:4.18.0-240.10.1.rt7.64.el8_3.x86_64"
        },
        "product_reference": "kernel-rt-core-0:4.18.0-240.10.1.rt7.64.el8_3.x86_64",
        "relates_to_product_reference": "RT-8.3.0.Z.MAIN"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "kernel-rt-debug-0:4.18.0-240.10.1.rt7.64.el8_3.x86_64 as a component of Red Hat Enterprise Linux Real Time (v. 8)",
          "product_id": "RT-8.3.0.Z.MAIN:kernel-rt-debug-0:4.18.0-240.10.1.rt7.64.el8_3.x86_64"
        },
        "product_reference": "kernel-rt-debug-0:4.18.0-240.10.1.rt7.64.el8_3.x86_64",
        "relates_to_product_reference": "RT-8.3.0.Z.MAIN"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "kernel-rt-debug-core-0:4.18.0-240.10.1.rt7.64.el8_3.x86_64 as a component of Red Hat Enterprise Linux Real Time (v. 8)",
          "product_id": "RT-8.3.0.Z.MAIN:kernel-rt-debug-core-0:4.18.0-240.10.1.rt7.64.el8_3.x86_64"
        },
        "product_reference": "kernel-rt-debug-core-0:4.18.0-240.10.1.rt7.64.el8_3.x86_64",
        "relates_to_product_reference": "RT-8.3.0.Z.MAIN"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "kernel-rt-debug-debuginfo-0:4.18.0-240.10.1.rt7.64.el8_3.x86_64 as a component of Red Hat Enterprise Linux Real Time (v. 8)",
          "product_id": "RT-8.3.0.Z.MAIN:kernel-rt-debug-debuginfo-0:4.18.0-240.10.1.rt7.64.el8_3.x86_64"
        },
        "product_reference": "kernel-rt-debug-debuginfo-0:4.18.0-240.10.1.rt7.64.el8_3.x86_64",
        "relates_to_product_reference": "RT-8.3.0.Z.MAIN"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "kernel-rt-debug-devel-0:4.18.0-240.10.1.rt7.64.el8_3.x86_64 as a component of Red Hat Enterprise Linux Real Time (v. 8)",
          "product_id": "RT-8.3.0.Z.MAIN:kernel-rt-debug-devel-0:4.18.0-240.10.1.rt7.64.el8_3.x86_64"
        },
        "product_reference": "kernel-rt-debug-devel-0:4.18.0-240.10.1.rt7.64.el8_3.x86_64",
        "relates_to_product_reference": "RT-8.3.0.Z.MAIN"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "kernel-rt-debug-kvm-0:4.18.0-240.10.1.rt7.64.el8_3.x86_64 as a component of Red Hat Enterprise Linux Real Time (v. 8)",
          "product_id": "RT-8.3.0.Z.MAIN:kernel-rt-debug-kvm-0:4.18.0-240.10.1.rt7.64.el8_3.x86_64"
        },
        "product_reference": "kernel-rt-debug-kvm-0:4.18.0-240.10.1.rt7.64.el8_3.x86_64",
        "relates_to_product_reference": "RT-8.3.0.Z.MAIN"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "kernel-rt-debug-modules-0:4.18.0-240.10.1.rt7.64.el8_3.x86_64 as a component of Red Hat Enterprise Linux Real Time (v. 8)",
          "product_id": "RT-8.3.0.Z.MAIN:kernel-rt-debug-modules-0:4.18.0-240.10.1.rt7.64.el8_3.x86_64"
        },
        "product_reference": "kernel-rt-debug-modules-0:4.18.0-240.10.1.rt7.64.el8_3.x86_64",
        "relates_to_product_reference": "RT-8.3.0.Z.MAIN"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "kernel-rt-debug-modules-extra-0:4.18.0-240.10.1.rt7.64.el8_3.x86_64 as a component of Red Hat Enterprise Linux Real Time (v. 8)",
          "product_id": "RT-8.3.0.Z.MAIN:kernel-rt-debug-modules-extra-0:4.18.0-240.10.1.rt7.64.el8_3.x86_64"
        },
        "product_reference": "kernel-rt-debug-modules-extra-0:4.18.0-240.10.1.rt7.64.el8_3.x86_64",
        "relates_to_product_reference": "RT-8.3.0.Z.MAIN"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "kernel-rt-debuginfo-0:4.18.0-240.10.1.rt7.64.el8_3.x86_64 as a component of Red Hat Enterprise Linux Real Time (v. 8)",
          "product_id": "RT-8.3.0.Z.MAIN:kernel-rt-debuginfo-0:4.18.0-240.10.1.rt7.64.el8_3.x86_64"
        },
        "product_reference": "kernel-rt-debuginfo-0:4.18.0-240.10.1.rt7.64.el8_3.x86_64",
        "relates_to_product_reference": "RT-8.3.0.Z.MAIN"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "kernel-rt-debuginfo-common-x86_64-0:4.18.0-240.10.1.rt7.64.el8_3.x86_64 as a component of Red Hat Enterprise Linux Real Time (v. 8)",
          "product_id": "RT-8.3.0.Z.MAIN:kernel-rt-debuginfo-common-x86_64-0:4.18.0-240.10.1.rt7.64.el8_3.x86_64"
        },
        "product_reference": "kernel-rt-debuginfo-common-x86_64-0:4.18.0-240.10.1.rt7.64.el8_3.x86_64",
        "relates_to_product_reference": "RT-8.3.0.Z.MAIN"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "kernel-rt-devel-0:4.18.0-240.10.1.rt7.64.el8_3.x86_64 as a component of Red Hat Enterprise Linux Real Time (v. 8)",
          "product_id": "RT-8.3.0.Z.MAIN:kernel-rt-devel-0:4.18.0-240.10.1.rt7.64.el8_3.x86_64"
        },
        "product_reference": "kernel-rt-devel-0:4.18.0-240.10.1.rt7.64.el8_3.x86_64",
        "relates_to_product_reference": "RT-8.3.0.Z.MAIN"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "kernel-rt-kvm-0:4.18.0-240.10.1.rt7.64.el8_3.x86_64 as a component of Red Hat Enterprise Linux Real Time (v. 8)",
          "product_id": "RT-8.3.0.Z.MAIN:kernel-rt-kvm-0:4.18.0-240.10.1.rt7.64.el8_3.x86_64"
        },
        "product_reference": "kernel-rt-kvm-0:4.18.0-240.10.1.rt7.64.el8_3.x86_64",
        "relates_to_product_reference": "RT-8.3.0.Z.MAIN"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "kernel-rt-modules-0:4.18.0-240.10.1.rt7.64.el8_3.x86_64 as a component of Red Hat Enterprise Linux Real Time (v. 8)",
          "product_id": "RT-8.3.0.Z.MAIN:kernel-rt-modules-0:4.18.0-240.10.1.rt7.64.el8_3.x86_64"
        },
        "product_reference": "kernel-rt-modules-0:4.18.0-240.10.1.rt7.64.el8_3.x86_64",
        "relates_to_product_reference": "RT-8.3.0.Z.MAIN"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "kernel-rt-modules-extra-0:4.18.0-240.10.1.rt7.64.el8_3.x86_64 as a component of Red Hat Enterprise Linux Real Time (v. 8)",
          "product_id": "RT-8.3.0.Z.MAIN:kernel-rt-modules-extra-0:4.18.0-240.10.1.rt7.64.el8_3.x86_64"
        },
        "product_reference": "kernel-rt-modules-extra-0:4.18.0-240.10.1.rt7.64.el8_3.x86_64",
        "relates_to_product_reference": "RT-8.3.0.Z.MAIN"
      }
    ]
  },
  "vulnerabilities": [
    {
      "acknowledgments": [
        {
          "names": [
            "Will McVicker"
          ],
          "organization": "Google"
        }
      ],
      "cve": "CVE-2020-25211",
      "cwe": {
        "id": "CWE-119",
        "name": "Improper Restriction of Operations within the Bounds of a Memory Buffer"
      },
      "discovery_date": "2020-09-09T00:00:00+00:00",
      "ids": [
        {
          "system_name": "Red Hat Bugzilla ID",
          "text": "1877571"
        }
      ],
      "notes": [
        {
          "category": "description",
          "text": "A flaw was found in the Linux kernel. A local attacker, able to inject conntrack netlink configuration, could overflow a local buffer causing crashes or triggering the use of incorrect protocol numbers in ctnetlink_parse_tuple_filter in net/netfilter/nf_conntrack_netlink.c. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "kernel: Local buffer overflow in ctnetlink_parse_tuple_filter in net/netfilter/nf_conntrack_netlink.c",
          "title": "Vulnerability summary"
        },
        {
          "category": "other",
          "text": "This flaw is rated as having Moderate impact (Red Hat Enterprise Linux 7 and lower)  because of the need to have CAP_NET_ADMIN privileges.\n\nThis flaw is rated as having Important (Red Hat Enterprise Linux 8) impact because of the need to have CAP_NET_ADMIN privileges. Red Hat Enterprise Linux 8 enabled unprivileged user/network namespaces by default which can be used to exercise this vulnerability.",
          "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": [
          "NFV-8.3.0.Z.MAIN:kernel-rt-0:4.18.0-240.10.1.rt7.64.el8_3.src",
          "NFV-8.3.0.Z.MAIN:kernel-rt-0:4.18.0-240.10.1.rt7.64.el8_3.x86_64",
          "NFV-8.3.0.Z.MAIN:kernel-rt-core-0:4.18.0-240.10.1.rt7.64.el8_3.x86_64",
          "NFV-8.3.0.Z.MAIN:kernel-rt-debug-0:4.18.0-240.10.1.rt7.64.el8_3.x86_64",
          "NFV-8.3.0.Z.MAIN:kernel-rt-debug-core-0:4.18.0-240.10.1.rt7.64.el8_3.x86_64",
          "NFV-8.3.0.Z.MAIN:kernel-rt-debug-debuginfo-0:4.18.0-240.10.1.rt7.64.el8_3.x86_64",
          "NFV-8.3.0.Z.MAIN:kernel-rt-debug-devel-0:4.18.0-240.10.1.rt7.64.el8_3.x86_64",
          "NFV-8.3.0.Z.MAIN:kernel-rt-debug-kvm-0:4.18.0-240.10.1.rt7.64.el8_3.x86_64",
          "NFV-8.3.0.Z.MAIN:kernel-rt-debug-modules-0:4.18.0-240.10.1.rt7.64.el8_3.x86_64",
          "NFV-8.3.0.Z.MAIN:kernel-rt-debug-modules-extra-0:4.18.0-240.10.1.rt7.64.el8_3.x86_64",
          "NFV-8.3.0.Z.MAIN:kernel-rt-debuginfo-0:4.18.0-240.10.1.rt7.64.el8_3.x86_64",
          "NFV-8.3.0.Z.MAIN:kernel-rt-debuginfo-common-x86_64-0:4.18.0-240.10.1.rt7.64.el8_3.x86_64",
          "NFV-8.3.0.Z.MAIN:kernel-rt-devel-0:4.18.0-240.10.1.rt7.64.el8_3.x86_64",
          "NFV-8.3.0.Z.MAIN:kernel-rt-kvm-0:4.18.0-240.10.1.rt7.64.el8_3.x86_64",
          "NFV-8.3.0.Z.MAIN:kernel-rt-modules-0:4.18.0-240.10.1.rt7.64.el8_3.x86_64",
          "NFV-8.3.0.Z.MAIN:kernel-rt-modules-extra-0:4.18.0-240.10.1.rt7.64.el8_3.x86_64",
          "RT-8.3.0.Z.MAIN:kernel-rt-0:4.18.0-240.10.1.rt7.64.el8_3.src",
          "RT-8.3.0.Z.MAIN:kernel-rt-0:4.18.0-240.10.1.rt7.64.el8_3.x86_64",
          "RT-8.3.0.Z.MAIN:kernel-rt-core-0:4.18.0-240.10.1.rt7.64.el8_3.x86_64",
          "RT-8.3.0.Z.MAIN:kernel-rt-debug-0:4.18.0-240.10.1.rt7.64.el8_3.x86_64",
          "RT-8.3.0.Z.MAIN:kernel-rt-debug-core-0:4.18.0-240.10.1.rt7.64.el8_3.x86_64",
          "RT-8.3.0.Z.MAIN:kernel-rt-debug-debuginfo-0:4.18.0-240.10.1.rt7.64.el8_3.x86_64",
          "RT-8.3.0.Z.MAIN:kernel-rt-debug-devel-0:4.18.0-240.10.1.rt7.64.el8_3.x86_64",
          "RT-8.3.0.Z.MAIN:kernel-rt-debug-kvm-0:4.18.0-240.10.1.rt7.64.el8_3.x86_64",
          "RT-8.3.0.Z.MAIN:kernel-rt-debug-modules-0:4.18.0-240.10.1.rt7.64.el8_3.x86_64",
          "RT-8.3.0.Z.MAIN:kernel-rt-debug-modules-extra-0:4.18.0-240.10.1.rt7.64.el8_3.x86_64",
          "RT-8.3.0.Z.MAIN:kernel-rt-debuginfo-0:4.18.0-240.10.1.rt7.64.el8_3.x86_64",
          "RT-8.3.0.Z.MAIN:kernel-rt-debuginfo-common-x86_64-0:4.18.0-240.10.1.rt7.64.el8_3.x86_64",
          "RT-8.3.0.Z.MAIN:kernel-rt-devel-0:4.18.0-240.10.1.rt7.64.el8_3.x86_64",
          "RT-8.3.0.Z.MAIN:kernel-rt-kvm-0:4.18.0-240.10.1.rt7.64.el8_3.x86_64",
          "RT-8.3.0.Z.MAIN:kernel-rt-modules-0:4.18.0-240.10.1.rt7.64.el8_3.x86_64",
          "RT-8.3.0.Z.MAIN:kernel-rt-modules-extra-0:4.18.0-240.10.1.rt7.64.el8_3.x86_64"
        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "Canonical URL",
          "url": "https://access.redhat.com/security/cve/CVE-2020-25211"
        },
        {
          "category": "external",
          "summary": "RHBZ#1877571",
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1877571"
        },
        {
          "category": "external",
          "summary": "https://www.cve.org/CVERecord?id=CVE-2020-25211",
          "url": "https://www.cve.org/CVERecord?id=CVE-2020-25211"
        },
        {
          "category": "external",
          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2020-25211",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2020-25211"
        },
        {
          "category": "external",
          "summary": "https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=1cc5ef91d2ff94d2bf2de3b3585423e8a1051cb6",
          "url": "https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=1cc5ef91d2ff94d2bf2de3b3585423e8a1051cb6"
        }
      ],
      "release_date": "2020-09-09T00:00:00+00:00",
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2021-01-04T09:10:52+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": [
            "NFV-8.3.0.Z.MAIN:kernel-rt-0:4.18.0-240.10.1.rt7.64.el8_3.src",
            "NFV-8.3.0.Z.MAIN:kernel-rt-0:4.18.0-240.10.1.rt7.64.el8_3.x86_64",
            "NFV-8.3.0.Z.MAIN:kernel-rt-core-0:4.18.0-240.10.1.rt7.64.el8_3.x86_64",
            "NFV-8.3.0.Z.MAIN:kernel-rt-debug-0:4.18.0-240.10.1.rt7.64.el8_3.x86_64",
            "NFV-8.3.0.Z.MAIN:kernel-rt-debug-core-0:4.18.0-240.10.1.rt7.64.el8_3.x86_64",
            "NFV-8.3.0.Z.MAIN:kernel-rt-debug-debuginfo-0:4.18.0-240.10.1.rt7.64.el8_3.x86_64",
            "NFV-8.3.0.Z.MAIN:kernel-rt-debug-devel-0:4.18.0-240.10.1.rt7.64.el8_3.x86_64",
            "NFV-8.3.0.Z.MAIN:kernel-rt-debug-kvm-0:4.18.0-240.10.1.rt7.64.el8_3.x86_64",
            "NFV-8.3.0.Z.MAIN:kernel-rt-debug-modules-0:4.18.0-240.10.1.rt7.64.el8_3.x86_64",
            "NFV-8.3.0.Z.MAIN:kernel-rt-debug-modules-extra-0:4.18.0-240.10.1.rt7.64.el8_3.x86_64",
            "NFV-8.3.0.Z.MAIN:kernel-rt-debuginfo-0:4.18.0-240.10.1.rt7.64.el8_3.x86_64",
            "NFV-8.3.0.Z.MAIN:kernel-rt-debuginfo-common-x86_64-0:4.18.0-240.10.1.rt7.64.el8_3.x86_64",
            "NFV-8.3.0.Z.MAIN:kernel-rt-devel-0:4.18.0-240.10.1.rt7.64.el8_3.x86_64",
            "NFV-8.3.0.Z.MAIN:kernel-rt-kvm-0:4.18.0-240.10.1.rt7.64.el8_3.x86_64",
            "NFV-8.3.0.Z.MAIN:kernel-rt-modules-0:4.18.0-240.10.1.rt7.64.el8_3.x86_64",
            "NFV-8.3.0.Z.MAIN:kernel-rt-modules-extra-0:4.18.0-240.10.1.rt7.64.el8_3.x86_64",
            "RT-8.3.0.Z.MAIN:kernel-rt-0:4.18.0-240.10.1.rt7.64.el8_3.src",
            "RT-8.3.0.Z.MAIN:kernel-rt-0:4.18.0-240.10.1.rt7.64.el8_3.x86_64",
            "RT-8.3.0.Z.MAIN:kernel-rt-core-0:4.18.0-240.10.1.rt7.64.el8_3.x86_64",
            "RT-8.3.0.Z.MAIN:kernel-rt-debug-0:4.18.0-240.10.1.rt7.64.el8_3.x86_64",
            "RT-8.3.0.Z.MAIN:kernel-rt-debug-core-0:4.18.0-240.10.1.rt7.64.el8_3.x86_64",
            "RT-8.3.0.Z.MAIN:kernel-rt-debug-debuginfo-0:4.18.0-240.10.1.rt7.64.el8_3.x86_64",
            "RT-8.3.0.Z.MAIN:kernel-rt-debug-devel-0:4.18.0-240.10.1.rt7.64.el8_3.x86_64",
            "RT-8.3.0.Z.MAIN:kernel-rt-debug-kvm-0:4.18.0-240.10.1.rt7.64.el8_3.x86_64",
            "RT-8.3.0.Z.MAIN:kernel-rt-debug-modules-0:4.18.0-240.10.1.rt7.64.el8_3.x86_64",
            "RT-8.3.0.Z.MAIN:kernel-rt-debug-modules-extra-0:4.18.0-240.10.1.rt7.64.el8_3.x86_64",
            "RT-8.3.0.Z.MAIN:kernel-rt-debuginfo-0:4.18.0-240.10.1.rt7.64.el8_3.x86_64",
            "RT-8.3.0.Z.MAIN:kernel-rt-debuginfo-common-x86_64-0:4.18.0-240.10.1.rt7.64.el8_3.x86_64",
            "RT-8.3.0.Z.MAIN:kernel-rt-devel-0:4.18.0-240.10.1.rt7.64.el8_3.x86_64",
            "RT-8.3.0.Z.MAIN:kernel-rt-kvm-0:4.18.0-240.10.1.rt7.64.el8_3.x86_64",
            "RT-8.3.0.Z.MAIN:kernel-rt-modules-0:4.18.0-240.10.1.rt7.64.el8_3.x86_64",
            "RT-8.3.0.Z.MAIN:kernel-rt-modules-extra-0:4.18.0-240.10.1.rt7.64.el8_3.x86_64"
          ],
          "restart_required": {
            "category": "none"
          },
          "url": "https://access.redhat.com/errata/RHSA-2021:0004"
        },
        {
          "category": "workaround",
          "details": "To mitigate this issue, prevent module nf_conntrack_netlink from being loaded. Please see https://access.redhat.com/solutions/41278 for how to blacklist a kernel module to prevent it from loading automatically.\n\nAlternatively, if nf_conntrack_netlink is being used, on Red Hat Enterprise Linux 8, you can disable unprivileged user namespaces by setting user.max_user_namespaces to 0:\n\n# echo \"user.max_user_namespaces=0\" \u003e /etc/sysctl.d/userns.conf\n# sysctl -p /etc/sysctl.d/userns.conf",
          "product_ids": [
            "NFV-8.3.0.Z.MAIN:kernel-rt-0:4.18.0-240.10.1.rt7.64.el8_3.src",
            "NFV-8.3.0.Z.MAIN:kernel-rt-0:4.18.0-240.10.1.rt7.64.el8_3.x86_64",
            "NFV-8.3.0.Z.MAIN:kernel-rt-core-0:4.18.0-240.10.1.rt7.64.el8_3.x86_64",
            "NFV-8.3.0.Z.MAIN:kernel-rt-debug-0:4.18.0-240.10.1.rt7.64.el8_3.x86_64",
            "NFV-8.3.0.Z.MAIN:kernel-rt-debug-core-0:4.18.0-240.10.1.rt7.64.el8_3.x86_64",
            "NFV-8.3.0.Z.MAIN:kernel-rt-debug-debuginfo-0:4.18.0-240.10.1.rt7.64.el8_3.x86_64",
            "NFV-8.3.0.Z.MAIN:kernel-rt-debug-devel-0:4.18.0-240.10.1.rt7.64.el8_3.x86_64",
            "NFV-8.3.0.Z.MAIN:kernel-rt-debug-kvm-0:4.18.0-240.10.1.rt7.64.el8_3.x86_64",
            "NFV-8.3.0.Z.MAIN:kernel-rt-debug-modules-0:4.18.0-240.10.1.rt7.64.el8_3.x86_64",
            "NFV-8.3.0.Z.MAIN:kernel-rt-debug-modules-extra-0:4.18.0-240.10.1.rt7.64.el8_3.x86_64",
            "NFV-8.3.0.Z.MAIN:kernel-rt-debuginfo-0:4.18.0-240.10.1.rt7.64.el8_3.x86_64",
            "NFV-8.3.0.Z.MAIN:kernel-rt-debuginfo-common-x86_64-0:4.18.0-240.10.1.rt7.64.el8_3.x86_64",
            "NFV-8.3.0.Z.MAIN:kernel-rt-devel-0:4.18.0-240.10.1.rt7.64.el8_3.x86_64",
            "NFV-8.3.0.Z.MAIN:kernel-rt-kvm-0:4.18.0-240.10.1.rt7.64.el8_3.x86_64",
            "NFV-8.3.0.Z.MAIN:kernel-rt-modules-0:4.18.0-240.10.1.rt7.64.el8_3.x86_64",
            "NFV-8.3.0.Z.MAIN:kernel-rt-modules-extra-0:4.18.0-240.10.1.rt7.64.el8_3.x86_64",
            "RT-8.3.0.Z.MAIN:kernel-rt-0:4.18.0-240.10.1.rt7.64.el8_3.src",
            "RT-8.3.0.Z.MAIN:kernel-rt-0:4.18.0-240.10.1.rt7.64.el8_3.x86_64",
            "RT-8.3.0.Z.MAIN:kernel-rt-core-0:4.18.0-240.10.1.rt7.64.el8_3.x86_64",
            "RT-8.3.0.Z.MAIN:kernel-rt-debug-0:4.18.0-240.10.1.rt7.64.el8_3.x86_64",
            "RT-8.3.0.Z.MAIN:kernel-rt-debug-core-0:4.18.0-240.10.1.rt7.64.el8_3.x86_64",
            "RT-8.3.0.Z.MAIN:kernel-rt-debug-debuginfo-0:4.18.0-240.10.1.rt7.64.el8_3.x86_64",
            "RT-8.3.0.Z.MAIN:kernel-rt-debug-devel-0:4.18.0-240.10.1.rt7.64.el8_3.x86_64",
            "RT-8.3.0.Z.MAIN:kernel-rt-debug-kvm-0:4.18.0-240.10.1.rt7.64.el8_3.x86_64",
            "RT-8.3.0.Z.MAIN:kernel-rt-debug-modules-0:4.18.0-240.10.1.rt7.64.el8_3.x86_64",
            "RT-8.3.0.Z.MAIN:kernel-rt-debug-modules-extra-0:4.18.0-240.10.1.rt7.64.el8_3.x86_64",
            "RT-8.3.0.Z.MAIN:kernel-rt-debuginfo-0:4.18.0-240.10.1.rt7.64.el8_3.x86_64",
            "RT-8.3.0.Z.MAIN:kernel-rt-debuginfo-common-x86_64-0:4.18.0-240.10.1.rt7.64.el8_3.x86_64",
            "RT-8.3.0.Z.MAIN:kernel-rt-devel-0:4.18.0-240.10.1.rt7.64.el8_3.x86_64",
            "RT-8.3.0.Z.MAIN:kernel-rt-kvm-0:4.18.0-240.10.1.rt7.64.el8_3.x86_64",
            "RT-8.3.0.Z.MAIN:kernel-rt-modules-0:4.18.0-240.10.1.rt7.64.el8_3.x86_64",
            "RT-8.3.0.Z.MAIN:kernel-rt-modules-extra-0:4.18.0-240.10.1.rt7.64.el8_3.x86_64"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "attackComplexity": "LOW",
            "attackVector": "LOCAL",
            "availabilityImpact": "HIGH",
            "baseScore": 6.7,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "HIGH",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "products": [
            "NFV-8.3.0.Z.MAIN:kernel-rt-0:4.18.0-240.10.1.rt7.64.el8_3.src",
            "NFV-8.3.0.Z.MAIN:kernel-rt-0:4.18.0-240.10.1.rt7.64.el8_3.x86_64",
            "NFV-8.3.0.Z.MAIN:kernel-rt-core-0:4.18.0-240.10.1.rt7.64.el8_3.x86_64",
            "NFV-8.3.0.Z.MAIN:kernel-rt-debug-0:4.18.0-240.10.1.rt7.64.el8_3.x86_64",
            "NFV-8.3.0.Z.MAIN:kernel-rt-debug-core-0:4.18.0-240.10.1.rt7.64.el8_3.x86_64",
            "NFV-8.3.0.Z.MAIN:kernel-rt-debug-debuginfo-0:4.18.0-240.10.1.rt7.64.el8_3.x86_64",
            "NFV-8.3.0.Z.MAIN:kernel-rt-debug-devel-0:4.18.0-240.10.1.rt7.64.el8_3.x86_64",
            "NFV-8.3.0.Z.MAIN:kernel-rt-debug-kvm-0:4.18.0-240.10.1.rt7.64.el8_3.x86_64",
            "NFV-8.3.0.Z.MAIN:kernel-rt-debug-modules-0:4.18.0-240.10.1.rt7.64.el8_3.x86_64",
            "NFV-8.3.0.Z.MAIN:kernel-rt-debug-modules-extra-0:4.18.0-240.10.1.rt7.64.el8_3.x86_64",
            "NFV-8.3.0.Z.MAIN:kernel-rt-debuginfo-0:4.18.0-240.10.1.rt7.64.el8_3.x86_64",
            "NFV-8.3.0.Z.MAIN:kernel-rt-debuginfo-common-x86_64-0:4.18.0-240.10.1.rt7.64.el8_3.x86_64",
            "NFV-8.3.0.Z.MAIN:kernel-rt-devel-0:4.18.0-240.10.1.rt7.64.el8_3.x86_64",
            "NFV-8.3.0.Z.MAIN:kernel-rt-kvm-0:4.18.0-240.10.1.rt7.64.el8_3.x86_64",
            "NFV-8.3.0.Z.MAIN:kernel-rt-modules-0:4.18.0-240.10.1.rt7.64.el8_3.x86_64",
            "NFV-8.3.0.Z.MAIN:kernel-rt-modules-extra-0:4.18.0-240.10.1.rt7.64.el8_3.x86_64",
            "RT-8.3.0.Z.MAIN:kernel-rt-0:4.18.0-240.10.1.rt7.64.el8_3.src",
            "RT-8.3.0.Z.MAIN:kernel-rt-0:4.18.0-240.10.1.rt7.64.el8_3.x86_64",
            "RT-8.3.0.Z.MAIN:kernel-rt-core-0:4.18.0-240.10.1.rt7.64.el8_3.x86_64",
            "RT-8.3.0.Z.MAIN:kernel-rt-debug-0:4.18.0-240.10.1.rt7.64.el8_3.x86_64",
            "RT-8.3.0.Z.MAIN:kernel-rt-debug-core-0:4.18.0-240.10.1.rt7.64.el8_3.x86_64",
            "RT-8.3.0.Z.MAIN:kernel-rt-debug-debuginfo-0:4.18.0-240.10.1.rt7.64.el8_3.x86_64",
            "RT-8.3.0.Z.MAIN:kernel-rt-debug-devel-0:4.18.0-240.10.1.rt7.64.el8_3.x86_64",
            "RT-8.3.0.Z.MAIN:kernel-rt-debug-kvm-0:4.18.0-240.10.1.rt7.64.el8_3.x86_64",
            "RT-8.3.0.Z.MAIN:kernel-rt-debug-modules-0:4.18.0-240.10.1.rt7.64.el8_3.x86_64",
            "RT-8.3.0.Z.MAIN:kernel-rt-debug-modules-extra-0:4.18.0-240.10.1.rt7.64.el8_3.x86_64",
            "RT-8.3.0.Z.MAIN:kernel-rt-debuginfo-0:4.18.0-240.10.1.rt7.64.el8_3.x86_64",
            "RT-8.3.0.Z.MAIN:kernel-rt-debuginfo-common-x86_64-0:4.18.0-240.10.1.rt7.64.el8_3.x86_64",
            "RT-8.3.0.Z.MAIN:kernel-rt-devel-0:4.18.0-240.10.1.rt7.64.el8_3.x86_64",
            "RT-8.3.0.Z.MAIN:kernel-rt-kvm-0:4.18.0-240.10.1.rt7.64.el8_3.x86_64",
            "RT-8.3.0.Z.MAIN:kernel-rt-modules-0:4.18.0-240.10.1.rt7.64.el8_3.x86_64",
            "RT-8.3.0.Z.MAIN:kernel-rt-modules-extra-0:4.18.0-240.10.1.rt7.64.el8_3.x86_64"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Important"
        }
      ],
      "title": "kernel: Local buffer overflow in ctnetlink_parse_tuple_filter in net/netfilter/nf_conntrack_netlink.c"
    }
  ]
}


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 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.