GCVE Workshop - 22 September 2026 (14:00-18:00), Luxembourg Before The Vulnopticon Conference - Registration
usn-8714-2
Vulnerability from osv_ubuntu
Published
2026-09-04 17:55
Modified
2026-09-04 17:55
Summary
linux-aws-5.4, linux-gcp, linux-gcp-5.4 vulnerabilities
Details

Several security issues were discovered in the Linux kernel. An attacker could possibly use these to compromise the system. This update corrects flaws in the following subsystems: - OCFS2 file system; - SCTP protocol; (CVE-2026-53043, CVE-2026-53224, CVE-2026-53225, CVE-2026-53246, CVE-2026-53309)


{
  "affected": [
    {
      "database_specific": {
        "cves_map": {
          "cves": [
            {
              "id": "CVE-2026-53043",
              "severity": [
                {
                  "score": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N",
                  "type": "CVSS_V4"
                },
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "high",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2026-53224",
              "severity": [
                {
                  "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:H/SC:N/SI:N/SA:N",
                  "type": "CVSS_V4"
                },
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "high",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2026-53225",
              "severity": [
                {
                  "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:N/SI:N/SA:N",
                  "type": "CVSS_V4"
                },
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "negligible",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2026-53246",
              "severity": [
                {
                  "score": "CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:H/SC:N/SI:N/SA:N",
                  "type": "CVSS_V4"
                },
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2026-53309",
              "severity": [
                {
                  "score": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N",
                  "type": "CVSS_V4"
                },
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            }
          ],
          "ecosystem": "Ubuntu:Pro:18.04:LTS"
        }
      },
      "ecosystem_specific": {
        "availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro",
        "binaries": [
          {
            "binary_name": "linux-aws-5.4-cloud-tools-5.4.0-1163",
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            "binary_name": "linux-aws-5.4-headers-5.4.0-1163",
            "binary_version": "5.4.0-1163.174~18.04.1"
          },
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            "binary_name": "linux-aws-5.4-tools-5.4.0-1163",
            "binary_version": "5.4.0-1163.174~18.04.1"
          },
          {
            "binary_name": "linux-buildinfo-5.4.0-1163-aws",
            "binary_version": "5.4.0-1163.174~18.04.1"
          },
          {
            "binary_name": "linux-cloud-tools-5.4.0-1163-aws",
            "binary_version": "5.4.0-1163.174~18.04.1"
          },
          {
            "binary_name": "linux-headers-5.4.0-1163-aws",
            "binary_version": "5.4.0-1163.174~18.04.1"
          },
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            "binary_name": "linux-image-unsigned-5.4.0-1163-aws",
            "binary_version": "5.4.0-1163.174~18.04.1"
          },
          {
            "binary_name": "linux-modules-5.4.0-1163-aws",
            "binary_version": "5.4.0-1163.174~18.04.1"
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            "binary_name": "linux-modules-extra-5.4.0-1163-aws",
            "binary_version": "5.4.0-1163.174~18.04.1"
          },
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            "binary_name": "linux-tools-5.4.0-1163-aws",
            "binary_version": "5.4.0-1163.174~18.04.1"
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      },
      "package": {
        "ecosystem": "Ubuntu:Pro:18.04:LTS",
        "name": "linux-aws-5.4",
        "purl": "pkg:deb/ubuntu/linux-aws-5.4@5.4.0-1163.174~18.04.1?arch=source\u0026distro=esm-infra/bionic"
      },
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          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "5.4.0-1163.174~18.04.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
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    },
    {
      "database_specific": {
        "cves_map": {
          "cves": [
            {
              "id": "CVE-2026-53043",
              "severity": [
                {
                  "score": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N",
                  "type": "CVSS_V4"
                },
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "high",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2026-53224",
              "severity": [
                {
                  "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:H/SC:N/SI:N/SA:N",
                  "type": "CVSS_V4"
                },
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "high",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2026-53225",
              "severity": [
                {
                  "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:N/SI:N/SA:N",
                  "type": "CVSS_V4"
                },
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "negligible",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2026-53246",
              "severity": [
                {
                  "score": "CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:H/SC:N/SI:N/SA:N",
                  "type": "CVSS_V4"
                },
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2026-53309",
              "severity": [
                {
                  "score": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N",
                  "type": "CVSS_V4"
                },
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            }
          ],
          "ecosystem": "Ubuntu:Pro:18.04:LTS"
        }
      },
      "ecosystem_specific": {
        "availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro",
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            "binary_version": "5.4.0-1166.175~18.04.1"
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            "binary_name": "linux-gcp-5.4-headers-5.4.0-1166",
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        "name": "linux-gcp-5.4",
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          "type": "ECOSYSTEM"
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        "5.4.0-1138.147~18.04.1",
        "5.4.0-1139.148~18.04.1",
        "5.4.0-1140.149~18.04.1",
        "5.4.0-1141.150~18.04.1",
        "5.4.0-1142.151~18.04.1",
        "5.4.0-1143.152~18.04.1",
        "5.4.0-1145.154~18.04.1",
        "5.4.0-1147.156~18.04.1",
        "5.4.0-1148.157~18.04.1",
        "5.4.0-1149.158~18.04.1",
        "5.4.0-1150.159~18.04.1",
        "5.4.0-1151.160~18.04.1",
        "5.4.0-1152.161~18.04.1",
        "5.4.0-1153.162~18.04.1",
        "5.4.0-1154.163~18.04.1",
        "5.4.0-1155.164~18.04.1",
        "5.4.0-1156.165~18.04.1",
        "5.4.0-1157.166~18.04.1",
        "5.4.0-1159.168~18.04.1",
        "5.4.0-1160.169~18.04.1",
        "5.4.0-1161.170~18.04.1",
        "5.4.0-1162.171~18.04.1",
        "5.4.0-1163.172~18.04.1",
        "5.4.0-1164.173~18.04.1",
        "5.4.0-1165.174~18.04.1"
      ]
    },
    {
      "database_specific": {
        "cves_map": {
          "cves": [
            {
              "id": "CVE-2026-53043",
              "severity": [
                {
                  "score": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N",
                  "type": "CVSS_V4"
                },
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "high",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2026-53224",
              "severity": [
                {
                  "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:H/SC:N/SI:N/SA:N",
                  "type": "CVSS_V4"
                },
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "high",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2026-53225",
              "severity": [
                {
                  "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:N/SI:N/SA:N",
                  "type": "CVSS_V4"
                },
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "negligible",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2026-53246",
              "severity": [
                {
                  "score": "CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:H/SC:N/SI:N/SA:N",
                  "type": "CVSS_V4"
                },
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2026-53309",
              "severity": [
                {
                  "score": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N",
                  "type": "CVSS_V4"
                },
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            }
          ],
          "ecosystem": "Ubuntu:Pro:20.04:LTS"
        }
      },
      "ecosystem_specific": {
        "availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro",
        "binaries": [
          {
            "binary_name": "linux-buildinfo-5.4.0-1166-gcp",
            "binary_version": "5.4.0-1166.175"
          },
          {
            "binary_name": "linux-gcp-headers-5.4.0-1166",
            "binary_version": "5.4.0-1166.175"
          },
          {
            "binary_name": "linux-gcp-tools-5.4.0-1166",
            "binary_version": "5.4.0-1166.175"
          },
          {
            "binary_name": "linux-headers-5.4.0-1166-gcp",
            "binary_version": "5.4.0-1166.175"
          },
          {
            "binary_name": "linux-image-unsigned-5.4.0-1166-gcp",
            "binary_version": "5.4.0-1166.175"
          },
          {
            "binary_name": "linux-modules-5.4.0-1166-gcp",
            "binary_version": "5.4.0-1166.175"
          },
          {
            "binary_name": "linux-modules-extra-5.4.0-1166-gcp",
            "binary_version": "5.4.0-1166.175"
          },
          {
            "binary_name": "linux-tools-5.4.0-1166-gcp",
            "binary_version": "5.4.0-1166.175"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:20.04:LTS",
        "name": "linux-gcp",
        "purl": "pkg:deb/ubuntu/linux-gcp@5.4.0-1166.175?arch=source\u0026distro=esm-infra/focal"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "5.4.0-1166.175"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "5.3.0-1004.4",
        "5.3.0-1009.10",
        "5.3.0-1011.12",
        "5.4.0-1005.5",
        "5.4.0-1007.7",
        "5.4.0-1008.8",
        "5.4.0-1009.9",
        "5.4.0-1011.11",
        "5.4.0-1015.15",
        "5.4.0-1018.18",
        "5.4.0-1019.19",
        "5.4.0-1021.21",
        "5.4.0-1022.22",
        "5.4.0-1024.24",
        "5.4.0-1025.25",
        "5.4.0-1028.29",
        "5.4.0-1029.31",
        "5.4.0-1030.32",
        "5.4.0-1032.34",
        "5.4.0-1033.35",
        "5.4.0-1034.37",
        "5.4.0-1036.39",
        "5.4.0-1037.40",
        "5.4.0-1038.41",
        "5.4.0-1040.43",
        "5.4.0-1041.44",
        "5.4.0-1042.45",
        "5.4.0-1043.46",
        "5.4.0-1044.47",
        "5.4.0-1046.49",
        "5.4.0-1049.53",
        "5.4.0-1051.55",
        "5.4.0-1052.56",
        "5.4.0-1053.57",
        "5.4.0-1055.59",
        "5.4.0-1056.60",
        "5.4.0-1057.61",
        "5.4.0-1058.62",
        "5.4.0-1059.63",
        "5.4.0-1060.64",
        "5.4.0-1062.66",
        "5.4.0-1063.67",
        "5.4.0-1064.68",
        "5.4.0-1065.69",
        "5.4.0-1067.71",
        "5.4.0-1068.72",
        "5.4.0-1069.73",
        "5.4.0-1072.77",
        "5.4.0-1073.78",
        "5.4.0-1075.80",
        "5.4.0-1078.84",
        "5.4.0-1080.87",
        "5.4.0-1083.91",
        "5.4.0-1084.92",
        "5.4.0-1086.94",
        "5.4.0-1087.95",
        "5.4.0-1089.97",
        "5.4.0-1090.98",
        "5.4.0-1092.101",
        "5.4.0-1093.102",
        "5.4.0-1096.105",
        "5.4.0-1097.106",
        "5.4.0-1098.107",
        "5.4.0-1100.109",
        "5.4.0-1101.110",
        "5.4.0-1102.111",
        "5.4.0-1103.112",
        "5.4.0-1104.113",
        "5.4.0-1105.114",
        "5.4.0-1106.115",
        "5.4.0-1107.116",
        "5.4.0-1108.117",
        "5.4.0-1109.118",
        "5.4.0-1110.119",
        "5.4.0-1111.120",
        "5.4.0-1112.121",
        "5.4.0-1113.122",
        "5.4.0-1115.124",
        "5.4.0-1116.125",
        "5.4.0-1117.126",
        "5.4.0-1118.127",
        "5.4.0-1120.129",
        "5.4.0-1121.130",
        "5.4.0-1122.131",
        "5.4.0-1123.132",
        "5.4.0-1124.133",
        "5.4.0-1125.134",
        "5.4.0-1126.135",
        "5.4.0-1127.136",
        "5.4.0-1128.137",
        "5.4.0-1129.138",
        "5.4.0-1130.139",
        "5.4.0-1131.140",
        "5.4.0-1132.141",
        "5.4.0-1133.142",
        "5.4.0-1134.143",
        "5.4.0-1135.144",
        "5.4.0-1136.145",
        "5.4.0-1137.146",
        "5.4.0-1138.147",
        "5.4.0-1139.148",
        "5.4.0-1140.149",
        "5.4.0-1141.150",
        "5.4.0-1142.151",
        "5.4.0-1143.152",
        "5.4.0-1145.154",
        "5.4.0-1146.155",
        "5.4.0-1147.156",
        "5.4.0-1148.157",
        "5.4.0-1149.158",
        "5.4.0-1150.159",
        "5.4.0-1151.160",
        "5.4.0-1152.161",
        "5.4.0-1153.162",
        "5.4.0-1154.163",
        "5.4.0-1155.164",
        "5.4.0-1156.165",
        "5.4.0-1157.166",
        "5.4.0-1159.168",
        "5.4.0-1160.169",
        "5.4.0-1161.170",
        "5.4.0-1162.171",
        "5.4.0-1163.172",
        "5.4.0-1164.173",
        "5.4.0-1165.174"
      ]
    }
  ],
  "aliases": [],
  "details": "Several security issues were discovered in the Linux kernel.\nAn attacker could possibly use these to compromise the system.\nThis update corrects flaws in the following subsystems:\n  - OCFS2 file system;\n  - SCTP protocol;\n(CVE-2026-53043, CVE-2026-53224, CVE-2026-53225, CVE-2026-53246,\nCVE-2026-53309)\n",
  "id": "USN-8714-2",
  "modified": "2026-09-04T17:55:21Z",
  "published": "2026-09-04T17:55:21Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-8714-2"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2026-53043"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2026-53224"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2026-53225"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2026-53246"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2026-53309"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "summary": "linux-aws-5.4, linux-gcp, linux-gcp-5.4 vulnerabilities",
  "upstream": [
    "UBUNTU-CVE-2026-53043",
    "UBUNTU-CVE-2026-53224",
    "UBUNTU-CVE-2026-53225",
    "UBUNTU-CVE-2026-53246",
    "UBUNTU-CVE-2026-53309"
  ]
}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

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.

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Detection rules are retrieved from Rulezet.

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