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USN-7937-1 (UBUNTU-CVE-2021-47385)

Vulnerability from osv_ubuntu – Published: 2025-12-16 00:21 – Updated: 2026-08-05 23:36 – Source website
VLAI
Summary
linux-azure-fips vulnerabilities
Details

Jean-Claude Graf, Sandro Rüegge, Ali Hajiabadi, and Kaveh Razavi discovered that the Linux kernel contained insufficient branch predictor isolation between a guest and a userspace hypervisor for certain processors. This flaw is known as VMSCAPE. An attacker in a guest VM could possibly use this to expose sensitive information from the host OS. (CVE-2025-40300)

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: - Cryptographic API; - ACPI drivers; - DMA engine subsystem; - GPU drivers; - HSI subsystem; - Hardware monitoring drivers; - InfiniBand drivers; - Mailbox framework; - Network drivers; - Ethernet team driver; - AFS file system; - Ceph distributed file system; - Ext4 file system; - Network file system (NFS) server daemon; - NILFS2 file system; - File systems infrastructure; - KVM subsystem; - L3 Master device support module; - Timer subsystem; - Tracing infrastructure; - Memory management; - Appletalk network protocol; - DCCP (Datagram Congestion Control Protocol); - IPv6 networking; - Netfilter; - NET/ROM layer; - Open vSwitch; - SCTP protocol; - USB sound devices; (CVE-2021-47385, CVE-2022-49026, CVE-2022-49390, CVE-2023-52574, CVE-2023-52650, CVE-2024-41006, CVE-2024-49935, CVE-2024-49963, CVE-2024-50006, CVE-2024-50067, CVE-2024-50095, CVE-2024-50179, CVE-2024-50299, CVE-2024-53090, CVE-2024-53112, CVE-2024-53124, CVE-2024-53150, CVE-2024-53217, CVE-2024-56767, CVE-2024-58083, CVE-2025-21715, CVE-2025-21722, CVE-2025-21761, CVE-2025-21791, CVE-2025-21811, CVE-2025-21855, CVE-2025-37838, CVE-2025-37958, CVE-2025-38352, CVE-2025-38666, CVE-2025-39964, CVE-2025-40018)

References
https://ubuntu.com/security/notices/USN-7937-1 ADVISORY
https://ubuntu.com/security/CVE-2021-47385 REPORT
https://ubuntu.com/security/CVE-2022-49026 REPORT
https://ubuntu.com/security/CVE-2022-49390 REPORT
https://ubuntu.com/security/CVE-2023-52574 REPORT
https://ubuntu.com/security/CVE-2023-52650 REPORT
https://ubuntu.com/security/CVE-2024-41006 REPORT
https://ubuntu.com/security/CVE-2024-49935 REPORT
https://ubuntu.com/security/CVE-2024-49963 REPORT
https://ubuntu.com/security/CVE-2024-50006 REPORT
https://ubuntu.com/security/CVE-2024-50067 REPORT
https://ubuntu.com/security/CVE-2024-50095 REPORT
https://ubuntu.com/security/CVE-2024-50179 REPORT
https://ubuntu.com/security/CVE-2024-50299 REPORT
https://ubuntu.com/security/CVE-2024-53090 REPORT
https://ubuntu.com/security/CVE-2024-53112 REPORT
https://ubuntu.com/security/CVE-2024-53124 REPORT
https://ubuntu.com/security/CVE-2024-53150 REPORT
https://ubuntu.com/security/CVE-2024-53217 REPORT
https://ubuntu.com/security/CVE-2024-56767 REPORT
https://ubuntu.com/security/CVE-2024-58083 REPORT
https://ubuntu.com/security/CVE-2025-21715 REPORT
https://ubuntu.com/security/CVE-2025-21722 REPORT
https://ubuntu.com/security/CVE-2025-21761 REPORT
https://ubuntu.com/security/CVE-2025-21791 REPORT
https://ubuntu.com/security/CVE-2025-21811 REPORT
https://ubuntu.com/security/CVE-2025-21855 REPORT
https://ubuntu.com/security/CVE-2025-37838 REPORT
https://ubuntu.com/security/CVE-2025-37958 REPORT
https://ubuntu.com/security/CVE-2025-38352 REPORT
https://ubuntu.com/security/CVE-2025-38666 REPORT
https://ubuntu.com/security/CVE-2025-39964 REPORT
https://ubuntu.com/security/CVE-2025-40018 REPORT
https://ubuntu.com/security/CVE-2025-40300 REPORT

{
  "affected": [
    {
      "database_specific": {
        "cves_map": {
          "cves": [
            {
              "id": "CVE-2021-47385",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2022-49026",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "high",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2022-49390",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "high",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2023-52574",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2023-52650",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2024-41006",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2024-49935",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2024-49963",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2024-50006",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2024-50067",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2024-50095",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2024-50179",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2024-50299",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "high",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2024-53090",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2024-53112",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2024-53124",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2024-53150",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "high",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2024-53217",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "high",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2024-56767",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2024-58083",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "high",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2025-21715",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "high",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2025-21722",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2025-21761",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "high",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2025-21791",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "high",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2025-21811",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "low",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2025-21855",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2025-37838",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2025-37958",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2025-38352",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "high",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2025-38666",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "high",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2025-39964",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L",
                  "type": "CVSS_V3"
                },
                {
                  "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2025-40018",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2025-40300",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "high",
                  "type": "Ubuntu"
                }
              ]
            }
          ],
          "ecosystem": "Ubuntu:Pro:FIPS-updates:18.04:LTS"
        }
      },
      "ecosystem_specific": {
        "availability": "Available with Ubuntu Pro: https://ubuntu.com/pro",
        "binaries": [
          {
            "binary_name": "linux-azure-fips-cloud-tools-4.15.0-2104",
            "binary_version": "4.15.0-2104.110"
          },
          {
            "binary_name": "linux-azure-fips-headers-4.15.0-2104",
            "binary_version": "4.15.0-2104.110"
          },
          {
            "binary_name": "linux-azure-fips-tools-4.15.0-2104",
            "binary_version": "4.15.0-2104.110"
          },
          {
            "binary_name": "linux-buildinfo-4.15.0-2104-azure-fips",
            "binary_version": "4.15.0-2104.110"
          },
          {
            "binary_name": "linux-cloud-tools-4.15.0-2104-azure-fips",
            "binary_version": "4.15.0-2104.110"
          },
          {
            "binary_name": "linux-headers-4.15.0-2104-azure-fips",
            "binary_version": "4.15.0-2104.110"
          },
          {
            "binary_name": "linux-image-unsigned-4.15.0-2104-azure-fips",
            "binary_version": "4.15.0-2104.110"
          },
          {
            "binary_name": "linux-image-unsigned-hmac-4.15.0-2104-azure-fips",
            "binary_version": "4.15.0-2104.110"
          },
          {
            "binary_name": "linux-modules-4.15.0-2104-azure-fips",
            "binary_version": "4.15.0-2104.110"
          },
          {
            "binary_name": "linux-modules-extra-4.15.0-2104-azure-fips",
            "binary_version": "4.15.0-2104.110"
          },
          {
            "binary_name": "linux-tools-4.15.0-2104-azure-fips",
            "binary_version": "4.15.0-2104.110"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:FIPS-updates:18.04:LTS",
        "name": "linux-azure-fips",
        "purl": "pkg:deb/ubuntu/linux-azure-fips@4.15.0-2104.110?arch=source\u0026distro=fips-updates/bionic"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "4.15.0-2104.110"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "4.15.0-1002.2",
        "4.15.0-2006.7",
        "4.15.0-2007.8",
        "4.15.0-2008.9",
        "4.15.0-2009.10",
        "4.15.0-2012.14",
        "4.15.0-2013.15",
        "4.15.0-2015.17",
        "4.15.0-2016.18",
        "4.15.0-2017.20",
        "4.15.0-2018.21",
        "4.15.0-2020.23",
        "4.15.0-2021.24",
        "4.15.0-2022.25",
        "4.15.0-2023.26",
        "4.15.0-2024.27",
        "4.15.0-2025.28",
        "4.15.0-2026.29",
        "4.15.0-2027.30",
        "4.15.0-2030.33",
        "4.15.0-2033.37",
        "4.15.0-2034.38",
        "4.15.0-2035.39",
        "4.15.0-2036.40",
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        "4.15.0-2038.42",
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        "4.15.0-2041.45",
        "4.15.0-2042.46",
        "4.15.0-2043.47",
        "4.15.0-2045.49",
        "4.15.0-2046.50",
        "4.15.0-2047.51",
        "4.15.0-2048.52",
        "4.15.0-2049.53",
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        "4.15.0-2053.58",
        "4.15.0-2056.62",
        "4.15.0-2057.63",
        "4.15.0-2059.65",
        "4.15.0-2060.66",
        "4.15.0-2062.68",
        "4.15.0-2066.72",
        "4.15.0-2067.73",
        "4.15.0-2068.74",
        "4.15.0-2070.76",
        "4.15.0-2071.77",
        "4.15.0-2072.78",
        "4.15.0-2073.79",
        "4.15.0-2074.80",
        "4.15.0-2075.81",
        "4.15.0-2076.82",
        "4.15.0-2077.83",
        "4.15.0-2078.84",
        "4.15.0-2079.85",
        "4.15.0-2080.86",
        "4.15.0-2081.87",
        "4.15.0-2082.88",
        "4.15.0-2084.90",
        "4.15.0-2085.91",
        "4.15.0-2086.92",
        "4.15.0-2087.93",
        "4.15.0-2088.94",
        "4.15.0-2089.95",
        "4.15.0-2090.96",
        "4.15.0-2091.97",
        "4.15.0-2092.98",
        "4.15.0-2093.99",
        "4.15.0-2094.100",
        "4.15.0-2095.101",
        "4.15.0-2096.102",
        "4.15.0-2097.103",
        "4.15.0-2098.104",
        "4.15.0-2099.105",
        "4.15.0-2100.106",
        "4.15.0-2101.107",
        "4.15.0-2102.108"
      ]
    }
  ],
  "aliases": [],
  "details": "Jean-Claude Graf, Sandro R\u00fcegge, Ali Hajiabadi, and Kaveh Razavi discovered\nthat the Linux kernel contained insufficient branch predictor isolation\nbetween a guest and a userspace hypervisor for certain processors. This\nflaw is known as VMSCAPE. An attacker in a guest VM could possibly use this\nto expose sensitive information from the host OS. (CVE-2025-40300)\n\nSeveral 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  - Cryptographic API;\n  - ACPI drivers;\n  - DMA engine subsystem;\n  - GPU drivers;\n  - HSI subsystem;\n  - Hardware monitoring drivers;\n  - InfiniBand drivers;\n  - Mailbox framework;\n  - Network drivers;\n  - Ethernet team driver;\n  - AFS file system;\n  - Ceph distributed file system;\n  - Ext4 file system;\n  - Network file system (NFS) server daemon;\n  - NILFS2 file system;\n  - File systems infrastructure;\n  - KVM subsystem;\n  - L3 Master device support module;\n  - Timer subsystem;\n  - Tracing infrastructure;\n  - Memory management;\n  - Appletalk network protocol;\n  - DCCP (Datagram Congestion Control Protocol);\n  - IPv6 networking;\n  - Netfilter;\n  - NET/ROM layer;\n  - Open vSwitch;\n  - SCTP protocol;\n  - USB sound devices;\n(CVE-2021-47385, CVE-2022-49026, CVE-2022-49390, CVE-2023-52574,\nCVE-2023-52650, CVE-2024-41006, CVE-2024-49935, CVE-2024-49963,\nCVE-2024-50006, CVE-2024-50067, CVE-2024-50095, CVE-2024-50179,\nCVE-2024-50299, CVE-2024-53090, CVE-2024-53112, CVE-2024-53124,\nCVE-2024-53150, CVE-2024-53217, CVE-2024-56767, CVE-2024-58083,\nCVE-2025-21715, CVE-2025-21722, CVE-2025-21761, CVE-2025-21791,\nCVE-2025-21811, CVE-2025-21855, CVE-2025-37838, CVE-2025-37958,\nCVE-2025-38352, CVE-2025-38666, CVE-2025-39964, CVE-2025-40018)\n",
  "id": "USN-7937-1",
  "modified": "2026-08-05T23:36:13Z",
  "published": "2025-12-16T00:21:35Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-7937-1"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2021-47385"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2022-49026"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2022-49390"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2023-52574"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2023-52650"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2024-41006"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2024-49935"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2024-49963"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2024-50006"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2024-50067"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2024-50095"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2024-50179"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2024-50299"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2024-53090"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2024-53112"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2024-53124"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2024-53150"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2024-53217"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2024-56767"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2024-58083"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2025-21715"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2025-21722"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2025-21761"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2025-21791"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2025-21811"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2025-21855"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2025-37838"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2025-37958"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2025-38352"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2025-38666"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2025-39964"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2025-40018"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2025-40300"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "summary": "linux-azure-fips vulnerabilities",
  "upstream": [
    "UBUNTU-CVE-2021-47385",
    "UBUNTU-CVE-2022-49026",
    "UBUNTU-CVE-2022-49390",
    "UBUNTU-CVE-2023-52574",
    "UBUNTU-CVE-2023-52650",
    "UBUNTU-CVE-2024-41006",
    "UBUNTU-CVE-2024-49935",
    "UBUNTU-CVE-2024-49963",
    "UBUNTU-CVE-2024-50006",
    "UBUNTU-CVE-2024-50067",
    "UBUNTU-CVE-2024-50095",
    "UBUNTU-CVE-2024-50179",
    "UBUNTU-CVE-2024-50299",
    "UBUNTU-CVE-2024-53090",
    "UBUNTU-CVE-2024-53112",
    "UBUNTU-CVE-2024-53124",
    "UBUNTU-CVE-2024-53150",
    "UBUNTU-CVE-2024-53217",
    "UBUNTU-CVE-2024-56767",
    "UBUNTU-CVE-2024-58083",
    "UBUNTU-CVE-2025-21715",
    "UBUNTU-CVE-2025-21722",
    "UBUNTU-CVE-2025-21761",
    "UBUNTU-CVE-2025-21791",
    "UBUNTU-CVE-2025-21811",
    "UBUNTU-CVE-2025-21855",
    "UBUNTU-CVE-2025-37838",
    "UBUNTU-CVE-2025-37958",
    "UBUNTU-CVE-2025-38352",
    "UBUNTU-CVE-2025-38666",
    "UBUNTU-CVE-2025-39964",
    "UBUNTU-CVE-2025-40018",
    "UBUNTU-CVE-2025-40300"
  ]
}



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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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Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.


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