usn-7854-1
Vulnerability from osv_ubuntu
Published
2025-10-30 19:48
Modified
2026-06-03 10:46
Summary
linux-kvm 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: - DMA engine subsystem; - GPU drivers; - HSI subsystem; - Ethernet team driver; - Framebuffer layer; - BTRFS file system; - Ext4 file system; - Network file system (NFS) server daemon; - Timer subsystem; - DCCP (Datagram Congestion Control Protocol); - IPv6 networking; - NET/ROM layer; - Packet sockets; - Network traffic control; - SCTP protocol; - VMware vSockets driver; - USB sound devices; (CVE-2023-52574, CVE-2023-52650, CVE-2024-35849, CVE-2024-41006, CVE-2024-49924, CVE-2024-50006, CVE-2024-50299, CVE-2024-53124, CVE-2024-53150, CVE-2024-56767, CVE-2025-21796, CVE-2025-37785, CVE-2025-37838, CVE-2025-38352, CVE-2025-38477, CVE-2025-38617, CVE-2025-38618)


{
  "affected": [
    {
      "database_specific": {
        "cves_map": {
          "cves": [
            {
              "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": "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-2024-35849",
              "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": "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-2024-49924",
              "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-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-2024-50299",
              "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": "high",
                  "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": "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-2024-56767",
              "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-2025-21796",
              "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-2025-37785",
              "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": "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-2025-38352",
              "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": "high",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2025-38477",
              "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-2025-38617",
              "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-2025-38618",
              "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:18.04:LTS"
        }
      },
      "ecosystem_specific": {
        "availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro",
        "binaries": [
          {
            "binary_name": "linux-buildinfo-4.15.0-1168-kvm",
            "binary_version": "4.15.0-1168.173"
          },
          {
            "binary_name": "linux-headers-4.15.0-1168-kvm",
            "binary_version": "4.15.0-1168.173"
          },
          {
            "binary_name": "linux-image-4.15.0-1168-kvm",
            "binary_version": "4.15.0-1168.173"
          },
          {
            "binary_name": "linux-kvm-headers-4.15.0-1168",
            "binary_version": "4.15.0-1168.173"
          },
          {
            "binary_name": "linux-kvm-tools-4.15.0-1168",
            "binary_version": "4.15.0-1168.173"
          },
          {
            "binary_name": "linux-modules-4.15.0-1168-kvm",
            "binary_version": "4.15.0-1168.173"
          },
          {
            "binary_name": "linux-tools-4.15.0-1168-kvm",
            "binary_version": "4.15.0-1168.173"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:18.04:LTS",
        "name": "linux-kvm",
        "purl": "pkg:deb/ubuntu/linux-kvm@4.15.0-1168.173?arch=source\u0026distro=esm-infra/bionic"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "4.15.0-1168.173"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "4.15.0-1002.2",
        "4.15.0-1003.3",
        "4.15.0-1004.4",
        "4.15.0-1006.6",
        "4.15.0-1008.8",
        "4.15.0-1010.10",
        "4.15.0-1011.11",
        "4.15.0-1012.12",
        "4.15.0-1016.16",
        "4.15.0-1017.17",
        "4.15.0-1019.19",
        "4.15.0-1020.20",
        "4.15.0-1021.21",
        "4.15.0-1023.23",
        "4.15.0-1025.25",
        "4.15.0-1026.26",
        "4.15.0-1027.27",
        "4.15.0-1028.28",
        "4.15.0-1029.29",
        "4.15.0-1030.30",
        "4.15.0-1031.31",
        "4.15.0-1032.32",
        "4.15.0-1034.34",
        "4.15.0-1035.35",
        "4.15.0-1036.36",
        "4.15.0-1038.38",
        "4.15.0-1039.39",
        "4.15.0-1042.42",
        "4.15.0-1043.43",
        "4.15.0-1044.44",
        "4.15.0-1046.46",
        "4.15.0-1047.47",
        "4.15.0-1048.48",
        "4.15.0-1050.50",
        "4.15.0-1051.51",
        "4.15.0-1052.52",
        "4.15.0-1053.53",
        "4.15.0-1056.57",
        "4.15.0-1058.59",
        "4.15.0-1059.60",
        "4.15.0-1060.61",
        "4.15.0-1067.68",
        "4.15.0-1069.70",
        "4.15.0-1071.72",
        "4.15.0-1072.73",
        "4.15.0-1074.75",
        "4.15.0-1075.76",
        "4.15.0-1077.79",
        "4.15.0-1079.81",
        "4.15.0-1081.83",
        "4.15.0-1082.84",
        "4.15.0-1084.86",
        "4.15.0-1085.87",
        "4.15.0-1086.88",
        "4.15.0-1087.89",
        "4.15.0-1088.90",
        "4.15.0-1089.91",
        "4.15.0-1090.92",
        "4.15.0-1091.93",
        "4.15.0-1092.94",
        "4.15.0-1094.96",
        "4.15.0-1097.99",
        "4.15.0-1098.100",
        "4.15.0-1099.101",
        "4.15.0-1100.102",
        "4.15.0-1101.103",
        "4.15.0-1102.104",
        "4.15.0-1103.105",
        "4.15.0-1105.107",
        "4.15.0-1106.108",
        "4.15.0-1107.109",
        "4.15.0-1109.112",
        "4.15.0-1110.113",
        "4.15.0-1112.115",
        "4.15.0-1113.116",
        "4.15.0-1114.117",
        "4.15.0-1116.119",
        "4.15.0-1119.123",
        "4.15.0-1122.127",
        "4.15.0-1123.128",
        "4.15.0-1125.130",
        "4.15.0-1126.131",
        "4.15.0-1127.132",
        "4.15.0-1128.133",
        "4.15.0-1129.134",
        "4.15.0-1132.137",
        "4.15.0-1133.138",
        "4.15.0-1134.139",
        "4.15.0-1135.140",
        "4.15.0-1136.141",
        "4.15.0-1137.142",
        "4.15.0-1138.143",
        "4.15.0-1139.144",
        "4.15.0-1140.145",
        "4.15.0-1141.146",
        "4.15.0-1142.147",
        "4.15.0-1143.148",
        "4.15.0-1144.149",
        "4.15.0-1145.150",
        "4.15.0-1146.151",
        "4.15.0-1147.152",
        "4.15.0-1148.153",
        "4.15.0-1149.154",
        "4.15.0-1150.155",
        "4.15.0-1151.156",
        "4.15.0-1152.157",
        "4.15.0-1153.158",
        "4.15.0-1154.159",
        "4.15.0-1155.160",
        "4.15.0-1156.161",
        "4.15.0-1157.162",
        "4.15.0-1158.163",
        "4.15.0-1159.164",
        "4.15.0-1160.165",
        "4.15.0-1161.166",
        "4.15.0-1162.167",
        "4.15.0-1163.168",
        "4.15.0-1164.169",
        "4.15.0-1165.170",
        "4.15.0-1166.171",
        "4.15.0-1167.172"
      ]
    }
  ],
  "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  - DMA engine subsystem;\n  - GPU drivers;\n  - HSI subsystem;\n  - Ethernet team driver;\n  - Framebuffer layer;\n  - BTRFS file system;\n  - Ext4 file system;\n  - Network file system (NFS) server daemon;\n  - Timer subsystem;\n  - DCCP (Datagram Congestion Control Protocol);\n  - IPv6 networking;\n  - NET/ROM layer;\n  - Packet sockets;\n  - Network traffic control;\n  - SCTP protocol;\n  - VMware vSockets driver;\n  - USB sound devices;\n(CVE-2023-52574, CVE-2023-52650, CVE-2024-35849, CVE-2024-41006,\nCVE-2024-49924, CVE-2024-50006, CVE-2024-50299, CVE-2024-53124,\nCVE-2024-53150, CVE-2024-56767, CVE-2025-21796, CVE-2025-37785,\nCVE-2025-37838, CVE-2025-38352, CVE-2025-38477, CVE-2025-38617,\nCVE-2025-38618)\n",
  "id": "USN-7854-1",
  "modified": "2026-06-03T10:46:14Z",
  "published": "2025-10-30T19:48:12Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-7854-1"
    },
    {
      "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-2024-35849"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2024-41006"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2024-49924"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2024-50006"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2024-50299"
    },
    {
      "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-2024-56767"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2025-21796"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2025-37785"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2025-37838"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2025-38352"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2025-38477"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2025-38617"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2025-38618"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2025-40300"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "summary": "linux-kvm vulnerabilities",
  "upstream": [
    "UBUNTU-CVE-2023-52574",
    "UBUNTU-CVE-2023-52650",
    "UBUNTU-CVE-2024-35849",
    "UBUNTU-CVE-2024-41006",
    "UBUNTU-CVE-2024-49924",
    "UBUNTU-CVE-2024-50006",
    "UBUNTU-CVE-2024-50299",
    "UBUNTU-CVE-2024-53124",
    "UBUNTU-CVE-2024-53150",
    "UBUNTU-CVE-2024-56767",
    "UBUNTU-CVE-2025-21796",
    "UBUNTU-CVE-2025-37785",
    "UBUNTU-CVE-2025-37838",
    "UBUNTU-CVE-2025-38352",
    "UBUNTU-CVE-2025-38477",
    "UBUNTU-CVE-2025-38617",
    "UBUNTU-CVE-2025-38618",
    "UBUNTU-CVE-2025-40300"
  ]
}



Log in or create an account to share your comment.




Tags
Taxonomy of the tags.


Loading…

Loading…

Loading…

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.

Loading…

Detection rules are retrieved from Rulezet.

Loading…

Loading…