USN-7854-1

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Source
https://ubuntu.com/security/notices/USN-7854-1
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-7854-1.json
JSON Data
https://api.test.osv.dev/v1/vulns/USN-7854-1
Upstream
Related
Published
2025-10-30T19:48:12.622442Z
Modified
2025-10-31T10:32:22.464572Z
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)

References

Affected packages

Ubuntu:Pro:18.04:LTS / linux-kvm

Package

Name
linux-kvm
Purl
pkg:deb/ubuntu/linux-kvm@4.15.0-1168.173?arch=source&distro=esm-infra/bionic

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
4.15.0-1168.173

Affected versions

4.*

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

Ecosystem specific 

{
    "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"
        }
    ],
    "availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro"
}

Database specific

cves_map

{
    "cves": [
        {
            "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-2023-52574"
        },
        {
            "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:H/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: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:H/I:H/A:H",
                    "type": "CVSS_V3"
                },
                {
                    "score": "medium",
                    "type": "Ubuntu"
                }
            ],
            "id": "CVE-2024-49924"
        },
        {
            "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-2024-50006"
        },
        {
            "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-2024-50299"
        },
        {
            "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-2024-53124"
        },
        {
            "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-2024-53150"
        },
        {
            "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-2024-56767"
        },
        {
            "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-2025-21796"
        },
        {
            "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-2025-37785"
        },
        {
            "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-2025-37838"
        },
        {
            "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-2025-38352"
        },
        {
            "severity": [
                {
                    "score": "medium",
                    "type": "Ubuntu"
                }
            ],
            "id": "CVE-2025-38477"
        },
        {
            "severity": [
                {
                    "score": "medium",
                    "type": "Ubuntu"
                }
            ],
            "id": "CVE-2025-38617"
        },
        {
            "severity": [
                {
                    "score": "medium",
                    "type": "Ubuntu"
                }
            ],
            "id": "CVE-2025-38618"
        },
        {
            "severity": [
                {
                    "score": "high",
                    "type": "Ubuntu"
                }
            ],
            "id": "CVE-2025-40300"
        }
    ],
    "ecosystem": "Ubuntu:Pro:18.04:LTS"
}