USN-7864-1

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Source
https://ubuntu.com/security/notices/USN-7864-1
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-7864-1.json
JSON Data
https://api.test.osv.dev/v1/vulns/USN-7864-1
Upstream
Related
Published
2025-11-07T09:01:59.508793Z
Modified
2025-11-10T07:18:25.678109Z
Summary
linux-gcp, linux-gcp-6.8, linux-gke 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: - HSI subsystem; - I2C subsystem; - Bluetooth subsystem; - Timer subsystem; (CVE-2025-37838, CVE-2025-38118, CVE-2025-38352, CVE-2025-38425)

References

Affected packages

Ubuntu:22.04:LTS / linux-gcp-6.8

Package

Name
linux-gcp-6.8
Purl
pkg:deb/ubuntu/linux-gcp-6.8@6.8.0-1043.46~22.04.1?arch=source&distro=jammy

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
6.8.0-1043.46~22.04.1

Affected versions

6.*

6.8.0-1010.11~22.04.1
6.8.0-1011.12~22.04.1
6.8.0-1012.13~22.04.1
6.8.0-1013.14~22.04.1
6.8.0-1014.16~22.04.1
6.8.0-1015.17~22.04.1
6.8.0-1016.18~22.04.1
6.8.0-1017.19~22.04.1
6.8.0-1018.20~22.04.1
6.8.0-1019.21~22.04.1
6.8.0-1020.22~22.04.1
6.8.0-1021.23~22.04.1
6.8.0-1024.26~22.04.1
6.8.0-1025.27~22.04.1
6.8.0-1026.28~22.04.1
6.8.0-1027.29~22.04.1
6.8.0-1028.30~22.04.1
6.8.0-1029.31~22.04.1
6.8.0-1030.32~22.04.1
6.8.0-1031.33~22.04.1
6.8.0-1032.34~22.04.1
6.8.0-1033.35~22.04.1
6.8.0-1034.36~22.04.2
6.8.0-1036.38~22.04.1
6.8.0-1037.39~22.04.1
6.8.0-1040.42~22.04.1
6.8.0-1041.43~22.04.1
6.8.0-1042.45~22.04.1

Ecosystem specific 

{
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_version": "6.8.0-1043.46~22.04.1",
            "binary_name": "linux-buildinfo-6.8.0-1043-gcp"
        },
        {
            "binary_version": "6.8.0-1043.46~22.04.1",
            "binary_name": "linux-buildinfo-6.8.0-1043-gcp-64k"
        },
        {
            "binary_version": "6.8.0-1043.46~22.04.1",
            "binary_name": "linux-gcp-6.8-headers-6.8.0-1043"
        },
        {
            "binary_version": "6.8.0-1043.46~22.04.1",
            "binary_name": "linux-gcp-6.8-tools-6.8.0-1043"
        },
        {
            "binary_version": "6.8.0-1043.46~22.04.1",
            "binary_name": "linux-headers-6.8.0-1043-gcp"
        },
        {
            "binary_version": "6.8.0-1043.46~22.04.1",
            "binary_name": "linux-headers-6.8.0-1043-gcp-64k"
        },
        {
            "binary_version": "6.8.0-1043.46~22.04.1",
            "binary_name": "linux-image-unsigned-6.8.0-1043-gcp"
        },
        {
            "binary_version": "6.8.0-1043.46~22.04.1",
            "binary_name": "linux-image-unsigned-6.8.0-1043-gcp-64k"
        },
        {
            "binary_version": "6.8.0-1043.46~22.04.1",
            "binary_name": "linux-modules-6.8.0-1043-gcp"
        },
        {
            "binary_version": "6.8.0-1043.46~22.04.1",
            "binary_name": "linux-modules-6.8.0-1043-gcp-64k"
        },
        {
            "binary_version": "6.8.0-1043.46~22.04.1",
            "binary_name": "linux-modules-extra-6.8.0-1043-gcp"
        },
        {
            "binary_version": "6.8.0-1043.46~22.04.1",
            "binary_name": "linux-modules-extra-6.8.0-1043-gcp-64k"
        },
        {
            "binary_version": "6.8.0-1043.46~22.04.1",
            "binary_name": "linux-tools-6.8.0-1043-gcp"
        },
        {
            "binary_version": "6.8.0-1043.46~22.04.1",
            "binary_name": "linux-tools-6.8.0-1043-gcp-64k"
        }
    ]
}

Database specific

cves_map

{
    "cves": [
        {
            "severity": [
                {
                    "type": "CVSS_V3",
                    "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"
                },
                {
                    "type": "Ubuntu",
                    "score": "medium"
                }
            ],
            "id": "CVE-2025-37838"
        },
        {
            "severity": [
                {
                    "type": "Ubuntu",
                    "score": "high"
                }
            ],
            "id": "CVE-2025-38118"
        },
        {
            "severity": [
                {
                    "type": "CVSS_V3",
                    "score": "CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H"
                },
                {
                    "type": "Ubuntu",
                    "score": "high"
                }
            ],
            "id": "CVE-2025-38352"
        },
        {
            "severity": [
                {
                    "type": "Ubuntu",
                    "score": "medium"
                }
            ],
            "id": "CVE-2025-38425"
        },
        {
            "severity": [
                {
                    "type": "Ubuntu",
                    "score": "high"
                }
            ],
            "id": "CVE-2025-40300"
        }
    ],
    "ecosystem": "Ubuntu:22.04:LTS"
}

Ubuntu:24.04:LTS / linux-gcp

Package

Name
linux-gcp
Purl
pkg:deb/ubuntu/linux-gcp@6.8.0-1043.46?arch=source&distro=noble

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
6.8.0-1043.46

Affected versions

6.*

6.5.0-1007.7
6.6.0-1001.1
6.8.0-1002.2
6.8.0-1005.5
6.8.0-1006.6
6.8.0-1007.7
6.8.0-1008.9
6.8.0-1009.10
6.8.0-1010.11
6.8.0-1011.12
6.8.0-1012.13
6.8.0-1013.14
6.8.0-1014.16
6.8.0-1015.17
6.8.0-1016.18
6.8.0-1017.19
6.8.0-1018.20
6.8.0-1019.21
6.8.0-1020.22
6.8.0-1021.23
6.8.0-1024.26
6.8.0-1025.27
6.8.0-1026.28
6.8.0-1027.29
6.8.0-1028.30
6.8.0-1029.31
6.8.0-1030.32
6.8.0-1031.33
6.8.0-1032.34
6.8.0-1033.35
6.8.0-1034.36
6.8.0-1036.38
6.8.0-1037.39
6.8.0-1039.41
6.8.0-1040.42
6.8.0-1041.43
6.8.0-1042.45

Ecosystem specific 

{
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_version": "6.8.0-1043.46",
            "binary_name": "linux-buildinfo-6.8.0-1043-gcp"
        },
        {
            "binary_version": "6.8.0-1043.46",
            "binary_name": "linux-buildinfo-6.8.0-1043-gcp-64k"
        },
        {
            "binary_version": "6.8.0-1043.46",
            "binary_name": "linux-gcp-headers-6.8.0-1043"
        },
        {
            "binary_version": "6.8.0-1043.46",
            "binary_name": "linux-gcp-tools-6.8.0-1043"
        },
        {
            "binary_version": "6.8.0-1043.46",
            "binary_name": "linux-headers-6.8.0-1043-gcp"
        },
        {
            "binary_version": "6.8.0-1043.46",
            "binary_name": "linux-headers-6.8.0-1043-gcp-64k"
        },
        {
            "binary_version": "6.8.0-1043.46",
            "binary_name": "linux-image-unsigned-6.8.0-1043-gcp"
        },
        {
            "binary_version": "6.8.0-1043.46",
            "binary_name": "linux-image-unsigned-6.8.0-1043-gcp-64k"
        },
        {
            "binary_version": "6.8.0-1043.46",
            "binary_name": "linux-modules-6.8.0-1043-gcp"
        },
        {
            "binary_version": "6.8.0-1043.46",
            "binary_name": "linux-modules-6.8.0-1043-gcp-64k"
        },
        {
            "binary_version": "6.8.0-1043.46",
            "binary_name": "linux-modules-extra-6.8.0-1043-gcp"
        },
        {
            "binary_version": "6.8.0-1043.46",
            "binary_name": "linux-modules-extra-6.8.0-1043-gcp-64k"
        },
        {
            "binary_version": "6.8.0-1043.46",
            "binary_name": "linux-tools-6.8.0-1043-gcp"
        },
        {
            "binary_version": "6.8.0-1043.46",
            "binary_name": "linux-tools-6.8.0-1043-gcp-64k"
        }
    ]
}

Database specific

cves_map

{
    "cves": [
        {
            "severity": [
                {
                    "type": "CVSS_V3",
                    "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"
                },
                {
                    "type": "Ubuntu",
                    "score": "medium"
                }
            ],
            "id": "CVE-2025-37838"
        },
        {
            "severity": [
                {
                    "type": "Ubuntu",
                    "score": "high"
                }
            ],
            "id": "CVE-2025-38118"
        },
        {
            "severity": [
                {
                    "type": "CVSS_V3",
                    "score": "CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H"
                },
                {
                    "type": "Ubuntu",
                    "score": "high"
                }
            ],
            "id": "CVE-2025-38352"
        },
        {
            "severity": [
                {
                    "type": "Ubuntu",
                    "score": "medium"
                }
            ],
            "id": "CVE-2025-38425"
        },
        {
            "severity": [
                {
                    "type": "Ubuntu",
                    "score": "high"
                }
            ],
            "id": "CVE-2025-40300"
        }
    ],
    "ecosystem": "Ubuntu:24.04:LTS"
}

Ubuntu:24.04:LTS / linux-gke

Package

Name
linux-gke
Purl
pkg:deb/ubuntu/linux-gke@6.8.0-1039.44?arch=source&distro=noble

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
6.8.0-1039.44

Affected versions

6.*

6.8.0-1003.5
6.8.0-1004.7
6.8.0-1005.8
6.8.0-1006.9
6.8.0-1007.10
6.8.0-1008.11
6.8.0-1009.12
6.8.0-1010.13
6.8.0-1011.14
6.8.0-1012.15
6.8.0-1013.17
6.8.0-1014.18
6.8.0-1015.19
6.8.0-1016.20
6.8.0-1017.21
6.8.0-1019.23
6.8.0-1020.24
6.8.0-1021.25
6.8.0-1022.26
6.8.0-1023.27
6.8.0-1024.28
6.8.0-1025.29
6.8.0-1026.30
6.8.0-1027.31
6.8.0-1028.32
6.8.0-1029.33
6.8.0-1032.36
6.8.0-1033.37
6.8.0-1035.39
6.8.0-1036.40
6.8.0-1037.41
6.8.0-1038.43

Ecosystem specific 

{
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_version": "6.8.0-1039.44",
            "binary_name": "linux-buildinfo-6.8.0-1039-gke"
        },
        {
            "binary_version": "6.8.0-1039.44",
            "binary_name": "linux-buildinfo-6.8.0-1039-gke-64k"
        },
        {
            "binary_version": "6.8.0-1039.44",
            "binary_name": "linux-gke-headers-6.8.0-1039"
        },
        {
            "binary_version": "6.8.0-1039.44",
            "binary_name": "linux-gke-tools-6.8.0-1039"
        },
        {
            "binary_version": "6.8.0-1039.44",
            "binary_name": "linux-headers-6.8.0-1039-gke"
        },
        {
            "binary_version": "6.8.0-1039.44",
            "binary_name": "linux-headers-6.8.0-1039-gke-64k"
        },
        {
            "binary_version": "6.8.0-1039.44",
            "binary_name": "linux-image-unsigned-6.8.0-1039-gke"
        },
        {
            "binary_version": "6.8.0-1039.44",
            "binary_name": "linux-image-unsigned-6.8.0-1039-gke-64k"
        },
        {
            "binary_version": "6.8.0-1039.44",
            "binary_name": "linux-modules-6.8.0-1039-gke"
        },
        {
            "binary_version": "6.8.0-1039.44",
            "binary_name": "linux-modules-6.8.0-1039-gke-64k"
        },
        {
            "binary_version": "6.8.0-1039.44",
            "binary_name": "linux-modules-extra-6.8.0-1039-gke"
        },
        {
            "binary_version": "6.8.0-1039.44",
            "binary_name": "linux-modules-extra-6.8.0-1039-gke-64k"
        },
        {
            "binary_version": "6.8.0-1039.44",
            "binary_name": "linux-modules-iwlwifi-6.8.0-1039-gke"
        },
        {
            "binary_version": "6.8.0-1039.44",
            "binary_name": "linux-tools-6.8.0-1039-gke"
        },
        {
            "binary_version": "6.8.0-1039.44",
            "binary_name": "linux-tools-6.8.0-1039-gke-64k"
        }
    ]
}

Database specific

cves_map

{
    "cves": [
        {
            "severity": [
                {
                    "type": "CVSS_V3",
                    "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"
                },
                {
                    "type": "Ubuntu",
                    "score": "medium"
                }
            ],
            "id": "CVE-2025-37838"
        },
        {
            "severity": [
                {
                    "type": "Ubuntu",
                    "score": "high"
                }
            ],
            "id": "CVE-2025-38118"
        },
        {
            "severity": [
                {
                    "type": "CVSS_V3",
                    "score": "CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H"
                },
                {
                    "type": "Ubuntu",
                    "score": "high"
                }
            ],
            "id": "CVE-2025-38352"
        },
        {
            "severity": [
                {
                    "type": "Ubuntu",
                    "score": "medium"
                }
            ],
            "id": "CVE-2025-38425"
        },
        {
            "severity": [
                {
                    "type": "Ubuntu",
                    "score": "high"
                }
            ],
            "id": "CVE-2025-40300"
        }
    ],
    "ecosystem": "Ubuntu:24.04:LTS"
}