USN-7931-3

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Source
https://ubuntu.com/security/notices/USN-7931-3
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-7931-3.json
JSON Data
https://api.test.osv.dev/v1/vulns/USN-7931-3
Upstream
Related
Published
2025-12-15T16:15:07.269099Z
Modified
2026-01-14T08:29:16.648222Z
Summary
linux-realtime, linux-realtime-6.8 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: - Cryptographic API; - Media drivers; - Memory management; - Appletalk network protocol; - Netfilter; (CVE-2025-37958, CVE-2025-38666, CVE-2025-39964, CVE-2025-39993, CVE-2025-40018)

References

Affected packages

Ubuntu:Pro:22.04:LTS:Realtime:Kernel / linux-realtime-6.8

Package

Name
linux-realtime-6.8
Purl
pkg:deb/ubuntu/linux-realtime-6.8@6.8.1-1039.40~22.04.1?arch=source&distro=realtime/jammy

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
6.8.1-1039.40~22.04.1

Affected versions

6.*

6.8.1-1004.4~22.04.1
6.8.1-1005.5~22.04.2
6.8.1-1006.6~22.04.1
6.8.1-1007.7~22.04.1
6.8.1-1008.8~22.04.1
6.8.1-1009.9~22.04.1
6.8.1-1010.10~22.04.1
6.8.1-1011.11~22.04.1
6.8.1-1012.12~22.04.1
6.8.1-1013.14~22.04.1
6.8.1-1014.15~22.04.1
6.8.1-1015.16~22.04.1
6.8.1-1016.17~22.04.1
6.8.1-1017.18~22.04.1
6.8.1-1018.19~22.04.1
6.8.1-1019.20~22.04.1
6.8.1-1020.21~22.04.1
6.8.1-1021.22~22.04.1
6.8.1-1022.23~22.04.1
6.8.1-1023.24~22.04.1
6.8.1-1024.25~22.04.1
6.8.1-1025.26~22.04.1
6.8.1-1026.27~22.04.1
6.8.1-1030.31~22.04.1
6.8.1-1031.32~22.04.1
6.8.1-1034.35~22.04.1
6.8.1-1035.36~22.04.1
6.8.1-1036.37~22.04.1
6.8.1-1037.38~22.04.1
6.8.1-1038.39~22.04.1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "6.8.1-1039.40~22.04.1",
            "binary_name": "linux-buildinfo-6.8.1-1039-realtime"
        },
        {
            "binary_version": "6.8.1-1039.40~22.04.1",
            "binary_name": "linux-cloud-tools-6.8.1-1039-realtime"
        },
        {
            "binary_version": "6.8.1-1039.40~22.04.1",
            "binary_name": "linux-headers-6.8.1-1039-realtime"
        },
        {
            "binary_version": "6.8.1-1039.40~22.04.1",
            "binary_name": "linux-image-unsigned-6.8.1-1039-realtime"
        },
        {
            "binary_version": "6.8.1-1039.40~22.04.1",
            "binary_name": "linux-modules-6.8.1-1039-realtime"
        },
        {
            "binary_version": "6.8.1-1039.40~22.04.1",
            "binary_name": "linux-modules-extra-6.8.1-1039-realtime"
        },
        {
            "binary_version": "6.8.1-1039.40~22.04.1",
            "binary_name": "linux-modules-iwlwifi-6.8.1-1039-realtime"
        },
        {
            "binary_version": "6.8.1-1039.40~22.04.1",
            "binary_name": "linux-realtime-6.8-cloud-tools-6.8.1-1039"
        },
        {
            "binary_version": "6.8.1-1039.40~22.04.1",
            "binary_name": "linux-realtime-6.8-headers-6.8.1-1039"
        },
        {
            "binary_version": "6.8.1-1039.40~22.04.1",
            "binary_name": "linux-realtime-6.8-tools-6.8.1-1039"
        },
        {
            "binary_version": "6.8.1-1039.40~22.04.1",
            "binary_name": "linux-tools-6.8.1-1039-realtime"
        }
    ],
    "availability": "Available with Ubuntu Pro: https://ubuntu.com/pro"
}

Database specific

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-7931-3.json"

cves_map

{
    "cves": [
        {
            "severity": [
                {
                    "type": "CVSS_V3",
                    "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"
                },
                {
                    "type": "Ubuntu",
                    "score": "medium"
                }
            ],
            "id": "CVE-2025-37958"
        },
        {
            "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": "high"
                }
            ],
            "id": "CVE-2025-38666"
        },
        {
            "severity": [
                {
                    "type": "Ubuntu",
                    "score": "medium"
                }
            ],
            "id": "CVE-2025-39964"
        },
        {
            "severity": [
                {
                    "type": "Ubuntu",
                    "score": "medium"
                }
            ],
            "id": "CVE-2025-39993"
        },
        {
            "severity": [
                {
                    "type": "Ubuntu",
                    "score": "medium"
                }
            ],
            "id": "CVE-2025-40018"
        }
    ],
    "ecosystem": "Ubuntu:Pro:22.04:LTS:Realtime:Kernel"
}

Ubuntu:Pro:24.04:LTS:Realtime:Kernel / linux-realtime

Package

Name
linux-realtime
Purl
pkg:deb/ubuntu/linux-realtime@6.8.1-1039.40?arch=source&distro=realtime/noble

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
6.8.1-1039.40

Affected versions

6.*

6.8.0-1008.19
6.8.1-1001.1
6.8.1-1002.2
6.8.1-1003.3
6.8.1-1004.4
6.8.1-1005.5
6.8.1-1006.6
6.8.1-1007.7
6.8.1-1008.8
6.8.1-1009.9
6.8.1-1010.10
6.8.1-1011.11
6.8.1-1012.12
6.8.1-1013.14
6.8.1-1014.15
6.8.1-1015.16
6.8.1-1016.17
6.8.1-1017.18
6.8.1-1018.19
6.8.1-1019.20
6.8.1-1020.21
6.8.1-1021.22
6.8.1-1022.23
6.8.1-1023.24
6.8.1-1024.25
6.8.1-1025.26
6.8.1-1026.27
6.8.1-1030.31
6.8.1-1031.32
6.8.1-1033.34
6.8.1-1034.35
6.8.1-1035.36
6.8.1-1036.37
6.8.1-1037.38
6.8.1-1038.39

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "6.8.1-1039.40",
            "binary_name": "linux-buildinfo-6.8.1-1039-realtime"
        },
        {
            "binary_version": "6.8.1-1039.40",
            "binary_name": "linux-cloud-tools-6.8.1-1039-realtime"
        },
        {
            "binary_version": "6.8.1-1039.40",
            "binary_name": "linux-headers-6.8.1-1039-realtime"
        },
        {
            "binary_version": "6.8.1-1039.40",
            "binary_name": "linux-image-unsigned-6.8.1-1039-realtime"
        },
        {
            "binary_version": "6.8.1-1039.40",
            "binary_name": "linux-modules-6.8.1-1039-realtime"
        },
        {
            "binary_version": "6.8.1-1039.40",
            "binary_name": "linux-modules-extra-6.8.1-1039-realtime"
        },
        {
            "binary_version": "6.8.1-1039.40",
            "binary_name": "linux-modules-iwlwifi-6.8.1-1039-realtime"
        },
        {
            "binary_version": "6.8.1-1039.40",
            "binary_name": "linux-realtime-cloud-tools-6.8.1-1039"
        },
        {
            "binary_version": "6.8.1-1039.40",
            "binary_name": "linux-realtime-headers-6.8.1-1039"
        },
        {
            "binary_version": "6.8.1-1039.40",
            "binary_name": "linux-realtime-tools-6.8.1-1039"
        },
        {
            "binary_version": "6.8.1-1039.40",
            "binary_name": "linux-tools-6.8.1-1039-realtime"
        }
    ],
    "availability": "Available with Ubuntu Pro: https://ubuntu.com/pro"
}

Database specific

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-7931-3.json"

cves_map

{
    "cves": [
        {
            "severity": [
                {
                    "type": "CVSS_V3",
                    "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"
                },
                {
                    "type": "Ubuntu",
                    "score": "medium"
                }
            ],
            "id": "CVE-2025-37958"
        },
        {
            "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": "high"
                }
            ],
            "id": "CVE-2025-38666"
        },
        {
            "severity": [
                {
                    "type": "Ubuntu",
                    "score": "medium"
                }
            ],
            "id": "CVE-2025-39964"
        },
        {
            "severity": [
                {
                    "type": "Ubuntu",
                    "score": "medium"
                }
            ],
            "id": "CVE-2025-39993"
        },
        {
            "severity": [
                {
                    "type": "Ubuntu",
                    "score": "medium"
                }
            ],
            "id": "CVE-2025-40018"
        }
    ],
    "ecosystem": "Ubuntu:Pro:24.04:LTS:Realtime:Kernel"
}