USN-3488-1

It was discovered that the KVM subsystem in the Linux kernel did not properly keep track of nested levels in guest page tables. A local attacker in a guest VM could use this to cause a denial of service (host OS crash) or possibly execute arbitrary code in the host OS.

References

Affected packages

Ubuntu:16.04:LTS / linux-azure

Package

Name: linux-azure
Purl: pkg:deb/ubuntu/linux-azure@4.11.0-1015.15?arch=source&distro=xenial

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Fixed

4.11.0-1015.15

Affected versions

4.*

4.11.0-1009.9

4.11.0-1011.11

4.11.0-1013.13

4.11.0-1014.14

Ecosystem specific

{
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_version": "4.11.0-1015.15",
            "binary_name": "linux-azure-cloud-tools-4.11.0-1015"
        },
        {
            "binary_version": "4.11.0-1015.15",
            "binary_name": "linux-azure-headers-4.11.0-1015"
        },
        {
            "binary_version": "4.11.0-1015.15",
            "binary_name": "linux-azure-tools-4.11.0-1015"
        },
        {
            "binary_version": "4.11.0-1015.15",
            "binary_name": "linux-cloud-tools-4.11.0-1015-azure"
        },
        {
            "binary_version": "4.11.0-1015.15",
            "binary_name": "linux-headers-4.11.0-1015-azure"
        },
        {
            "binary_version": "4.11.0-1015.15",
            "binary_name": "linux-image-4.11.0-1015-azure"
        },
        {
            "binary_version": "4.11.0-1015.15",
            "binary_name": "linux-image-extra-4.11.0-1015-azure"
        },
        {
            "binary_version": "4.11.0-1015.15",
            "binary_name": "linux-tools-4.11.0-1015-azure"
        }
    ]
}

Database specific

{
    "cves_map": {
        "ecosystem": "Ubuntu:16.04:LTS",
        "cves": [
            {
                "severity": [
                    {
                        "type": "CVSS_V3",
                        "score": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H"
                    },
                    {
                        "type": "CVSS_V3",
                        "score": "CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H"
                    },
                    {
                        "type": "Ubuntu",
                        "score": "high"
                    }
                ],
                "id": "CVE-2017-12188"
            }
        ]
    }
}