USN-3484-3

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-gcp

Package

Name: linux-gcp
Purl: pkg:deb/ubuntu/linux-gcp@4.10.0-1009.9?arch=source&distro=xenial

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Fixed

4.10.0-1009.9

Affected versions

4.*

4.10.0-1004.4

4.10.0-1006.6

4.10.0-1007.7

4.10.0-1008.8

Ecosystem specific

{
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_version": "4.10.0-1009.9",
            "binary_name": "linux-cloud-tools-4.10.0-1009-gcp"
        },
        {
            "binary_version": "4.10.0-1009.9",
            "binary_name": "linux-gcp-cloud-tools-4.10.0-1009"
        },
        {
            "binary_version": "4.10.0-1009.9",
            "binary_name": "linux-gcp-headers-4.10.0-1009"
        },
        {
            "binary_version": "4.10.0-1009.9",
            "binary_name": "linux-gcp-tools-4.10.0-1009"
        },
        {
            "binary_version": "4.10.0-1009.9",
            "binary_name": "linux-headers-4.10.0-1009-gcp"
        },
        {
            "binary_version": "4.10.0-1009.9",
            "binary_name": "linux-image-4.10.0-1009-gcp"
        },
        {
            "binary_version": "4.10.0-1009.9",
            "binary_name": "linux-image-extra-4.10.0-1009-gcp"
        },
        {
            "binary_version": "4.10.0-1009.9",
            "binary_name": "linux-tools-4.10.0-1009-gcp"
        }
    ]
}

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"
            }
        ]
    }
}