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

{
    "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"
        }
    ],
    "availability": "No subscription required"
}

Database specific

cves_map

{
    "ecosystem": "Ubuntu:16.04:LTS",
    "cves": [
        {
            "id": "CVE-2017-12188",
            "severity": [
                {
                    "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": "CVSS_V3"
                },
                {
                    "score": "high",
                    "type": "Ubuntu"
                }
            ]
        }
    ]
}