USN-4452-1

Trent Shea working with Trend Micro´s Zero Day Initiative, discovered that the libvirt package set incorrect permissions on the UNIX domain socket. A local attacker could use this issue to access libvirt and escalate privileges.

References

Affected packages

Ubuntu:20.04:LTS / libvirt

Package

Name: libvirt
Purl: pkg:deb/ubuntu/libvirt@6.0.0-0ubuntu8.3?arch=source&distro=focal

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0 Unknown introduced version / All previous versions are affected

Fixed

6.0.0-0ubuntu8.3

Affected versions

5.*

5.4.0-0ubuntu5

6.*

6.0.0-0ubuntu1

6.0.0-0ubuntu2

6.0.0-0ubuntu3

6.0.0-0ubuntu4

6.0.0-0ubuntu5

6.0.0-0ubuntu6

6.0.0-0ubuntu7

6.0.0-0ubuntu8

6.0.0-0ubuntu8.1

6.0.0-0ubuntu8.2

Ecosystem specific

{
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_name": "libnss-libvirt",
            "binary_version": "6.0.0-0ubuntu8.3"
        },
        {
            "binary_name": "libvirt-clients",
            "binary_version": "6.0.0-0ubuntu8.3"
        },
        {
            "binary_name": "libvirt-daemon",
            "binary_version": "6.0.0-0ubuntu8.3"
        },
        {
            "binary_name": "libvirt-daemon-driver-lxc",
            "binary_version": "6.0.0-0ubuntu8.3"
        },
        {
            "binary_name": "libvirt-daemon-driver-qemu",
            "binary_version": "6.0.0-0ubuntu8.3"
        },
        {
            "binary_name": "libvirt-daemon-driver-storage-gluster",
            "binary_version": "6.0.0-0ubuntu8.3"
        },
        {
            "binary_name": "libvirt-daemon-driver-storage-rbd",
            "binary_version": "6.0.0-0ubuntu8.3"
        },
        {
            "binary_name": "libvirt-daemon-driver-storage-zfs",
            "binary_version": "6.0.0-0ubuntu8.3"
        },
        {
            "binary_name": "libvirt-daemon-driver-vbox",
            "binary_version": "6.0.0-0ubuntu8.3"
        },
        {
            "binary_name": "libvirt-daemon-driver-xen",
            "binary_version": "6.0.0-0ubuntu8.3"
        },
        {
            "binary_name": "libvirt-daemon-system",
            "binary_version": "6.0.0-0ubuntu8.3"
        },
        {
            "binary_name": "libvirt-daemon-system-systemd",
            "binary_version": "6.0.0-0ubuntu8.3"
        },
        {
            "binary_name": "libvirt-daemon-system-sysv",
            "binary_version": "6.0.0-0ubuntu8.3"
        },
        {
            "binary_name": "libvirt-sanlock",
            "binary_version": "6.0.0-0ubuntu8.3"
        },
        {
            "binary_name": "libvirt-wireshark",
            "binary_version": "6.0.0-0ubuntu8.3"
        },
        {
            "binary_name": "libvirt0",
            "binary_version": "6.0.0-0ubuntu8.3"
        }
    ]
}

Database specific

cves_map

{
    "cves": [
        {
            "id": "CVE-2020-15708",
            "severity": [
                {
                    "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
                    "type": "CVSS_V3"
                },
                {
                    "score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H",
                    "type": "CVSS_V3"
                },
                {
                    "score": "medium",
                    "type": "Ubuntu"
                }
            ]
        }
    ],
    "ecosystem": "Ubuntu:20.04:LTS"
}

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-4452-1.json"