USN-3576-1

Vivian Zhang and Christoph Anton Mitterer discovered that libvirt incorrectly disabled password authentication when the VNC password was set to an empty string. A remote attacker could possibly use this issue to bypass authentication, contrary to expectations. This issue only affected Ubuntu 14.04 LTS and Ubuntu 16.04 LTS. (CVE-2016-5008)

Daniel P. Berrange discovered that libvirt incorrectly handled validating SSL/TLS certificates. A remote attacker could possibly use this issue to obtain sensitive information. This issue only affected Ubuntu 17.10. (CVE-2017-1000256)

Daniel P. Berrange and Peter Krempa discovered that libvirt incorrectly handled large QEMU replies. An attacker could possibly use this issue to cause libvirt to crash, resulting in a denial of service. (CVE-2018-5748)

Pedro Sampaio discovered that libvirt incorrectly handled the libnssdns.so module. An attacker in a libvirtlxc session could possibly use this issue to execute arbitrary code. This issue only affected Ubuntu 16.04 LTS and Ubuntu 17.10. (CVE-2018-6764)

References

Affected packages

Ubuntu:14.04:LTS / libvirt

Package

Name: libvirt
Purl: pkg:deb/ubuntu/libvirt@1.2.2-0ubuntu13.1.26?arch=source&distro=trusty

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Fixed

1.2.2-0ubuntu13.1.26

Affected versions

1.*

1.1.1-0ubuntu8

1.1.1-0ubuntu9

1.1.4-0ubuntu2

1.1.4-0ubuntu3

1.1.4-0ubuntu4

1.1.4-0ubuntu5

1.2.0-0ubuntu1

1.2.0-0ubuntu2

1.2.0-0ubuntu3

1.2.1-0ubuntu1

1.2.1-0ubuntu2

1.2.1-0ubuntu3

1.2.1-0ubuntu4

1.2.1-0ubuntu5

1.2.1-0ubuntu7

1.2.1-0ubuntu8

1.2.1-0ubuntu9

1.2.1-0ubuntu10

1.2.2-0ubuntu1

1.2.2-0ubuntu2

1.2.2-0ubuntu3

1.2.2-0ubuntu4

1.2.2-0ubuntu5

1.2.2-0ubuntu6

1.2.2-0ubuntu7

1.2.2-0ubuntu8

1.2.2-0ubuntu9

1.2.2-0ubuntu10

1.2.2-0ubuntu11

1.2.2-0ubuntu12

1.2.2-0ubuntu13

1.2.2-0ubuntu13.1

1.2.2-0ubuntu13.1.1

1.2.2-0ubuntu13.1.2

1.2.2-0ubuntu13.1.4

1.2.2-0ubuntu13.1.5

1.2.2-0ubuntu13.1.6

1.2.2-0ubuntu13.1.7

1.2.2-0ubuntu13.1.8

1.2.2-0ubuntu13.1.9

1.2.2-0ubuntu13.1.10

1.2.2-0ubuntu13.1.12

1.2.2-0ubuntu13.1.14

1.2.2-0ubuntu13.1.16

1.2.2-0ubuntu13.1.17

1.2.2-0ubuntu13.1.20

1.2.2-0ubuntu13.1.21

1.2.2-0ubuntu13.1.22

1.2.2-0ubuntu13.1.23

1.2.2-0ubuntu13.1.25

Ecosystem specific

{
    "binaries": [
        {
            "binary_version": "1.2.2-0ubuntu13.1.26",
            "binary_name": "libvirt-bin"
        },
        {
            "binary_version": "1.2.2-0ubuntu13.1.26",
            "binary_name": "libvirt-dev"
        },
        {
            "binary_version": "1.2.2-0ubuntu13.1.26",
            "binary_name": "libvirt0"
        }
    ],
    "availability": "No subscription required"
}

Database specific

cves_map

{
    "ecosystem": "Ubuntu:14.04:LTS",
    "cves": [
        {
            "id": "CVE-2016-5008",
            "severity": [
                {
                    "type": "CVSS_V3",
                    "score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"
                },
                {
                    "type": "Ubuntu",
                    "score": "low"
                }
            ]
        },
        {
            "id": "CVE-2018-5748",
            "severity": [
                {
                    "type": "CVSS_V3",
                    "score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"
                },
                {
                    "type": "Ubuntu",
                    "score": "low"
                }
            ]
        }
    ]
}

Ubuntu:16.04:LTS / libvirt

Package

Name: libvirt
Purl: pkg:deb/ubuntu/libvirt@1.3.1-1ubuntu10.19?arch=source&distro=xenial

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Fixed

1.3.1-1ubuntu10.19

Affected versions

1.*

1.2.16-2ubuntu11

1.2.16-2ubuntu12

1.2.16-2ubuntu13

1.2.16-2ubuntu14

1.2.21-2ubuntu1

1.2.21-2ubuntu3

1.2.21-2ubuntu4

1.2.21-2ubuntu5

1.2.21-2ubuntu7

1.2.21-2ubuntu8

1.2.21-2ubuntu9

1.2.21-2ubuntu10

1.3.1-1ubuntu1

1.3.1-1ubuntu2

1.3.1-1ubuntu3

1.3.1-1ubuntu4

1.3.1-1ubuntu6

1.3.1-1ubuntu9

1.3.1-1ubuntu10

1.3.1-1ubuntu10.1

1.3.1-1ubuntu10.2

1.3.1-1ubuntu10.3

1.3.1-1ubuntu10.5

1.3.1-1ubuntu10.6

1.3.1-1ubuntu10.7

1.3.1-1ubuntu10.8

1.3.1-1ubuntu10.10

1.3.1-1ubuntu10.11

1.3.1-1ubuntu10.12

1.3.1-1ubuntu10.13

1.3.1-1ubuntu10.14

1.3.1-1ubuntu10.15

1.3.1-1ubuntu10.17

1.3.1-1ubuntu10.18

Ecosystem specific

{
    "binaries": [
        {
            "binary_version": "1.3.1-1ubuntu10.19",
            "binary_name": "libvirt-bin"
        },
        {
            "binary_version": "1.3.1-1ubuntu10.19",
            "binary_name": "libvirt-dev"
        },
        {
            "binary_version": "1.3.1-1ubuntu10.19",
            "binary_name": "libvirt0"
        }
    ],
    "availability": "No subscription required"
}

Database specific

cves_map

{
    "ecosystem": "Ubuntu:16.04:LTS",
    "cves": [
        {
            "id": "CVE-2016-5008",
            "severity": [
                {
                    "type": "CVSS_V3",
                    "score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"
                },
                {
                    "type": "Ubuntu",
                    "score": "low"
                }
            ]
        },
        {
            "id": "CVE-2018-5748",
            "severity": [
                {
                    "type": "CVSS_V3",
                    "score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"
                },
                {
                    "type": "Ubuntu",
                    "score": "low"
                }
            ]
        },
        {
            "id": "CVE-2018-6764",
            "severity": [
                {
                    "type": "CVSS_V3",
                    "score": "CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"
                },
                {
                    "type": "Ubuntu",
                    "score": "low"
                }
            ]
        }
    ]
}