UBUNTU-CVE-2020-25637

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Source
https://ubuntu.com/security/CVE-2020-25637
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2020/UBUNTU-CVE-2020-25637.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2020-25637
Upstream
Downstream
Related
Published
2020-10-06T14:15:00Z
Modified
2025-10-24T04:48:43Z
Severity
  • 6.7 (Medium) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
  • Ubuntu - negligible
Summary
[none]
Details

A double free memory issue was found to occur in the libvirt API, in versions before 6.8.0, responsible for requesting information about network interfaces of a running QEMU domain. This flaw affects the polkit access control driver. Specifically, clients connecting to the read-write socket with limited ACL permissions could use this flaw to crash the libvirt daemon, resulting in a denial of service, or potentially escalate their privileges on the system. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.

References

Affected packages

Ubuntu:Pro:14.04:LTS / libvirt

Package

Name
libvirt
Purl
pkg:deb/ubuntu/libvirt@1.2.2-0ubuntu13.1.28+esm1?arch=source&distro=esm-infra-legacy/trusty

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

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
1.2.2-0ubuntu13.1.26
1.2.2-0ubuntu13.1.27
1.2.2-0ubuntu13.1.28
1.2.2-0ubuntu13.1.28+esm1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libvirt-bin",
            "binary_version": "1.2.2-0ubuntu13.1.28+esm1"
        },
        {
            "binary_name": "libvirt-dev",
            "binary_version": "1.2.2-0ubuntu13.1.28+esm1"
        },
        {
            "binary_name": "libvirt0",
            "binary_version": "1.2.2-0ubuntu13.1.28+esm1"
        }
    ]
}

Ubuntu:16.04:LTS / libvirt

Package

Name
libvirt
Purl
pkg:deb/ubuntu/libvirt@1.3.1-1ubuntu10.31?arch=source&distro=xenial

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

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
1.3.1-1ubuntu10.19
1.3.1-1ubuntu10.21
1.3.1-1ubuntu10.22
1.3.1-1ubuntu10.23
1.3.1-1ubuntu10.24
1.3.1-1ubuntu10.25
1.3.1-1ubuntu10.26
1.3.1-1ubuntu10.27
1.3.1-1ubuntu10.29
1.3.1-1ubuntu10.30
1.3.1-1ubuntu10.31

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libvirt-bin",
            "binary_version": "1.3.1-1ubuntu10.31"
        },
        {
            "binary_name": "libvirt-dev",
            "binary_version": "1.3.1-1ubuntu10.31"
        },
        {
            "binary_name": "libvirt0",
            "binary_version": "1.3.1-1ubuntu10.31"
        }
    ]
}

Ubuntu:18.04:LTS / libvirt

Package

Name
libvirt
Purl
pkg:deb/ubuntu/libvirt@4.0.0-1ubuntu8.21?arch=source&distro=bionic

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
4.0.0-1ubuntu8.21

Affected versions

3.*

3.6.0-1ubuntu5
3.6.0-1ubuntu6

4.*

4.0.0-1ubuntu1
4.0.0-1ubuntu2
4.0.0-1ubuntu3
4.0.0-1ubuntu4
4.0.0-1ubuntu5
4.0.0-1ubuntu6
4.0.0-1ubuntu7
4.0.0-1ubuntu8
4.0.0-1ubuntu8.1
4.0.0-1ubuntu8.2
4.0.0-1ubuntu8.3
4.0.0-1ubuntu8.4
4.0.0-1ubuntu8.5
4.0.0-1ubuntu8.6
4.0.0-1ubuntu8.7
4.0.0-1ubuntu8.8
4.0.0-1ubuntu8.9
4.0.0-1ubuntu8.10
4.0.0-1ubuntu8.11
4.0.0-1ubuntu8.12
4.0.0-1ubuntu8.13
4.0.0-1ubuntu8.14
4.0.0-1ubuntu8.15
4.0.0-1ubuntu8.16
4.0.0-1ubuntu8.17
4.0.0-1ubuntu8.19
4.0.0-1ubuntu8.20

Ecosystem specific 

{
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_name": "libnss-libvirt",
            "binary_version": "4.0.0-1ubuntu8.21"
        },
        {
            "binary_name": "libvirt-bin",
            "binary_version": "4.0.0-1ubuntu8.21"
        },
        {
            "binary_name": "libvirt-clients",
            "binary_version": "4.0.0-1ubuntu8.21"
        },
        {
            "binary_name": "libvirt-daemon",
            "binary_version": "4.0.0-1ubuntu8.21"
        },
        {
            "binary_name": "libvirt-daemon-driver-storage-gluster",
            "binary_version": "4.0.0-1ubuntu8.21"
        },
        {
            "binary_name": "libvirt-daemon-driver-storage-rbd",
            "binary_version": "4.0.0-1ubuntu8.21"
        },
        {
            "binary_name": "libvirt-daemon-driver-storage-sheepdog",
            "binary_version": "4.0.0-1ubuntu8.21"
        },
        {
            "binary_name": "libvirt-daemon-driver-storage-zfs",
            "binary_version": "4.0.0-1ubuntu8.21"
        },
        {
            "binary_name": "libvirt-daemon-system",
            "binary_version": "4.0.0-1ubuntu8.21"
        },
        {
            "binary_name": "libvirt-dev",
            "binary_version": "4.0.0-1ubuntu8.21"
        },
        {
            "binary_name": "libvirt-sanlock",
            "binary_version": "4.0.0-1ubuntu8.21"
        },
        {
            "binary_name": "libvirt-wireshark",
            "binary_version": "4.0.0-1ubuntu8.21"
        },
        {
            "binary_name": "libvirt0",
            "binary_version": "4.0.0-1ubuntu8.21"
        }
    ]
}

Ubuntu:20.04:LTS / libvirt

Package

Name
libvirt
Purl
pkg:deb/ubuntu/libvirt@6.0.0-0ubuntu8.16?arch=source&distro=focal

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
6.0.0-0ubuntu8.16

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
6.0.0-0ubuntu8.3
6.0.0-0ubuntu8.4
6.0.0-0ubuntu8.5
6.0.0-0ubuntu8.7
6.0.0-0ubuntu8.8
6.0.0-0ubuntu8.9
6.0.0-0ubuntu8.10
6.0.0-0ubuntu8.11
6.0.0-0ubuntu8.12
6.0.0-0ubuntu8.13
6.0.0-0ubuntu8.14
6.0.0-0ubuntu8.15

Ecosystem specific 

{
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_name": "libnss-libvirt",
            "binary_version": "6.0.0-0ubuntu8.16"
        },
        {
            "binary_name": "libvirt-clients",
            "binary_version": "6.0.0-0ubuntu8.16"
        },
        {
            "binary_name": "libvirt-daemon",
            "binary_version": "6.0.0-0ubuntu8.16"
        },
        {
            "binary_name": "libvirt-daemon-driver-lxc",
            "binary_version": "6.0.0-0ubuntu8.16"
        },
        {
            "binary_name": "libvirt-daemon-driver-qemu",
            "binary_version": "6.0.0-0ubuntu8.16"
        },
        {
            "binary_name": "libvirt-daemon-driver-storage-gluster",
            "binary_version": "6.0.0-0ubuntu8.16"
        },
        {
            "binary_name": "libvirt-daemon-driver-storage-rbd",
            "binary_version": "6.0.0-0ubuntu8.16"
        },
        {
            "binary_name": "libvirt-daemon-driver-storage-zfs",
            "binary_version": "6.0.0-0ubuntu8.16"
        },
        {
            "binary_name": "libvirt-daemon-driver-vbox",
            "binary_version": "6.0.0-0ubuntu8.16"
        },
        {
            "binary_name": "libvirt-daemon-driver-xen",
            "binary_version": "6.0.0-0ubuntu8.16"
        },
        {
            "binary_name": "libvirt-daemon-system",
            "binary_version": "6.0.0-0ubuntu8.16"
        },
        {
            "binary_name": "libvirt-daemon-system-systemd",
            "binary_version": "6.0.0-0ubuntu8.16"
        },
        {
            "binary_name": "libvirt-daemon-system-sysv",
            "binary_version": "6.0.0-0ubuntu8.16"
        },
        {
            "binary_name": "libvirt-dev",
            "binary_version": "6.0.0-0ubuntu8.16"
        },
        {
            "binary_name": "libvirt-sanlock",
            "binary_version": "6.0.0-0ubuntu8.16"
        },
        {
            "binary_name": "libvirt-wireshark",
            "binary_version": "6.0.0-0ubuntu8.16"
        },
        {
            "binary_name": "libvirt0",
            "binary_version": "6.0.0-0ubuntu8.16"
        }
    ]
}