UBUNTU-CVE-2021-22895

See a problem?
Please try reporting it to the source first.
Source
https://ubuntu.com/security/CVE-2021-22895
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-22895.json
JSON Data
https://api.test.osv.dev/v1/vulns/UBUNTU-CVE-2021-22895
Upstream
Published
2021-06-11T16:15:00Z
Modified
2026-05-20T16:06:26Z
Severity
  • 5.9 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

Nextcloud Desktop Client before 3.3.1 is vulnerable to improper certificate validation due to lack of SSL certificate verification when using the "Register with a Provider" flow.

References

Affected packages

Ubuntu:20.04:LTS / nextcloud-desktop

Package

Name
nextcloud-desktop
Purl
pkg:deb/ubuntu/nextcloud-desktop?arch=source&distro=focal

Affected ranges

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

Affected versions

2.*
2.5.3-1
2.6.0-1
2.6.1-1
2.6.1-2
2.6.2-1
2.6.2-1build1

Ecosystem specific 

{
    "binaries":  [
        {
            "binary_name":  "caja-nextcloud",
            "binary_version":  "2.6.2-1build1"
        },
        {
            "binary_name":  "dolphin-nextcloud",
            "binary_version":  "2.6.2-1build1"
        },
        {
            "binary_name":  "libnextcloudsync0",
            "binary_version":  "2.6.2-1build1"
        },
        {
            "binary_name":  "nautilus-nextcloud",
            "binary_version":  "2.6.2-1build1"
        },
        {
            "binary_name":  "nemo-nextcloud",
            "binary_version":  "2.6.2-1build1"
        },
        {
            "binary_name":  "nextcloud-desktop",
            "binary_version":  "2.6.2-1build1"
        },
        {
            "binary_name":  "nextcloud-desktop-cmd",
            "binary_version":  "2.6.2-1build1"
        },
        {
            "binary_name":  "nextcloud-desktop-common",
            "binary_version":  "2.6.2-1build1"
        },
        {
            "binary_name":  "nextcloud-desktop-l10n",
            "binary_version":  "2.6.2-1build1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-22895.json"

Ubuntu:22.04:LTS / nextcloud-desktop

Package

Name
nextcloud-desktop
Purl
pkg:deb/ubuntu/nextcloud-desktop?arch=source&distro=jammy

Affected ranges

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

Affected versions

3.*
3.2.3-0ubuntu1
3.3.5-1
3.3.5-1ubuntu1
3.4.2-1
3.4.2-1ubuntu1

Ecosystem specific 

{
    "binaries":  [
        {
            "binary_name":  "caja-nextcloud",
            "binary_version":  "3.4.2-1ubuntu1"
        },
        {
            "binary_name":  "dolphin-nextcloud",
            "binary_version":  "3.4.2-1ubuntu1"
        },
        {
            "binary_name":  "libnextcloudsync0",
            "binary_version":  "3.4.2-1ubuntu1"
        },
        {
            "binary_name":  "nautilus-nextcloud",
            "binary_version":  "3.4.2-1ubuntu1"
        },
        {
            "binary_name":  "nemo-nextcloud",
            "binary_version":  "3.4.2-1ubuntu1"
        },
        {
            "binary_name":  "nextcloud-desktop",
            "binary_version":  "3.4.2-1ubuntu1"
        },
        {
            "binary_name":  "nextcloud-desktop-cmd",
            "binary_version":  "3.4.2-1ubuntu1"
        },
        {
            "binary_name":  "nextcloud-desktop-common",
            "binary_version":  "3.4.2-1ubuntu1"
        },
        {
            "binary_name":  "nextcloud-desktop-l10n",
            "binary_version":  "3.4.2-1ubuntu1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-22895.json"

Ubuntu:24.04:LTS / nextcloud-desktop

Package

Name
nextcloud-desktop
Purl
pkg:deb/ubuntu/nextcloud-desktop?arch=source&distro=noble

Affected ranges

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

Affected versions

3.*
3.9.0-1
3.10.0-1
3.11.0-1
3.11.0-1.1build3
3.11.0-1.1build4

Ecosystem specific 

{
    "binaries":  [
        {
            "binary_name":  "caja-nextcloud",
            "binary_version":  "3.11.0-1.1build4"
        },
        {
            "binary_name":  "dolphin-nextcloud",
            "binary_version":  "3.11.0-1.1build4"
        },
        {
            "binary_name":  "libnextcloudsync0t64",
            "binary_version":  "3.11.0-1.1build4"
        },
        {
            "binary_name":  "nautilus-nextcloud",
            "binary_version":  "3.11.0-1.1build4"
        },
        {
            "binary_name":  "nemo-nextcloud",
            "binary_version":  "3.11.0-1.1build4"
        },
        {
            "binary_name":  "nextcloud-desktop",
            "binary_version":  "3.11.0-1.1build4"
        },
        {
            "binary_name":  "nextcloud-desktop-cmd",
            "binary_version":  "3.11.0-1.1build4"
        },
        {
            "binary_name":  "nextcloud-desktop-common",
            "binary_version":  "3.11.0-1.1build4"
        },
        {
            "binary_name":  "nextcloud-desktop-l10n",
            "binary_version":  "3.11.0-1.1build4"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-22895.json"

Ubuntu:25.10 / nextcloud-desktop

Package

Name
nextcloud-desktop
Purl
pkg:deb/ubuntu/nextcloud-desktop?arch=source&distro=questing

Affected ranges

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

Affected versions

3.*
3.16.0-1
3.16.2-1
3.16.4-1
3.16.6-1
3.16.6-3

Ecosystem specific 

{
    "binaries":  [
        {
            "binary_name":  "caja-nextcloud",
            "binary_version":  "3.16.6-3"
        },
        {
            "binary_name":  "dolphin-nextcloud",
            "binary_version":  "3.16.6-3"
        },
        {
            "binary_name":  "libnextcloudsync0t64",
            "binary_version":  "3.16.6-3"
        },
        {
            "binary_name":  "nautilus-nextcloud",
            "binary_version":  "3.16.6-3"
        },
        {
            "binary_name":  "nemo-nextcloud",
            "binary_version":  "3.16.6-3"
        },
        {
            "binary_name":  "nextcloud-desktop",
            "binary_version":  "3.16.6-3"
        },
        {
            "binary_name":  "nextcloud-desktop-cmd",
            "binary_version":  "3.16.6-3"
        },
        {
            "binary_name":  "nextcloud-desktop-common",
            "binary_version":  "3.16.6-3"
        },
        {
            "binary_name":  "nextcloud-desktop-l10n",
            "binary_version":  "3.16.6-3"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-22895.json"

Ubuntu:26.04:LTS / nextcloud-desktop

Package

Name
nextcloud-desktop
Purl
pkg:deb/ubuntu/nextcloud-desktop?arch=source&distro=resolute

Affected ranges

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

Affected versions

3.*
3.16.6-3
3.16.7-1
4.*
4.0.1-2
4.0.1-2build1
4.0.6-1

Ecosystem specific 

{
    "binaries":  [
        {
            "binary_name":  "caja-nextcloud",
            "binary_version":  "4.0.6-1"
        },
        {
            "binary_name":  "dolphin-nextcloud",
            "binary_version":  "4.0.6-1"
        },
        {
            "binary_name":  "libnextcloudsync0t64",
            "binary_version":  "4.0.6-1"
        },
        {
            "binary_name":  "nautilus-nextcloud",
            "binary_version":  "4.0.6-1"
        },
        {
            "binary_name":  "nemo-nextcloud",
            "binary_version":  "4.0.6-1"
        },
        {
            "binary_name":  "nextcloud-desktop",
            "binary_version":  "4.0.6-1"
        },
        {
            "binary_name":  "nextcloud-desktop-cmd",
            "binary_version":  "4.0.6-1"
        },
        {
            "binary_name":  "nextcloud-desktop-common",
            "binary_version":  "4.0.6-1"
        },
        {
            "binary_name":  "nextcloud-desktop-l10n",
            "binary_version":  "4.0.6-1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-22895.json"