UBUNTU-CVE-2020-20813

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Source
https://ubuntu.com/security/CVE-2020-20813
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2020/UBUNTU-CVE-2020-20813.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2020-20813
Upstream
Published
2023-08-22T19:16:00Z
Modified
2025-07-16T16:52:19Z
Severity
  • 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

Control Channel in OpenVPN 2.4.7 and earlier allows remote attackers to cause a denial of service via crafted reset packet.

References

Affected packages

Ubuntu:Pro:14.04:LTS / openvpn

Package

Name
openvpn
Purl
pkg:deb/ubuntu/openvpn@2.3.2-7ubuntu3.2+esm2?arch=source&distro=esm-infra-legacy/trusty

Affected ranges

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

Affected versions

2.*

2.3.2-4ubuntu1
2.3.2-5ubuntu1
2.3.2-7ubuntu1
2.3.2-7ubuntu2
2.3.2-7ubuntu3
2.3.2-7ubuntu3.1
2.3.2-7ubuntu3.2
2.3.2-7ubuntu3.2+esm1
2.3.2-7ubuntu3.2+esm2

Ubuntu:Pro:16.04:LTS / openvpn

Package

Name
openvpn
Purl
pkg:deb/ubuntu/openvpn@2.3.10-1ubuntu2.2+esm2?arch=source&distro=esm-infra/xenial

Affected ranges

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

Affected versions

2.*

2.3.7-1ubuntu1
2.3.7-2ubuntu1
2.3.8-1ubuntu1
2.3.10-1ubuntu1
2.3.10-1ubuntu2
2.3.10-1ubuntu2.1
2.3.10-1ubuntu2.2
2.3.10-1ubuntu2.2+esm1
2.3.10-1ubuntu2.2+esm2

Ubuntu:Pro:18.04:LTS / openvpn

Package

Name
openvpn
Purl
pkg:deb/ubuntu/openvpn@2.4.4-2ubuntu1.7+esm1?arch=source&distro=esm-infra/bionic

Affected ranges

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

Affected versions

2.*

2.4.3-4ubuntu1
2.4.4-1ubuntu1
2.4.4-2ubuntu1
2.4.4-2ubuntu1.1
2.4.4-2ubuntu1.2
2.4.4-2ubuntu1.3
2.4.4-2ubuntu1.5
2.4.4-2ubuntu1.6
2.4.4-2ubuntu1.7
2.4.4-2ubuntu1.7+esm1

Ubuntu:Pro:20.04:LTS / openvpn

Package

Name
openvpn
Purl
pkg:deb/ubuntu/openvpn@2.4.12-0ubuntu0.20.04.2?arch=source&distro=esm-infra/focal

Affected ranges

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

Affected versions

2.*

2.4.7-1ubuntu2
2.4.7-1ubuntu2.20.04.2
2.4.7-1ubuntu2.20.04.3
2.4.7-1ubuntu2.20.04.4
2.4.12-0ubuntu0.20.04.1
2.4.12-0ubuntu0.20.04.2

Ubuntu:22.04:LTS / openvpn

Package

Name
openvpn
Purl
pkg:deb/ubuntu/openvpn@2.5.11-0ubuntu0.22.04.1?arch=source&distro=jammy

Affected ranges

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

Affected versions

2.*

2.5.1-3ubuntu1
2.5.1-3ubuntu2
2.5.1-3ubuntu4
2.5.1-3ubuntu5
2.5.5-1ubuntu1
2.5.5-1ubuntu3
2.5.5-1ubuntu3.1
2.5.9-0ubuntu0.22.04.2
2.5.9-0ubuntu0.22.04.3
2.5.11-0ubuntu0.22.04.1

Ubuntu:24.04:LTS / openvpn

Package

Name
openvpn
Purl
pkg:deb/ubuntu/openvpn@2.6.14-0ubuntu0.24.04.1?arch=source&distro=noble

Affected ranges

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

Affected versions

2.*

2.6.5-0ubuntu1
2.6.7-1ubuntu1
2.6.9-1ubuntu2
2.6.9-1ubuntu3
2.6.9-1ubuntu4
2.6.9-1ubuntu4.1
2.6.12-0ubuntu0.24.04.1
2.6.12-0ubuntu0.24.04.3
2.6.14-0ubuntu0.24.04.1

Ubuntu:25.04 / openvpn

Package

Name
openvpn
Purl
pkg:deb/ubuntu/openvpn@2.6.14-0ubuntu0.25.04.1?arch=source&distro=plucky

Affected ranges

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

Affected versions

2.*

2.6.12-1ubuntu1
2.6.13-1ubuntu1
2.6.13-1ubuntu2
2.6.13-1ubuntu3
2.6.14-0ubuntu0.25.04.1