drucken bookmarks versenden konfigurieren admin pdf Sicherheit: Zwei Probleme in OpenVPN
Name: |
Zwei Probleme in OpenVPN |
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ID: |
USN-4933-1 |
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Distribution: |
Ubuntu |
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Plattformen: |
Ubuntu 18.04 LTS, Ubuntu 20.04 LTS, Ubuntu 20.10, Ubuntu 21.04 |
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Datum: |
Mi, 5. Mai 2021, 00:16 |
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Referenzen: |
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-15078
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-11810 |
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Applikationen: |
OpenVPN |
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Originalnachricht |
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This is an OpenPGP/MIME signed message (RFC 4880 and 3156) --BhOk4S0jnoNr4SA2vWxDSZAiiKWmxzK0R Content-Type: multipart/mixed; boundary="tkbuHEt4ACoXvb8xFqRZgAn0pgzycjXn5"; protected-headers="v1" From: Marc Deslauriers <marc.deslauriers@canonical.com> Reply-To: Ubuntu Security <security@ubuntu.com> To: "ubuntu-security-announce@lists.ubuntu.com" <ubuntu-security-announce@lists.ubuntu.com> Message-ID: <48dce7d8-7eae-4100-30ed-b0f161028652@canonical.com> Subject: [USN-4933-1] OpenVPN vulnerabilities
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========================================================================== Ubuntu Security Notice USN-4933-1 May 04, 2021
openvpn vulnerabilities ==========================================================================
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 21.04 - Ubuntu 20.10 - Ubuntu 20.04 LTS - Ubuntu 18.04 LTS
Summary:
everal security issues were fixed in OpenVPN.
Software Description: - openvpn: virtual private network software
Details:
It was discovered that OpenVPN incorrectly handled certain data channel v2 packets. A remote attacker could possibly use this issue to inject packets using a victim's peer-id. This issue only affected Ubuntu 18.04 LTS and Ubuntu 20.04 LTS. (CVE-2020-11810)
It was discovered that OpenVPN incorrectly handled deferred authentication. When a server is configured to use deferred authentication, a remote attacker could possibly use this issue to bypass authentication and access control channel data. (CVE-2020-15078)
Update instructions:
The problem can be corrected by updating your system to the following package versions:
Ubuntu 21.04: openvpn 2.5.1-1ubuntu1.1
Ubuntu 20.10: openvpn 2.4.9-3ubuntu1.1
Ubuntu 20.04 LTS: openvpn 2.4.7-1ubuntu2.20.04.2
Ubuntu 18.04 LTS: openvpn 2.4.4-2ubuntu1.5
In general, a standard system update will make all the necessary changes.
References: https://ubuntu.com/security/notices/USN-4933-1 CVE-2020-11810, CVE-2020-15078
Package Information: https://launchpad.net/ubuntu/+source/openvpn/2.5.1-1ubuntu1.1 https://launchpad.net/ubuntu/+source/openvpn/2.4.9-3ubuntu1.1 https://launchpad.net/ubuntu/+source/openvpn/2.4.7-1ubuntu2.20.04.2 https://launchpad.net/ubuntu/+source/openvpn/2.4.4-2ubuntu1.5
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