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openvpn openvpn vulnerabilities and exploits
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7.4
CVSSv3
CVE-2017-7520
OpenVPN versions prior to 2.4.3 and prior to 2.3.17 are vulnerable to denial-of-service and/or possibly sensitive memory leak triggered by man-in-the-middle attacker.
Openvpn Openvpn 2.4.0
Openvpn Openvpn 2.4.1
Openvpn Openvpn 2.4.2
Openvpn Openvpn
1 Article
5.9
CVSSv3
CVE-2017-7521
OpenVPN versions prior to 2.4.3 and prior to 2.3.17 are vulnerable to remote denial-of-service due to memory exhaustion caused by memory leaks and double-free issue in extract_x509_extension().
Openvpn Openvpn
Openvpn Openvpn 2.4.0
Openvpn Openvpn 2.4.2
Openvpn Openvpn 2.4.1
1 Article
6.5
CVSSv3
CVE-2017-7522
OpenVPN versions prior to 2.4.3 and prior to 2.3.17 are vulnerable to denial-of-service by authenticated remote attacker via sending a certificate with an embedded NULL character.
Openvpn Openvpn 2.4.0
Openvpn Openvpn 2.4.1
Openvpn Openvpn
Openvpn Openvpn 2.4.2
1 Article
6.5
CVSSv3
CVE-2017-7479
OpenVPN versions prior to 2.3.15 and prior to 2.4.2 are vulnerable to reachable assertion when packet-ID counter rolls over resulting into Denial of Service of server by authenticated attacker.
Openvpn Openvpn
Openvpn Openvpn 2.4.0
Openvpn Openvpn 2.4.1
NA
CVE-2006-1629
OpenVPN 2.0 up to and including 2.0.5 allows remote malicious servers to execute arbitrary code on the client by using setenv with the LD_PRELOAD environment variable.
Openvpn Openvpn 2.0
Openvpn Openvpn Access Server 2.0.3
Openvpn Openvpn 2.0.4
Openvpn Openvpn Access Server 2.0.5
Openvpn Openvpn Access Server 2.0.1
Openvpn Openvpn Access Server 2.0.2
NA
CVE-2005-3393
Format string vulnerability in the foreign_option function in options.c for OpenVPN 2.0.x allows remote clients to execute arbitrary code via format string specifiers in a push of the dhcp-option command option.
Openvpn Openvpn Access Server 2.0.1
Openvpn Openvpn Access Server 2.0.2
Openvpn Openvpn 2.0
Openvpn Openvpn 2.0 Beta11
7.4
CVSSv3
CVE-2021-3547
OpenVPN 3 Core Library version 3.6 and 3.6.1 allows a man-in-the-middle malicious user to bypass the certificate authentication by issuing an unrelated server certificate using the same hostname found in the verify-x509-name option in a client configuration.
Openvpn Openvpn 3.6
Openvpn Openvpn 3.6.1
7.5
CVSSv3
CVE-2023-46849
Using the --fragment option in certain configuration setups OpenVPN version 2.6.0 to 2.6.6 allows an malicious user to trigger a divide by zero behaviour which could cause an application crash, leading to a denial of service.
Openvpn Openvpn
Openvpn Openvpn Access Server
Openvpn Openvpn Access Server 2.12.1
Openvpn Openvpn Access Server 2.12.0
Debian Debian Linux 12.0
Fedoraproject Fedora 39
9.8
CVSSv3
CVE-2023-46850
Use after free in OpenVPN version 2.6.0 to 2.6.6 may lead to undefined behavoir, leaking memory buffers or remote execution when sending network buffers to a remote peer.
Openvpn Openvpn
Openvpn Openvpn Access Server
Debian Debian Linux 12.0
Fedoraproject Fedora 39
7.8
CVSSv3
CVE-2021-3606
OpenVPN before version 2.5.3 on Windows allows local users to load arbitrary dynamic loadable libraries via an OpenSSL configuration file if present, which allows the user to run arbitrary code with the same privilege level as the main OpenVPN process (openvpn.exe).
Openvpn Openvpn
CVSSv3
CVSSv2
CVSSv3
VMScore
Recommendations:
CVE-2023-7073
CVE-2024-5496
CVE-2024-5495
XPath injection
bypass
CVE-2024-30043
CVE-2024-24919
denial of service
CVE-2024-35468
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