CVE-2017-7508 - Reachable Assertion

Severity

50%

Complexity

99%

Confidentiality

48%

OpenVPN versions before 2.4.3 and before 2.3.17 are vulnerable to remote denial-of-service when receiving malformed IPv6 packet.

OpenVPN versions before 2.4.3 and before 2.3.17 are vulnerable to remote denial-of-service when receiving malformed IPv6 packet.

CVSS 3.0 Base Score 7.5. CVSS Attack Vector: network. CVSS Attack Complexity: low. CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H).

CVSS 2.0 Base Score 5. CVSS Attack Vector: network. CVSS Attack Complexity: low. CVSS Vector: (AV:N/AC:L/Au:N/C:N/I:N/A:P).

Demo Examples

Reachable Assertion

CWE-617

In the excerpt below, an AssertionError (an unchecked exception) is thrown if the user hasn't entered an email address in an HTML form.


               
assert email != null;

Overview

First reported 7 years ago

2017-06-27 13:29:00

Last updated 5 years ago

2019-10-03 00:03:00

Affected Software

OpenVPN

OpenVPN 2.4.0

2.4.0

OpenVPN 2.4.0 Alpha 2

2.4.0

OpenVPN 2.4.0 Beta 1

2.4.0

OpenVPN 2.4.0 Beta 2

2.4.0

OpenVPN 2.4.0 Release Candidate 1

2.4.0

OpenVPN 2.4.0 Release Candidate 2

2.4.0

OpenVPN 2.4.1

2.4.1

OpenVPN 2.4.2

2.4.2

References

DSA-3900

99230

Third Party Advisory, VDB Entry

1038768

https://community.openvpn.net/openvpn/wiki/VulnerabilitiesFixedInOpenVPN243

Vendor Advisory

Stay updated

ExploitPedia is constantly evolving. Sign up to receive a notification when we release additional functionality.

Get in touch

If you'd like to report a bug or have any suggestions for improvements then please do get in touch with us using this form. We will get back to you as soon as we can.