- Vulnerability/
- USN-6860-1
USN-6860-1: OpenVPN vulnerabilities
First published: Tue Jul 02 2024(Updated: )
Reynir Björnsson discovered that OpenVPN incorrectly handled terminating client connections. A remote authenticated client could possibly use this issue to keep the connection active, bypassing certain security policies. This issue only affected Ubuntu 23.10, and Ubuntu 24.04 LTS. (CVE-2024-28882) Reynir Björnsson discovered that OpenVPN incorrectly handled certain control channel messages with nonprintable characters. A remote attacker could possibly use this issue to cause OpenVPN to consume resources, or fill up log files with garbage, leading to a denial of service. (CVE-2024-5594)
| Affected Software | Affected Version | How to fix |
|---|---|---|
| All of | ||
| ubuntu/openvpn | <2.6.9-1ubuntu4.1 | 2.6.9-1ubuntu4.1 |
| Ubuntu | =24.04 | |
| All of | ||
| ubuntu/openvpn | <2.6.5-0ubuntu1.2 | 2.6.5-0ubuntu1.2 |
| Ubuntu | =23.10 | |
| All of | ||
| ubuntu/openvpn | <2.5.9-0ubuntu0.22.04.3 | 2.5.9-0ubuntu0.22.04.3 |
| Ubuntu | =22.04 | |
| All of | ||
| ubuntu/openvpn | <2.4.12-0ubuntu0.20.04.2 | 2.4.12-0ubuntu0.20.04.2 |
| Ubuntu | =20.04 |
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Reference Links
- https://ubuntu.com/security/CVE-2024-5594
- https://ubuntu.com/security/CVE-2024-28882
- https://ubuntu.com/security/notices/USN-7340-1
- https://launchpad.net/ubuntu/+source/openvpn/2.6.9-1ubuntu4.1
- https://launchpad.net/ubuntu/+source/openvpn/2.6.5-0ubuntu1.2
- https://launchpad.net/ubuntu/+source/openvpn/2.5.9-0ubuntu0.22.04.3
- https://launchpad.net/ubuntu/+source/openvpn/2.4.12-0ubuntu0.20.04.2
- https://ubuntu.com/security/notices/USN-6860-1 (Advisory)
Frequently Asked Questions
What is the severity of USN-6860-1?
The USN-6860-1 vulnerability is considered critical as it allows remote authenticated clients to bypass security policies.
How do I fix USN-6860-1?
To fix USN-6860-1, update OpenVPN to version 2.6.9-1ubuntu4.1 or later for Ubuntu 24.04 and 2.6.5-0ubuntu1.2 or later for Ubuntu 23.10.
Which versions of Ubuntu are affected by USN-6860-1?
The USN-6860-1 vulnerability affects Ubuntu 23.10 and Ubuntu 24.04 LTS.
Does USN-6860-1 affect earlier versions of OpenVPN on Ubuntu?
No, USN-6860-1 only affects specific versions of OpenVPN and does not impact earlier versions on Ubuntu.
What is the nature of the issue in USN-6860-1?
The issue in USN-6860-1 involves OpenVPN incorrectly handling the termination of client connections.
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