CVE-2017-12166: Buffer Overflow
First published: Wed Oct 04 2017(Updated: )
Last updated 11 March 2025
Credit: secalert@redhat.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| OpenVPN Monitor | <2.3.18 | |
| OpenVPN Monitor | >=2.4.0<2.4.4 | |
| Debian Linux | =9.0 | |
| debian/openvpn | 2.5.1-3 2.5.1-3+deb11u1 2.6.3-1+deb12u2 2.6.13-1 2.6.14-1 |
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Reference Links
- http://www.securityfocus.com/bid/101153
- http://www.securitytracker.com/id/1039470
- https://community.openvpn.net/openvpn/wiki/CVE-2017-12166
- https://lists.debian.org/debian-lts-announce/2022/05/msg00002.html
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-12166
- https://nvd.nist.gov/vuln/detail/CVE-2017-12166
- https://launchpad.net/bugs/cve/CVE-2017-12166
- https://security-tracker.debian.org/tracker/CVE-2017-12166
- https://ubuntu.com/security/CVE-2017-12166
- https://www.openwall.com/lists/oss-security/2017/09/28/2
- https://community.openvpn.net/openvpn/changeset/3b1a61e9fb27213c46f76312f4065816bee8ed01/
- https://community.openvpn.net/openvpn/changeset/c7e259160b28e94e4ea7f0ef767f8134283af255/
- https://community.openvpn.net/openvpn/changeset/fce34375295151f548a26c2d0eb30141e427c81a/
- https://community.openvpn.net/openvpn/changeset/a9f5c744d6b09f2495ca48d2c926efd3a4b981e6/
Frequently Asked Questions
What is the severity of CVE-2017-12166?
CVE-2017-12166 is classified as a high severity vulnerability due to the potential for code execution resulting from a buffer overflow.
How do I fix CVE-2017-12166?
To mitigate CVE-2017-12166, upgrade OpenVPN to version 2.3.3 or later, or 2.4.4 or later.
What versions are affected by CVE-2017-12166?
CVE-2017-12166 affects OpenVPN versions prior to 2.3.3 and versions in the 2.4.x range before 2.4.4.
What causes CVE-2017-12166?
CVE-2017-12166 is caused by a buffer overflow vulnerability that occurs when using key-method 1 in OpenVPN.
Is CVE-2017-12166 exploitable remotely?
Yes, CVE-2017-12166 can be exploited remotely, allowing an attacker to execute arbitrary code.
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