CVE-2020-7042
First published: Thu Feb 27 2020(Updated: )
An issue was discovered in openfortivpn 1.11.0 when used with OpenSSL 1.0.2 or later. tunnel.c mishandles certificate validation because the hostname check operates on uninitialized memory. The outcome is that a valid certificate is never accepted (only a malformed certificate may be accepted).
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Openfortivpn Project Openfortivpn | <1.12.0 | |
| OpenSSL OpenSSL | <=1.0.2 | |
| Fedoraproject Fedora | =30 | |
| Fedoraproject Fedora | =31 | |
| Fedoraproject Fedora | =32 | |
| openSUSE Backports SLE | =15.0-sp1 | |
| openSUSE Leap | =15.1 |
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Reference Links
- http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00009.html
- http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00011.html
- https://github.com/adrienverge/openfortivpn/commit/9eee997d599a89492281fc7ffdd79d88cd61afc3
- https://github.com/adrienverge/openfortivpn/commit/cd9368c6a1b4ef91d77bb3fdbe2e5bc34aa6f4c4
- https://github.com/adrienverge/openfortivpn/issues/536
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/CKNKSGBVYGRRVRLFEFBEKUEJYJR5LWOF/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/FF6HYIBREQGATRM5COF57MRQWKOKCWZ3/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/SRVVNXCNTNMPCIAZIVR4FAGYCSU53FNA/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SRVVNXCNTNMPCIAZIVR4FAGYCSU53FNA/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FF6HYIBREQGATRM5COF57MRQWKOKCWZ3/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/CKNKSGBVYGRRVRLFEFBEKUEJYJR5LWOF/
Frequently Asked Questions
What is CVE-2020-7042?
CVE-2020-7042 is a vulnerability in openfortivpn 1.11.0 when used with OpenSSL 1.0.2 or later that mishandles certificate validation, allowing a valid certificate to never be accepted.
What is the severity of CVE-2020-7042?
The severity of CVE-2020-7042 is medium with a CVSS score of 5.3.
Which software versions are affected by CVE-2020-7042?
Versions up to and excluding openfortivpn 1.12.0 and OpenSSL 1.0.2 are affected by CVE-2020-7042.
How can I fix CVE-2020-7042?
To fix CVE-2020-7042, update to a version of openfortivpn above 1.12.0 or use a version of OpenSSL later than 1.0.2.
Where can I find more information about CVE-2020-7042?
You can find more information about CVE-2020-7042 at the following references: http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00009.html, http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00011.html, and https://github.com/adrienverge/openfortivpn/commit/9eee997d599a89492281fc7ffdd79d88cd61afc3.
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