What’s Vulnerable › Vulnerabilities

CVE-2020-7042

• Severity: medium (CVSS 5.3 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.6% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2020-02-27 · updated 2026-06-17
• Weakness: CWE-295

Description

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).

Affected products

• Fedoraproject Fedora: 30, 31, 32
• Openfortivpn Project Openfortivpn: before 1.12.0 — fixed in 1.12.0
• openSUSE Backports Sle: 15.0-sp1
• openSUSE Leap: 15.1

How to fix

Upgrade to a fixed version: Openfortivpn Project Openfortivpn 1.12.0. Check the vendor advisory for mitigations.

References

• 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%40lists.fedoraproject.org/message/CKNKSGBVYGRRVRLFEFBEKUEJYJR5LWOF/
• 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/SRVVNXCNTNMPCIAZIVR4FAGYCSU53FNA/
• 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

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