CVE-2020-7042 Security feature bypass in n/a

Medium 5.3 Published Updated

A flaw in openfortivpn mishandles certificate validation due to uninitialized memory, potentially allowing acceptance of malformed certificates and bypassing security checks.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
Not needed
Fix
Available

What is CVE-2020-7042?

CVE-2020-7042 is a medium-severity vulnerability in Fedoraproject Fedora, published on 27 Feb 2020. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official 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).

Weakness: CWE-908, CWE-295

Which versions are affected by CVE-2020-7042?

It affects 4 products.

Products include Fedoraproject Fedora, Openfortivpn Project Openfortivpn, Opensuse Backports Sle, Opensuse Leap.

How do I fix CVE-2020-7042?

Upgrade to a fixed version.

Is CVE-2020-7042 being exploited?

There is no known exploitation of CVE-2020-7042 in the wild and no public exploit code.

All Fedoraproject Fedora vulnerabilities

Sources

Also known as DEBIAN-CVE-2020-7042, GHSA-8w9v-97h7-m2j5, UBUNTU-CVE-2020-7042.

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