CVE-2020-7043 Security feature bypass in n/a

What is CVE-2020-7043?

CVE-2020-7043 is a critical 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 before 1.0.2. tunnel.c mishandles certificate validation because hostname comparisons do not consider '\0' characters, as demonstrated by a good.example.com\x00evil.example.com attack.

Weakness: CWE-295

Which versions are affected by CVE-2020-7043?

It affects 4 products.

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

How do I fix CVE-2020-7043?

Upgrade to a fixed version.

Is CVE-2020-7043 being exploited?

There is no known exploitation of CVE-2020-7043 in the wild and no public exploit code.

Other vulnerabilities in Fedoraproject Fedora

• CVE-2024-4577 PHP-CGI OS Command Injection Exploited Critical 9.8
• CVE-2021-39226 Grafana Authentication Bypass Exploited Critical 9.8
• CVE-2019-5544 VMware ESXi and Horizon DaaS OpenSLP Heap-Based Buffer Overflow Exploited Critical 9.8
• CVE-2024-4947 Google Chromium V8 Type Confusion Exploited Critical 9.6
• CVE-2024-4671 Google Chromium Visuals Use-After-Free Exploited Critical 9.6

All Fedoraproject Fedora vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as DEBIAN-CVE-2020-7043, GHSA-4pqj-5gg5-44jh, UBUNTU-CVE-2020-7043.