CVE-2019-3836 Null dereference in gnutls

What is CVE-2019-3836?

CVE-2019-3836 is a medium-severity vulnerability in Fedoraproject Fedora, published on 1 Apr 2019. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

It was discovered in gnutls before version 3.6.7 upstream that there is an uninitialized pointer access in gnutls versions 3.6.3 or later which can be triggered by certain post-handshake messages.

Weakness: CWE-824, CWE-456

Which versions are affected by CVE-2019-3836?

It affects 3 products.

Products include Fedoraproject Fedora, Gnu Gnutls, Opensuse Leap.

How do I fix CVE-2019-3836?

Upgrade to a fixed version.

Is CVE-2019-3836 being exploited?

There is no known exploitation of CVE-2019-3836 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 ALPINE-CVE-2019-3836, DEBIAN-CVE-2019-3836, GHSA-fqw6-7w7w-627p.