CVE-2019-3804

Name: CVE-2019-3804
Creator: NVD / NIST
Published: 2019-03-26T18:29:00.543+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.5/10EPSS 4.86%

Last modified Jun 17, 2026

CVE-2019-3804 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. It was found that cockpit before version 184 used glib's base64 decode functionality incorrectly resulting in a denial of service attack. An unauthenticated attacker could send a specially crafted request with an invalid base64-encoded cookie which could cause the web service to crash.. EPSS estimates a 4.86% chance of exploitation in the next 30 days.

Description

It was found that cockpit before version 184 used glib's base64 decode functionality incorrectly resulting in a denial of service attack. An unauthenticated attacker could send a specially crafted request with an invalid base64-encoded cookie which could cause the web service to crash.

Metrics

CVSS 3.1

7.5/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS Probability

4.86%

90.9th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Cockpit-Project	Cockpit	< 184
Fedoraproject	Fedora	All versions
Redhat	Virtualization	4.0

References

https://access.redhat.com/errata/RHSA-2019:1569Third Party Advisory
https://access.redhat.com/errata/RHSA-2019:1571Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-3804Issue Tracking, Patch, Third Party Advisory
https://github.com/cockpit-project/cockpit/commit/c51f6177576d7e12Patch, Third Party Advisory
https://github.com/cockpit-project/cockpit/pull/10819Third Party Advisory
https://access.redhat.com/errata/RHSA-2019:1569Third Party Advisory
https://access.redhat.com/errata/RHSA-2019:1571Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-3804Issue Tracking, Patch, Third Party Advisory
https://github.com/cockpit-project/cockpit/commit/c51f6177576d7e12Patch, Third Party Advisory
https://github.com/cockpit-project/cockpit/pull/10819Third Party Advisory

Timeline

Published: Mar 26, 2019
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2019-3804?

How severe is CVE-2019-3804?

CVE-2019-3804 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 4.86% probability of exploitation in the next 30 days.

How do I fix CVE-2019-3804?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2019-3804?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST