CVE-2021-4213

Name: CVE-2021-4213
Creator: NVD / NIST
Published: 2022-08-24T16:15:09.98+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.5/10EPSS 1.20%

Last modified Jun 17, 2026

CVE-2021-4213 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. A flaw was found in JSS, where it did not properly free up all memory. Over time, the wasted memory builds up in the server memory, saturating the server’s RAM. EPSS estimates a 1.20% chance of exploitation in the next 30 days.

Description

A flaw was found in JSS, where it did not properly free up all memory. Over time, the wasted memory builds up in the server memory, saturating the server’s RAM. This flaw allows an attacker to force the invocation of an out-of-memory process, causing a denial of service.

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

1.20%

64.2th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Dogtagpki	Network Security Services For Java	< 4.9.3
Dogtagpki	Network Security Services For Java	>= 5.0.0, < 5.1.0
Redhat	Enterprise Linux	8.0
Debian	Debian Linux	10.0
Debian	Debian Linux	11.0

References

https://access.redhat.com/security/cve/CVE-2021-4213Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2042900Issue Tracking, Patch, Third Party Advisory
https://github.com/dogtagpki/jss/commit/3aabe0e9d59b0a42e68ac8cd0468f9c5179967d2Patch, Third Party Advisory
https://github.com/dogtagpki/jss/commit/5922560a78d0dee61af8a33cc9cfbf4cfa291448Patch, Third Party Advisory
https://security-tracker.debian.org/tracker/CVE-2021-4213Third Party Advisory
https://access.redhat.com/security/cve/CVE-2021-4213Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2042900Issue Tracking, Patch, Third Party Advisory
https://github.com/dogtagpki/jss/commit/3aabe0e9d59b0a42e68ac8cd0468f9c5179967d2Patch, Third Party Advisory
https://github.com/dogtagpki/jss/commit/5922560a78d0dee61af8a33cc9cfbf4cfa291448Patch, Third Party Advisory
https://security-tracker.debian.org/tracker/CVE-2021-4213Third Party Advisory

Timeline

Published: Aug 24, 2022
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-4213?

How severe is CVE-2021-4213?

CVE-2021-4213 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 1.20% probability of exploitation in the next 30 days.

How do I fix CVE-2021-4213?

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-2021-4213?

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

Scan your code now

Source: NVD / NIST