CVE-2021-32823

Name: CVE-2021-32823
Creator: NVD / NIST
Published: 2021-06-24T00:15:08.103+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

LOWCVSS 3.7/10EPSS 1.87%

Last modified Jun 17, 2026

CVE-2021-32823 is a low-severity vulnerability rated 3.7/10 on the CVSS scale. In the bindata RubyGem before version 2.4.10 there is a potential denial-of-service vulnerability. In affected versions it is very slow for certain classes in BinData to be created. EPSS estimates a 1.87% chance of exploitation in the next 30 days.

Description

In the bindata RubyGem before version 2.4.10 there is a potential denial-of-service vulnerability. In affected versions it is very slow for certain classes in BinData to be created. For example BinData::Bit100000, BinData::Bit100001, BinData::Bit100002, BinData::Bit<N>. In combination with <user_input>.constantize there is a potential for a CPU-based DoS. In version 2.4.10 bindata improved the creation time of Bits and Integers.

Metrics

CVSS 3.1

3.7/10

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

EPSS Probability

1.87%

76.6th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-400

Affected Software

Vendor	Product	Versions
Bindata Project	Bindata	< 2.4.10
Gitlab	Gitlab	>= 12.0, < 13.10.5
Gitlab	Gitlab	>= 13.11.0, < 13.11.5
Gitlab	Gitlab	>= 13.12.0, < 13.12.2

References

https://about.gitlab.com/releases/2021/06/01/security-release-gitlab-13-12-2-released/#update-bindata-dependencyThird Party Advisory
https://github.com/dmendel/bindata/blob/v2.4.10/ChangeLog.rdoc#version-2410-2021-05-18-Third Party Advisory
https://github.com/dmendel/bindata/commit/d99f050b88337559be2cb35906c1f8da49531323Patch, Third Party Advisory
https://github.com/rubysec/ruby-advisory-db/issues/476Exploit, Patch, Third Party Advisory
https://rubygems.org/gems/bindataThird Party Advisory
https://about.gitlab.com/releases/2021/06/01/security-release-gitlab-13-12-2-released/#update-bindata-dependencyThird Party Advisory
https://github.com/dmendel/bindata/blob/v2.4.10/ChangeLog.rdoc#version-2410-2021-05-18-Third Party Advisory
https://github.com/dmendel/bindata/commit/d99f050b88337559be2cb35906c1f8da49531323Patch, Third Party Advisory
https://github.com/rubysec/ruby-advisory-db/issues/476Exploit, Patch, Third Party Advisory
https://rubygems.org/gems/bindataThird Party Advisory

Timeline

Published: Jun 24, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-32823?

How severe is CVE-2021-32823?

CVE-2021-32823 has a CVSS score of 3.7/10 (LOW severity). The EPSS model estimates a 1.87% probability of exploitation in the next 30 days.

How do I fix CVE-2021-32823?

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-2021-32823?

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

Scan your code now

Source: NVD / NIST