CVE-2021-32823

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.

How to fix CVE-2021-32823

To remediate CVE-2021-32823, upgrade the affected package to a fixed version below.

• —upgrade to 13.10.5 or later
• —no fix listed
• —upgrade to 2.4.10 or later

Is CVE-2021-32823 being exploited?

Low — EPSS is 0.2%, meaning exploitation activity has not been observed at scale.

Affected packages (3)

• >= 12.0.0, < 13.10.5, >= 13.11.0, < 13.11.5, >= 13.12.0, < 13.12.2
• from 0
• from 0, < 2.4.10

CVSS scores

References (9)

• ADVISORYnvd.nist.gov/vuln/detail/CVE-2021-32823
• ADVISORYsecurity-tracker.debian.org/tracker/CVE-2021-32823
• PATCHgithub.com/dmendel/bindata
• WEBabout.gitlab.com/releases/2021/06/01/security-release-gitlab-13-12-2-released/#update-bindata-dependency