CVE-2021-22880

Public Exploit

Description

The PostgreSQL adapter in Active Record before 6.1.2.1, 6.0.3.5, 5.2.4.5 suffers from a regular expression denial of service (REDoS) vulnerability. Carefully crafted input can cause the input validation in the `money` type of the PostgreSQL adapter in Active Record to spend too much time in a regular expression, resulting in the potential for a DoS attack. This only impacts Rails applications that are using PostgreSQL along with money type columns that take user input.

Category

7.5
CVSS
Severity: High
CVSS 3.1 •
CVSS 2.0 •
EPSS 5.88% Top 10%
Vendor Advisory fedoraproject.org Vendor Advisory fedoraproject.org Vendor Advisory debian.org Vendor Advisory rubyonrails.org
Affected: n/a https://github.com/rails/rails
Published at:
Updated at:

References

Link Tags
https://hackerone.com/reports/1023899 exploit third party advisory patch
https://discuss.rubyonrails.org/t/cve-2021-22880-possible-dos-vulnerability-in-active-record-postgresql-adapter/77129 patch vendor advisory mitigation
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/XQ3NS4IBYE2I3MVMGAHFZBZBIZGHXHT3/ vendor advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/MO5OJ3F4ZL3UXVLJO6ECANRVZBNRS2IH/ vendor advisory
https://www.debian.org/security/2021/dsa-4929 third party advisory vendor advisory
https://security.netapp.com/advisory/ntap-20210805-0009/ third party advisory

Frequently Asked Questions

What is the severity of CVE-2021-22880?
CVE-2021-22880 has been scored as a high severity vulnerability.
How to fix CVE-2021-22880?
To fix CVE-2021-22880, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2021-22880 being actively exploited in the wild?
It is possible that CVE-2021-22880 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~6% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2021-22880?
CVE-2021-22880 affects n/a https://github.com/rails/rails.
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