Active Record subject to Regular Expression Denial-of-Service (ReDoS)
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.
describes (1)
Related CVEs.
| ID | severity | exploitable | ||
|---|---|---|---|---|
| CVE-2021-22880US | high7.5 | Exploit | ||
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 caus… | ||||
references
External citations — patches, advisories, analysis.
- https://discuss.rubyonrails.org/t/cve-2021-22880-possible-dos-vulnerability-in-active-record-postgresql-adapter/77129WEB
- https://github.com/rails/railsWEB
- https://github.com/rubysec/ruby-advisory-db/blob/master/gems/activerecord/CVE-2021-22880.ymlWEB
- https://groups.google.com/g/rubyonrails-security/c/ZzUqCh9vyhIWEB
- https://hackerone.com/reports/1023899WEB
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/MO5OJ3F4ZL3UXVLJO6ECANRVZBNRS2IHWEB
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/XQ3NS4IBYE2I3MVMGAHFZBZBIZGHXHT3WEB
- https://nvd.nist.gov/vuln/detail/CVE-2021-22880ADVISORY
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