CVE-2021-22880
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.
Predictions
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
No mitigations published for this CVE yet.
The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.
✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here withsource_tier=community-verified.
OS impact
SUSE Affected 1 release
| Version | Status | Fixed in |
|---|---|---|
| — | Affected | — |
Debian Fixed 5 releases
| Version | Status | Fixed in |
|---|---|---|
| trixie | Fixed | 2:6.0.3.5+dfsg-1 |
| sid | Fixed | 2:6.0.3.5+dfsg-1 |
| forky | Fixed | 2:6.0.3.5+dfsg-1 |
| bullseye | Fixed | 2:6.0.3.5+dfsg-1 |
| bookworm | Fixed | 2:6.0.3.5+dfsg-1 |
Package impact
| Ecosystem | Package | Vulnerable | Fixed |
|---|---|---|---|
| RubyGems | activerecord | !< 4.2.0||<~> 5.2.4, >= 5.2.4.5 | ~> 5.2.4, >= 5.2.4.5 |
| RubyGems | activerecord | >=5.0.0,<5.2.4.5 | 5.2.4.5 |
| RubyGems | activerecord | >=6.0.0,<6.0.3.5 | 6.0.3.5 |
| RubyGems | activerecord | >=6.1.0,<6.1.2.1 | 6.1.2.1 |
References
- https://groups.google.com/g/rubyonrails-security/c/ZzUqCh9vyhI
- https://www.suse.com/security/cve/CVE-2021-22880.html
- https://nvd.nist.gov/vuln/detail/CVE-2021-22880
- https://hackerone.com/reports/1023899
- https://discuss.rubyonrails.org/t/cve-2021-22880-possible-dos-vulnerability-in-active-record-postgresql-adapter/77129
- https://github.com/rails/rails
- https://github.com/rubysec/ruby-advisory-db/blob/master/gems/activerecord/CVE-2021-22880.yml
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/MO5OJ3F4ZL3UXVLJO6ECANRVZBNRS2IH
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/XQ3NS4IBYE2I3MVMGAHFZBZBIZGHXHT3
- https://security.netapp.com/advisory/ntap-20210805-0009
- https://www.debian.org/security/2021/dsa-4929
- https://security-tracker.debian.org/tracker/CVE-2021-22880
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.