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GHSA-579w-22j4-4749
No affected components available
There is a potential denial of service vulnerability present in ActiveRecord's PostgreSQL adapter.
This has been assigned the CVE identifier CVE-2022-44566.
Versions Affected: All. Not affected: None.
Fixed Versions
- 2.3.18.47 (Rails LTS, which is a paid service and not part of the rubygem)
- 3.2.22.34 (Rails LTS, which is a paid service and not part of the rubygem)
- 4.2.11.27 (Rails LTS, which is a paid service and not part of the rubygem)
- 5.2.8.15 (Rails LTS, which is a paid service and not part of the rubygem)
- 6.1.7.1
- 7.0.4.1
Impact
In ActiveRecord < 7.0.4.1 and < 6.1.7.1, when a value outside the range for a 64bit signed integer is provided to the PostgreSQL connection adapter, it will treat the target column type as numeric. Comparing integer values against numeric values can result in a slow sequential scan resulting in potential Denial of Service.
Releases
The fixed releases are available at the normal locations.
Workarounds
Ensure that user supplied input which is provided to ActiveRecord clauses do not contain integers wider than a signed 64bit representation or floats.
Patches
To aid users who aren't able to upgrade immediately we have provided patches for the supported release series in accordance with our maintenance policy 1 regarding security issues. They are in git-am format and consist of a single changeset.
6-1-Added-integer-width-check-to-PostgreSQL-Quoting.patch - Patch for 6.1 series 7-0-Added-integer-width-check-to-PostgreSQL-Quoting.patch - Patch for 7.0 series
The vulnerability can be exploited over the network without needing physical access. It is easy for an attacker to exploit this vulnerability. An attacker does not need any special privileges or access rights. No user interaction is needed for the attacker to exploit this vulnerability. The impact is confined to the system where the vulnerability exists. There is a high impact on the availability of the system.
Exploitation attempts have been detected. Elevated vigilance and prompt remediation are advised.
The exploit probability is very low. The vulnerability is unlikely to be exploited in the next 30 days.
We did not find any exploit available. Neither in GitHub repositories nor in the Exploit-Database.
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