~ / search / GHSA-rqv2-275x-2jq5

GHSA-rqv2-275x-2jq5

Denial of service via multipart parsing in Rack

Source: GitHub Advisory Database (reviewed) Low CVE-2022-44572

Packages

EcosystemPackageAffectedFixed in
RubyGems rack >= 2.0.0, < 2.0.9.2 2.0.9.2
RubyGems rack >= 2.1.0.0, < 2.1.4.2 2.1.4.2
RubyGems rack >= 2.2.0.0, < 2.2.6.1 2.2.6.1
RubyGems rack >= 3.0.0.0, < 3.0.4.1 3.0.4.1

Details

As written in the advisory (Markdown source, shown as plain text).

There is a denial of service vulnerability in the multipart parsing component of Rack. This vulnerability has been assigned the CVE identifier CVE-2022-44572. Versions Affected: >= 2.0.0 Not affected: None. Fixed Versions: 2.0.9.2, 2.1.4.2, 2.2.6.1, 3.0.0.1 Impact Carefully crafted input can cause RFC2183 multipart boundary parsing in Rack to take an unexpected amount of time, possibly resulting in a denial of service attack vector. Any applications that parse multipart posts using Rack (virtually all Rails applications) are impacted. Releases The fixed releases are available at the normal locations. Workarounds There are no feasible workarounds for this issue. Patches To aid users who aren’t able to upgrade immediately we have provided patches for the two supported release series. They are in git-am format and consist of a single changeset. 2-0-Forbid-control-characters-in-attributes.patch - Patch for 2.0 series 2-1-Forbid-control-characters-in-attributes.patch - Patch for 2.1 series 2-2-Forbid-control-characters-in-attributes.patch - Patch for 2.2 series 3-0-Forbid-control-characters-in-attributes.patch - Patch for 3.0 series

References

External links from the advisory. They lead to third-party sites.