GHSA-hg78-4f6x-99wq

Rack vulnerable to Denial of Service

Source: GitHub Advisory Database (reviewed) High CVE-2018-16470

Packages

Ecosystem	Package	Affected	Fixed in
RubyGems	rack	>= 2.0.4, < 2.0.6	2.0.6

Details

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

There is a possible DoS vulnerability in the multipart parser in Rack before 2.0.6. Specially crafted requests can cause the multipart parser to enter a pathological state, causing the parser to use CPU resources disproportionate to the request size.

References

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

https://nvd.nist.gov/vuln/detail/CVE-2018-16470 advisory
https://access.redhat.com/errata/RHSA-2019:3172 web
https://github.com/rack/rack package
https://github.com/rubysec/ruby-advisory-db/blob/master/gems/rack/CVE-2018-16470.yml web
https://groups.google.com/forum/#!msg/rubyonrails-security/U_x-YkfuVTg/xhvYAmp6AAAJ web
https://groups.google.com/forum/#!topic/ruby-security-ann/Dz4sRl-ktKk web