Package Instance

Rack has possible DoS Vulnerability in Multipart MIME parsing
There is a possible DoS vulnerability in the Multipart MIME parsing code in Rack. This vulnerability has been assigned the CVE identifier CVE-2023-27530.

Versions Affected: All. Not affected: None Fixed Versions: 3.0.4.2, 2.2.6.3, 2.1.4.3, 2.0.9.3

# Impact
The Multipart MIME parsing code in Rack limits the number of file parts, but does not limit the total number of parts that can be uploaded. Carefully crafted requests can abuse this and cause multipart parsing to take longer than expected.

All users running an affected release should either upgrade or use one of the workarounds immediately.

# Workarounds
A proxy can be configured to limit the POST body size which will mitigate this issue.

Possible Denial of Service Vulnerability in Rack’s header parsing
There is a denial of service vulnerability in the header parsing component of Rack. Carefully crafted input can cause header parsing in Rack to take an unexpected amount of time, possibly resulting in a denial of service attack vector. Any applications that parse headers using Rack (virtually all Rails applications) are impacted. Workarounds Setting `Regexp.timeout` in Ruby 3.2 is a possible workaround.