CVE-2024-21647
CVSS 3.1 Score 7.5 of 10 (high)
Details
Published Jan 8, 2024
Updated: Jan 11, 2024
CWE ID 444
Summary
CVE-2024-21647 is a vulnerability affecting the Puma web server used for Ruby/Rack applications. Before version 6.4.2, Puma displayed incorrect behavior when interpreting chunked transfer encoding bodies, leading to HTTP request smuggling. This issue allowed attackers to cause unlimited resource consumption, including CPU and network bandwidth. The flaw has been rectified in versions 6.4.2 and 5.6.8 by implementing a limit on the size of chunk extensions.
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