CVE-2021-37147 in Apache and Debian Products
Published on November 3, 2021
Request Smuggling - LF line ending
Weakness Types
Improper Input Validation
The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.
What is a HTTP Request Smuggling Vulnerability?
When malformed or abnormal HTTP requests are interpreted by one or more entities in the data flow between the user and the web server, such as a proxy or firewall, they can be interpreted inconsistently, allowing the attacker to "smuggle" a request to one device without the other device being aware of it.
CVE-2021-37147 has been classified to as a HTTP Request Smuggling vulnerability or weakness.
Products Associated with CVE-2021-37147
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Affected Versions
Apache Software Foundation Apache Traffic Server Version 8.0.0 to 8.1.2 and 9.0.0 to 9.1.0 is affected by CVE-2021-37147Exploit Probability
EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.