Summary
It was discovered that Netty had HTTP request smuggling vulnerabilities. A
remote attacker could used it to extract sensitive information. (CVE-2019-16869,
CVE-2019-20444, CVE-2019-20445, CVE-2020-7238)
Fixed packages 1
| Release | Package | Fixed in |
|---|---|---|
| Ubuntu · 16.04 LTS 16.04:LTS | netty-3.9 | 3.9.0.Final-1ubuntu0.1 |
Vulnerabilities 4
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Critical 9.1
HTTP Request Smuggling in Netty
HttpObjectDecoder.java in Netty before 4.1.44 allows an HTTP header that lacks a colon, which might be interpreted as a separate header with an incorrect syntax, or might be interpreted as an "invalid fold."
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High 7.5
HTTP Request Smuggling in Netty
Netty before 4.1.42.Final mishandles whitespace before the colon in HTTP headers (such as a "Transfer-Encoding : chunked" line), which leads to HTTP request smuggling.
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High 7.5
HTTP Request Smuggling in Netty
Netty 4.1.43.Final allows HTTP Request Smuggling because it mishandles Transfer-Encoding whitespace (such as a [space]Transfer-Encoding:chunked line) and a later Content-Length header. This issue exists because of an incomplete fix for CVE-2019-16869.
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Medium —CVE-2019-20445 EPSS 14%
HTTP Request Smuggling in Netty
HttpObjectDecoder.java in Netty before 4.1.44 allows a Content-Length header to be accompanied by a second Content-Length header, or by a Transfer-Encoding header.