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Debian LTS: Security Advisory for netty-3.9 (DLA-2365-1)
Information
Severity
Severity
Family
Family
CVSSv2 Base
CVSSv2 Base
CVSSv2 Vector
CVSSv2 Vector
Solution Type
Solution Type
Created
Created
Modified
Modified
Summary
The remote host is missing an update for the 'netty-3.9' package(s) announced via the DLA-2365-1 advisory.
Insight
Insight
Several vulnerabilities have been discovered in netty-3.9, a Java NIO client/server socket framework. CVE-2019-16869 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. CVE-2019-20444 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.' CVE-2019-20445 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.
Affected Software
Affected Software
'netty-3.9' package(s) on Debian Linux.
Detection Method
Detection Method
Checks if a vulnerable package version is present on the target host.
Solution
Solution
For Debian 9 stretch, these problems have been fixed in version 3.9.9.Final-1+deb9u1. We recommend that you upgrade your netty-3.9 packages.