------------------------------------------------------------------------- Debian LTS Advisory DLA-2365-1 debian-lts@lists.debian.org https://www.debian.org/lts/security/ Roberto C. Sánchez September 04, 2020 https://wiki.debian.org/LTS ------------------------------------------------------------------------- Package : netty-3.9 Version : 3.9.9.Final-1+deb9u1 CVE ID : CVE-2019-16869 CVE-2019-20444 CVE-2019-20445 Debian Bug : 941266 950966 950967 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. 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. For the detailed security status of netty-3.9 please refer to its security tracker page at: https://security-tracker.debian.org/tracker/netty-3.9 Further information about Debian LTS security advisories, how to apply these updates to your system and frequently asked questions can be found at: https://wiki.debian.org/LTS
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