Package        : netty-3.9
Version        : 3.9.0.Final-1+deb8u1
CVE ID         : CVE-2014-0193 CVE-2014-3488 CVE-2019-16869 CVE-2019-20444 
                 CVE-2019-20445 CVE-2020-7238
Debian Bug     : 746639 941266 950966 950967


Several vulnerabilities were discovered in Netty, a Java NIO
client/server socket framework:

CVE-2014-0193

    WebSocket08FrameDecoder allows remote attackers to cause a denial
    of service (memory consumption) via a TextWebSocketFrame followed
    by a long stream of ContinuationWebSocketFrames.

CVE-2014-3488

    The SslHandler allows remote attackers to cause a denial of
    service (infinite loop and CPU consumption) via a crafted
    SSLv2Hello message.

CVE-2019-16869

    Netty 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 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 allows a Content-Length header to be
    accompanied by a second Content-Length header, or by a
    Transfer-Encoding header.

CVE-2020-7238

    Netty allows HTTP Request Smuggling because it mishandles
    Transfer-Encoding whitespace (such as a
    [space]Transfer-Encoding:chunked line) and a later Content-Length
    header.

For Debian 8 "Jessie", these problems have been fixed in version
3.9.0.Final-1+deb8u1.

We recommend that you upgrade your netty-3.9 packages.

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