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==========================================================================
Ubuntu Security Notice USN-4600-1
October 22, 2020

netty-3.9 vulnerabilities
==========================================================================

A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 16.04 LTS

Summary:

Netty could be made to expose sensitive information over the
network.

Software Description:
- netty-3.9: Asynchronous event-driven network application framework

Details:

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)

Update instructions:

The problem can be corrected by updating your system to the following
package versions:

Ubuntu 16.04 LTS:
  libnetty-3.9-java               3.9.0.Final-1ubuntu0.1

In general, a standard system update will make all the necessary changes.

References:
  https://usn.ubuntu.com/4600-1
  CVE-2019-16869, CVE-2019-20444, CVE-2019-20445, CVE-2020-7238

Package Information:
  https://launchpad.net/ubuntu/+source/netty-3.9/3.9.0.Final-1ubuntu0.1

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