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AUSCERT External Security Bulletin Redistribution
ESB-2020.3655
USN-4600-1: Netty vulnerabilities
23 October 2020
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AusCERT Security Bulletin Summary
---------------------------------
Product: Netty
Publisher: Ubuntu
Operating System: Ubuntu
Impact/Access: Access Confidential Data -- Remote/Unauthenticated
Reduced Security -- Remote/Unauthenticated
Resolution: Patch/Upgrade
CVE Names: CVE-2020-7238 CVE-2019-20445 CVE-2019-20444
CVE-2019-16869
Reference: ESB-2020.3243
ESB-2020.3055
ESB-2020.3049
ESB-2020.2619
Original Bulletin:
https://usn.ubuntu.com/4600-1/
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USN-4600-1: Netty vulnerabilities
22 October 2020
Netty could be made to expose sensitive information over the
network.
Releases
o Ubuntu 16.04 LTS
Packages
o 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
o libnetty-3.9-java - 3.9.0.Final-1ubuntu0.1
In general, a standard system update will make all the necessary changes.
References
o CVE-2019-20444
o CVE-2019-16869
o CVE-2020-7238
o CVE-2019-20445
Related notices
o USN-4532-1 : libnetty-3.9-java, netty-3.9
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