REDHAT-BUG-2393000: Medium severity Netty netty-codec-compression vulnerability
Netty is an asynchronous event-driven network application framework for rapid development of maintainable high performance protocol servers & clients. In netty-codec-compression versions 4.1.124.Final and below, and netty-codec versions 4.2.4.Final and below, when supplied with specially crafted input, BrotliDecoder and certain other decompression decoders will allocate a large number of reachable byte buffers, which can lead to denial of service. BrotliDecoder.decompress has no limit in how often it calls pull, decompressing data 64K bytes at a time. The buffers are saved in the output list, and remain reachable until OOM is hit. This is fixed in versions 4.1.125.Final of netty-codec and 4.2.5.Final of netty-codec-compression.
Affected Software
Event History
Frequently Asked Questions
What is the severity of REDHAT-BUG-2393000?
REDHAT-BUG-2393000 has been classified as a critical vulnerability due to its potential impact on networking applications.
How do I fix REDHAT-BUG-2393000?
To address REDHAT-BUG-2393000, upgrade netty-codec-compression to version 4.1.125.Final or higher, and netty-codec to version 4.2.5.Final or higher.
What software is affected by REDHAT-BUG-2393000?
REDHAT-BUG-2393000 affects netty-codec-compression versions 4.1.124.Final and below, and netty-codec versions 4.2.4.Final and below.
What kind of vulnerabilities does REDHAT-BUG-2393000 exploit?
REDHAT-BUG-2393000 exploits vulnerabilities through specially crafted input that can disrupt normal application behavior.
Is there a workaround for REDHAT-BUG-2393000?
There is no official workaround for REDHAT-BUG-2393000, and it is recommended to apply the patch as soon as possible.