[USN-6994-1] Netty vulnerabilities

[Paulo Flabiano Smorigo]

==========================================================================
Ubuntu Security Notice USN-6994-1
September 05, 2024

netty vulnerabilities
==========================================================================

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

- Ubuntu 22.04 LTS

Summary:

Several security issues were fixed in Netty.

Software Description:
- netty: Java NIO client/server socket framework

Details:

It was discovered that Netty did not properly sanitize its input
parameters. A remote attacker could possibly use this issue to cause a
crash. (CVE-2023-34462)

It was discovered that Netty incorrectly handled request cancellation. A
remote attacker could possibly use this issue to cause Netty to consume
resources, leading to a denial of service. (CVE-2023-44487)

Update instructions:

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

Ubuntu 22.04 LTS
  libnetty-java                   1:4.1.48-4+deb11u2build0.22.04.1

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

References:
  https://ubuntu.com/security/notices/USN-6994-1
  CVE-2023-34462, CVE-2023-44487

Package Information:
  https://launchpad.net/ubuntu/+source/netty/1:4.1.48-4+deb11u2build0.22.04.1
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