USN-8742-1: Netty vulnerability
Publication date
10 September 2026
Overview
Netty could be exposed to cache poisoning.
Releases
Packages
- netty - event-driven asynchronous network application framework
Details
It was discovered that Netty incorrectly validates the bailiwick of NS
records. An attacker could possibly use this issue to facilitate DNS
cache poisoning attacks.
It was discovered that Netty incorrectly validates the bailiwick of NS
records. An attacker could possibly use this issue to facilitate DNS
cache poisoning attacks.
Update instructions
In general, a standard system update will make all the necessary changes.
Learn more about how to get the fixes.The problem can be corrected by updating your system to the following package versions:
| Ubuntu Release | Package Version | ||
|---|---|---|---|
| 24.04 LTS noble | libnetty-java – 1:4.1.48-9ubuntu0.2+esm2 | ||
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