========================================================================== Ubuntu Security Notice USN-7855-1 November 04, 2025
unbound vulnerability ========================================================================== A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 25.10 - Ubuntu 25.04 - Ubuntu 24.04 LTS - Ubuntu 22.04 LTS Summary: Unbound could be made to hijack domains if it received specially crafted network traffic. Software Description: - unbound: validating, recursive, caching DNS resolver Details: Yuxiao Wu, Yunyi Zhang, Baojun Liu, and Haixin Duan discovered that Unbound incorrectly handled certain promiscuous NS RRSets. A remote attacker could possibly use this issue to perform a domain hijack attack. Update instructions: The problem can be corrected by updating your system to the following package versions: Ubuntu 25.10 libunbound8 1.22.0-2ubuntu2.1 unbound 1.22.0-2ubuntu2.1 Ubuntu 25.04 libunbound8 1.22.0-1ubuntu1.2 unbound 1.22.0-1ubuntu1.2 Ubuntu 24.04 LTS libunbound8 1.19.2-1ubuntu3.6 unbound 1.19.2-1ubuntu3.6 Ubuntu 22.04 LTS libunbound8 1.13.1-1ubuntu5.13 unbound 1.13.1-1ubuntu5.13 In general, a standard system update will make all the necessary changes. References: https://ubuntu.com/security/notices/USN-7855-1 CVE-2025-11411 Package Information: https://launchpad.net/ubuntu/+source/unbound/1.22.0-2ubuntu2.1 https://launchpad.net/ubuntu/+source/unbound/1.22.0-1ubuntu1.2 https://launchpad.net/ubuntu/+source/unbound/1.19.2-1ubuntu3.6 https://launchpad.net/ubuntu/+source/unbound/1.13.1-1ubuntu5.13
OpenPGP_signature.asc
Description: OpenPGP digital signature
