SUSE-SU-2024:1923-1

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SUSE-SU-2024:1923-1

Summary: Security update for unbound

Details: This update for unbound fixes the following issues: unbound was updated to 1.20.0: * A lot of bugfixes and added features. For a complete list take a look at the changelog located at: /usr/share/doc/packages/unbound/Changelog or https://www.nlnetlabs.nl/projects/unbound/download/ Some Noteworthy Changes: * Removed DLV. The DLV has been decommisioned since unbound 1.5.4 and has been advised to stop using it since. The use of dlv options displays a warning. * Remove EDNS lame procedure, do not re-query without EDNS after timeout. * Add DNS over HTTPS * libunbound has been upgraded to major version 8 Security Fixes: * CVE-2023-50387: DNSSEC verification complexity can be exploited to exhaust CPU resources and stall DNS resolvers. [bsc#1219823] * CVE-2023-50868: NSEC3 closest encloser proof can exhaust CPU. [bsc#1219826] * CVE-2022-30698: Novel 'ghost domain names' attack by introducing subdomain delegations. [bsc#1202033] * CVE-2022-30699: Novel 'ghost domain names' attack by updating almost expired delegation information. [bsc#1202031] * CVE-2022-3204: NRDelegation attack leads to uncontrolled resource consumption (Non-Responsive Delegation Attack). [bsc#1203643] Packaging Changes: * Use prefixes instead of sudo in unbound.service * Remove no longer necessary BuildRequires: libfstrm-devel and libprotobuf-c-devel

References: https://www.suse.com/support/update/announcement/2024/suse-su-20241923-1/, https://bugzilla.suse.com/1202031, https://bugzilla.suse.com/1202033, https://bugzilla.suse.com/1203643, https://bugzilla.suse.com/1219823, https://bugzilla.suse.com/1219826, https://www.suse.com/security/cve/CVE-2022-30698, https://www.suse.com/security/cve/CVE-2022-30699, https://www.suse.com/security/cve/CVE-2022-3204, https://www.suse.com/security/cve/CVE-2023-50387, https://www.suse.com/security/cve/CVE-2023-50868