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# Security update for unbound Announcement ID: SUSE-SU-2024:1923-1 Rating: important References: * bsc#1202031 * bsc#1202033 * bsc#1203643 * bsc#1219823 * bsc#1219826 * jsc#PED-8333 Cross-References: * CVE-2022-30698 * CVE-2022-30699 * CVE-2022-3204 * CVE-2023-50387 * CVE-2023-50868 CVSS scores: * CVE-2022-30698 ( SUSE ): 5.6 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L * CVE-2022-30698 ( NVD ): 6.5 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N * CVE-2022-30699 ( SUSE ): 5.6 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L * CVE-2022-30699 ( NVD ): 6.5 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N * CVE-2022-3204 ( SUSE ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H * CVE-2022-3204 ( NVD ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H * CVE-2023-50387 ( SUSE ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H * CVE-2023-50387 ( NVD ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H * CVE-2023-50868 ( SUSE ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Affected Products: * Basesystem Module 15-SP6 * openSUSE Leap 15.6 * SUSE Linux Enterprise Desktop 15 SP6 * SUSE Linux Enterprise Real Time 15 SP6 * SUSE Linux Enterprise Server 15 SP6 * SUSE Linux Enterprise Server for SAP Applications 15 SP6 * SUSE Package Hub 15 15-SP6 An update that solves five vulnerabilities and contains one feature can now be installed. ## Description: 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 ## Patch Instructions: To install this SUSE update use the SUSE recommended installation methods like YaST online_update or "zypper patch". Alternatively you can run the command listed for your product: * openSUSE Leap 15.6 zypper in -t patch SUSE-2024-1923=1 openSUSE-SLE-15.6-2024-1923=1 * Basesystem Module 15-SP6 zypper in -t patch SUSE-SLE-Module-Basesystem-15-SP6-2024-1923=1 * SUSE Package Hub 15 15-SP6 zypper in -t patch SUSE-SLE-Module-Packagehub-Subpackages-15-SP6-2024-1923=1 ## Package List: * openSUSE Leap 15.6 (aarch64 ppc64le s390x x86_64 i586) * libunbound-devel-mini-debugsource-1.20.0-150600.23.3.1 * unbound-1.20.0-150600.23.3.1 * libunbound8-1.20.0-150600.23.3.1 * libunbound-devel-mini-debuginfo-1.20.0-150600.23.3.1 * libunbound8-debuginfo-1.20.0-150600.23.3.1 * unbound-anchor-debuginfo-1.20.0-150600.23.3.1 * unbound-debugsource-1.20.0-150600.23.3.1 * unbound-debuginfo-1.20.0-150600.23.3.1 * unbound-devel-1.20.0-150600.23.3.1 * unbound-python-1.20.0-150600.23.3.1 * unbound-anchor-1.20.0-150600.23.3.1 * unbound-python-debuginfo-1.20.0-150600.23.3.1 * libunbound-devel-mini-1.20.0-150600.23.3.1 * openSUSE Leap 15.6 (noarch) * unbound-munin-1.20.0-150600.23.3.1 * Basesystem Module 15-SP6 (aarch64 ppc64le s390x x86_64) * unbound-debugsource-1.20.0-150600.23.3.1 * libunbound8-1.20.0-150600.23.3.1 * unbound-anchor-debuginfo-1.20.0-150600.23.3.1 * libunbound8-debuginfo-1.20.0-150600.23.3.1 * unbound-devel-1.20.0-150600.23.3.1 * unbound-debuginfo-1.20.0-150600.23.3.1 * unbound-anchor-1.20.0-150600.23.3.1 * SUSE Package Hub 15 15-SP6 (aarch64 ppc64le s390x x86_64) * unbound-1.20.0-150600.23.3.1 * unbound-debugsource-1.20.0-150600.23.3.1 * unbound-python-1.20.0-150600.23.3.1 * unbound-debuginfo-1.20.0-150600.23.3.1 * unbound-python-debuginfo-1.20.0-150600.23.3.1 ## References: * https://www.suse.com/security/cve/CVE-2022-30698.html * https://www.suse.com/security/cve/CVE-2022-30699.html * https://www.suse.com/security/cve/CVE-2022-3204.html * https://www.suse.com/security/cve/CVE-2023-50387.html * https://www.suse.com/security/cve/CVE-2023-50868.html * https://bugzilla.suse.com/show_bug.cgi?id=1202031 * https://bugzilla.suse.com/show_bug.cgi?id=1202033 * https://bugzilla.suse.com/show_bug.cgi?id=1203643 * https://bugzilla.suse.com/show_bug.cgi?id=1219823 * https://bugzilla.suse.com/show_bug.cgi?id=1219826 * https://jira.suse.com/browse/PED-8333