SUSE: 2024:1991-2 important: unbound Security Advisory Updates
Summary
## 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: * SUSE Linux Enterprise Micro 5.5 zypper in -t patch SUSE-SLE-Micro-5.5-2024-1991=1 ## Package List: * SUSE Linux Enterprise Micro 5.5 (aarch64 ppc64le s390x x86_64) * unbound-debugsource-1.20.0-150100.10.13.1 * unbound-anchor-1.20.0-150100.10.13.1 * libunbound8-1.20.0-150100.10.13.1 * unbound-debuginfo-1.20.0-150100.10.13.1 * libunbound8-debuginfo-1.20.0-150100.10.13.1
References
* bsc#1202031
* bsc#1202033
* bsc#1203643
* bsc#1219823
* bsc#1219826
* jsc#PED-8333
Cross-
* 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:
* SUSE Linux Enterprise Micro 5.5
An update that solves five vulnerabilities and contains one feature can now be
installed.
##
* 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