Security update for dnsdist SUSE Patch security@suse.de SUSE Security Team SUSE-SU-2023:2777-1 Final 1 1 2023-07-04T08:39:57Z current 2023-07-04T08:39:57Z 2023-07-04T08:39:57Z cve-database/bin/generate-cvrf.pl 2017-02-24T01:00:00Z Security update for dnsdist This update for dnsdist fixes the following issues: - Implements package 'dnsdist' with version 1.8.0 in SLE15. (jsc#PED-3402) - Downstream DNS resolver configuration should be chosen by the admin - Security fix: fixes a possible record smugging with a crafted DNS query with trailing data (CVE-2018-14663, bsc#1114511) - Security fix: There is an issue that can lead to a denial of service on 32-bit if a backend sends crafted answers. (CVE-2016-7069, bsc#1054799) - Security fix: Alteration of dnsdist's ACL if the API is enabled, writable and an authenticated user is tricked into visiting a crafted website. (CVE-2017-7557, bsc#1054799) - SNMP support, exporting statistics and sending traps - Preventing the packet cache from ageing responses when deployed in - Various DNSCrypt-related fixes and improvements, including automatic key rotation The CVRF data is provided by SUSE under the Creative Commons License 4.0 with Attribution (CC-BY-4.0). SUSE-2023-2777,SUSE-SLE-Product-SLES-15-SP1-LTSS-2023-2777,SUSE-SLE-Product-SLES-15-SP2-LTSS-2023-2777,SUSE-SLE-Product-SLES-15-SP3-LTSS-2023-2777,SUSE-SLE-Product-SLES_SAP-15-SP1-2023-2777,SUSE-SLE-Product-SLES_SAP-15-SP2-2023-2777 Copyright SUSE LLC under the Creative Commons License 4.0 with Attribution (CC-BY-4.0) https://www.suse.com/support/update/announcement/2023/suse-su-20232777-1/ Link for SUSE-SU-2023:2777-1 https://lists.suse.com/pipermail/sle-updates/2023-July/030190.html E-Mail link for SUSE-SU-2023:2777-1 https://www.suse.com/support/security/rating/ SUSE Security Ratings https://bugzilla.suse.com/1054799 SUSE Bug 1054799 https://bugzilla.suse.com/1054802 SUSE Bug 1054802 https://bugzilla.suse.com/1114511 SUSE Bug 1114511 https://www.suse.com/security/cve/CVE-2016-7069/ SUSE CVE CVE-2016-7069 page https://www.suse.com/security/cve/CVE-2017-7557/ SUSE CVE CVE-2017-7557 page https://www.suse.com/security/cve/CVE-2018-14663/ SUSE CVE CVE-2018-14663 page SUSE Linux Enterprise Server 15 SP1-LTSS SUSE Linux Enterprise Server 15 SP2-LTSS SUSE Linux Enterprise Server 15 SP3-LTSS SUSE Linux Enterprise Server for SAP Applications 15 SP1 SUSE Linux Enterprise Server for SAP Applications 15 SP2 dnsdist-1.8.0-150100.3.5.1 dnsdist-1.8.0-150100.3.5.1 as a component of SUSE Linux Enterprise Server 15 SP1-LTSS dnsdist-1.8.0-150100.3.5.1 as a component of SUSE Linux Enterprise Server 15 SP2-LTSS dnsdist-1.8.0-150100.3.5.1 as a component of SUSE Linux Enterprise Server 15 SP3-LTSS dnsdist-1.8.0-150100.3.5.1 as a component of SUSE Linux Enterprise Server for SAP Applications 15 SP1 dnsdist-1.8.0-150100.3.5.1 as a component of SUSE Linux Enterprise Server for SAP Applications 15 SP2 An issue has been found in dnsdist before 1.2.0 in the way EDNS0 OPT records are handled when parsing responses from a backend. When dnsdist is configured to add EDNS Client Subnet to a query, the response may contain an EDNS0 OPT record that has to be removed before forwarding the response to the initial client. On a 32-bit system, the pointer arithmetic used when parsing the received response to remove that record might trigger an undefined behavior leading to a crash. CVE-2016-7069 SUSE Linux Enterprise Server 15 SP1-LTSS:dnsdist-1.8.0-150100.3.5.1 SUSE Linux Enterprise Server 15 SP2-LTSS:dnsdist-1.8.0-150100.3.5.1 SUSE Linux Enterprise Server 15 SP3-LTSS:dnsdist-1.8.0-150100.3.5.1 SUSE Linux Enterprise Server for SAP Applications 15 SP1:dnsdist-1.8.0-150100.3.5.1 SUSE Linux Enterprise Server for SAP Applications 15 SP2:dnsdist-1.8.0-150100.3.5.1 important To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch". https://www.suse.com/support/update/announcement/2023/suse-su-20232777-1/ https://www.suse.com/security/cve/CVE-2016-7069.html CVE-2016-7069 https://bugzilla.suse.com/1054799 SUSE Bug 1054799 dnsdist version 1.1.0 is vulnerable to a flaw in authentication mechanism for REST API potentially allowing CSRF attack. CVE-2017-7557 SUSE Linux Enterprise Server 15 SP1-LTSS:dnsdist-1.8.0-150100.3.5.1 SUSE Linux Enterprise Server 15 SP2-LTSS:dnsdist-1.8.0-150100.3.5.1 SUSE Linux Enterprise Server 15 SP3-LTSS:dnsdist-1.8.0-150100.3.5.1 SUSE Linux Enterprise Server for SAP Applications 15 SP1:dnsdist-1.8.0-150100.3.5.1 SUSE Linux Enterprise Server for SAP Applications 15 SP2:dnsdist-1.8.0-150100.3.5.1 important To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch". https://www.suse.com/support/update/announcement/2023/suse-su-20232777-1/ https://www.suse.com/security/cve/CVE-2017-7557.html CVE-2017-7557 https://bugzilla.suse.com/1054802 SUSE Bug 1054802 An issue has been found in PowerDNS DNSDist before 1.3.3 allowing a remote attacker to craft a DNS query with trailing data such that the addition of a record by dnsdist, for example an OPT record when adding EDNS Client Subnet, might result in the trailing data being smuggled to the backend as a valid record while not seen by dnsdist. This is an issue when dnsdist is deployed as a DNS Firewall and used to filter some records that should not be received by the backend. This issue occurs only when either the 'useClientSubnet' or the experimental 'addXPF' parameters are used when declaring a new backend. CVE-2018-14663 SUSE Linux Enterprise Server 15 SP1-LTSS:dnsdist-1.8.0-150100.3.5.1 SUSE Linux Enterprise Server 15 SP2-LTSS:dnsdist-1.8.0-150100.3.5.1 SUSE Linux Enterprise Server 15 SP3-LTSS:dnsdist-1.8.0-150100.3.5.1 SUSE Linux Enterprise Server for SAP Applications 15 SP1:dnsdist-1.8.0-150100.3.5.1 SUSE Linux Enterprise Server for SAP Applications 15 SP2:dnsdist-1.8.0-150100.3.5.1 moderate To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch". https://www.suse.com/support/update/announcement/2023/suse-su-20232777-1/ https://www.suse.com/security/cve/CVE-2018-14663.html CVE-2018-14663 https://bugzilla.suse.com/1114511 SUSE Bug 1114511