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89
security advisorydenial of servicefedoraFedora 44 pdns-recursor Important Denial of Service Fix 2026-088b60c071
update to latest upstream release to fix CVEs. -------------------------------------------------------------------------------- Fedora Update Notification FEDORA-2026-088b60c071 2026-07-04 00:49:17.194874+00:00 -------------------------------------------------------------------------------- Name : pdns-recursor Product : Fedora 44 Version : 5.4.3 Release : 1.fc44 URL : https://powerdns.com Summary : Modern, advanced and high performance recursing/non authoritative name server Description : PowerDNS Recursor is a non authoritative/recursing DNS server. Use this package if you need a dns cache for your network. -------------------------------------------------------------------------------- Update Information: update to latest upstream release to fix CVEs -------------------------------------------------------------------------------- ChangeLog: * Thu Jun 25 2026 Filipe Rosset - 5.4.3-1 - update to 5.4.3 fixes rhbz#2492868 - a bunch of other bugs were fixed and will be backported to all supported Fedora / EPEL versions * Sun Jun 14 2026 Yaakov Selkowitz - 5.4.2-4 - Drop unused openssl-devel-engine dependency * Fri Jun 12 2026 Yaakov Selkowitz - 5.4.2-3 - Rebuilt for openssl 4.0 -------------------------------------------------------------------------------- References: [ 1 ] Bug #2438157 - CVE-2025-59023 pdns-recursor: crafted delegations or IP fragments can poison cached delegations [fedora-43] https://bugzilla.redhat.com/show_bug.cgi?id=2438157 [ 2 ] Bug #2438176 - CVE-2025-59024 pdns-recursor: crafted delegations or IP fragments can poison cached delegations [fedora-43] https://bugzilla.redhat.com/show_bug.cgi?id=2438176 [ 3 ] Bug #2438180 - CVE-2026-0398 pdns-recursor: crafted zones can lead to increased resource usage and crafted CNAME chains can lead to cache poisoning [fedora-43] https://bugzilla.redhat.com/show_bug.cgi?id=2438180 [ 4 ] Bug #2438184 - CVE-2026-24027 pdns-recursor: craftedzones can lead to increased incoming network traffic [fedora-43] https://bugzilla.redhat.com/show_bug.cgi?id=2438184 [ 5 ] Bug #2460825 - CVE-2026-33600 pdns-recursor: NULL pointer dereference in RPZ transfer [fedora-all] https://bugzilla.redhat.com/show_bug.cgi?id=2460825 [ 6 ] Bug #2460826 - CVE-2026-33261 pdns-recursor: NULL pointer access in aggressive NSEC(3) cache [fedora-all] https://bugzilla.redhat.com/show_bug.cgi?id=2460826 [ 7 ] Bug #2460827 - CVE-2026-33259 pdns-recursor: concurrent modification of RPZ data can lead to denial of service [fedora-all] https://bugzilla.redhat.com/show_bug.cgi?id=2460827 [ 8 ] Bug #2460828 - CVE-2026-33258 pdns-recursor: crafted zones can cause increased resource usage [fedora-all] https://bugzilla.redhat.com/show_bug.cgi?id=2460828 [ 9 ] Bug #2460829 - CVE-2026-33601 pdns-recursor: insufficient validation of ZONEMD record [fedora-all] https://bugzilla.redhat.com/show_bug.cgi?id=2460829 [ 10 ] Bug #2493667 - CVE-2026-33612 pdns-recursor: ZoneToCache can poison the cache [fedora-all] https://bugzilla.redhat.com/show_bug.cgi?id=2493667 [ 11 ] Bug #2493668 - CVE-2026-40012 pdns-recursor: information about ECS zero scoped answers might leak to clients that use a specific ECS [fedora-all] https://bugzilla.redhat.com/show_bug.cgi?id=2493668 [ 12 ] Bug #2493669 - CVE-2026-42388 pdns-recursor: missing input validation for catalog zones [fedora-all] https://bugzilla.redhat.com/show_bug.cgi?id=2493669 [ 13 ] Bug #2493670 - CVE-2026-42387 pdns-recursor: insufficient input validation in ZoneToCache [fedora-all] https://bugzilla.redhat.com/show_bug.cgi?id=2493670 [ 14 ] Bug #2493671 - CVE-2026-42390 pdns-recursor: ZONEMD validation can be bypassed [fedora-all] https://bugzilla.redhat.com/show_bug.cgi?id=2493671 [ 15 ] Bug #2493672 - CVE-2026-52690 pdns-recursor: spoofed answers can mark an authoritative non-EDNS capable [fedora-all] https://bugzilla.redhat.com/show_bug.cgi?id=2493672 -------------------------------------------------------------------------------- This update can be installed with the "dnf" update program. Use su -c 'dnf upgrade --advisory FEDORA-2026-088b60c071' at the command line. For more information, refer to the dnf documentation available at http://dnf.readthedocs.io/en/latest/command_ref.html#upgrade-command-label All packages are signed with the Fedora Project GPG key. More details on the GPG keys used by the Fedora Project can be found at https://fedoraproject.org/keys -------------------------------------------------------------------------------- -- _______________________________________________ package-announce mailing list --
Jul 03, 2026
•Important
Fedora
89
security advisoryfedoraupdateFedora 45 pdns-recursor Significant DNS Revision 2026-ab2ef345f1
Update to latest upstream. -------------------------------------------------------------------------------- Fedora Update Notification FEDORA-2026-db1ef256e0 2026-04-25 01:21:36.171800+00:00 -------------------------------------------------------------------------------- Name : pdns-recursor Product : Fedora 44 Version : 5.4.0 Release : 1.fc44 URL : https://powerdns.com Summary : Modern, advanced and high performance recursing/non authoritative name server Description : PowerDNS Recursor is a non authoritative/recursing DNS server. Use this package if you need a dns cache for your network. -------------------------------------------------------------------------------- Update Information: Update to latest upstream -------------------------------------------------------------------------------- ChangeLog: * Thu Apr 2 2026 Sander Hoentjen - 5.4.0-1 - Update to latest upstream -------------------------------------------------------------------------------- References: [ 1 ] Bug #2454302 - F44FailsToInstall: pdns-recursor https://bugzilla.redhat.com/show_bug.cgi?id=2454302 -------------------------------------------------------------------------------- This update can be installed with the "dnf" update program. Use su -c 'dnf upgrade --advisory FEDORA-2026-db1ef256e0' at the command line. For more information, refer to the dnf documentation available at http://dnf.readthedocs.io/en/latest/command_ref.html#upgrade-command-label All packages are signed with the Fedora Project GPG key. More details on the GPG keys used by the Fedora Project can be found at https://fedoraproject.org/keys -------------------------------------------------------------------------------- -- _______________________________________________ package-announce mailing list --
Apr 25, 2026
•Important
Fedora
89
security advisoryfedorasecurity fixFedora 43 Releases Bind9-Next Important Security Patch for CVE-2025-13878
Update to 9.21.17 (rhbz#2415843) Security Fixes: Fix incorrect length checks for BRID and HHIT records. (CVE-2025-13878) New Features: Add support for Extended DNS Error 9 (Missing DNSKEY).. -------------------------------------------------------------------------------- Fedora Update Notification FEDORA-2026-b31c8d8e83 2026-01-31 17:26:56.329411+00:00 -------------------------------------------------------------------------------- Name : bind9-next Product : Fedora 43 Version : 9.21.17 Release : 1.fc43 URL : https://www.isc.org/bind/ Summary : The Berkeley Internet Name Domain (BIND) DNS (Domain Name System) server Description : BIND (Berkeley Internet Name Domain) is an implementation of the DNS (Domain Name System) protocols. BIND includes a DNS server (named), which resolves host names to IP addresses; a resolver library (routines for applications to use when interfacing with DNS); and tools for verifying that the DNS server is operating properly. -------------------------------------------------------------------------------- Update Information: Update to 9.21.17 (rhbz#2415843) Security Fixes: Fix incorrect length checks for BRID and HHIT records. (CVE-2025-13878) New Features: Add support for Extended DNS Error 9 (Missing DNSKEY). Add support for Extended DNS Error 13 (Cached Error). Add support for Generalized DNS Notifications. Features Changes: Add more information to the rndc recursing output about fetches. Enforce bounds of multiple configuration options. Bug Fixes: Fix inbound IXFR performance regression. Make DNSSEC key rollovers more robust. Fix a catalog zone issue, where member zones could fail to load. Fix slow speed when signing a large delegation zone with NSEC3 opt-out. Reconfiguring an NSEC3 opt-out zone to NSEC caused the zone to be invalid. Fix a possible catalog zone issue during reconfiguration. Fix the charts in the statisticschannel. https://downloads.isc.org/isc/bind9/9.21.17/doc/arm/html/notes.html#notes-for- bind-9-21-17 -------------------------------------------------------------------------------- ChangeLog: * Thu Jan 22 2026 Petr Men\u0161k - 32:9.21.17-1 - Update to 9.21.17 (rhbz#2415843) * Thu Jan 22 2026 Petr Men\u0161k - 32:9.21.16-2 - Fix build for RHEL, disable JEMALLOC there * Thu Jan 22 2026 Petr Men\u0161k - 32:9.21.16-1 - Update to 9.21.16 (rhbz#2415843) * Thu Jan 22 2026 Petr Men\u0161k - 32:9.21.15-2 - Use dns-root-data package for hints source * Thu Jan 22 2026 Petr Men\u0161k - 32:9.21.15-1 - Update to 9.21.15 (rhbz#2415843) * Thu Jan 22 2026 Petr Men\u0161k - 32:9.21.14-3 - Fix running SYSTEMTEST during build -------------------------------------------------------------------------------- References: [ 1 ] Bug #2415843 - bind9-next-9.21.17 is available https://bugzilla.redhat.com/show_bug.cgi?id=2415843 -------------------------------------------------------------------------------- This update can be installed with the "dnf" update program. Use su -c 'dnf upgrade --advisory FEDORA-2026-b31c8d8e83' at the command line. For more information, refer to the dnf documentation available at http://dnf.readthedocs.io/en/latest/command_ref.html#upgrade-command-label All packages are signed with the Fedora Project GPG key. More details on the GPG keys used by the Fedora Project can be found at https://fedoraproject.org/keys -------------------------------------------------------------------------------- . Fedora 43 updates bind9-next for security fixes including Critical CVE-2025-13878 with new features and enhancements.. bind9-next, Fedora 43, security fix, DNS server. . Severity: Important. LinuxSecurity.com Team
Jan 31, 2026
•Important
Fedora
89
security advisoryfedoracriticalFedora 43 BIND 9.18.45 Urgent DoS Vulnerability Patch 2026-567ff6c688
Update to 9.18.44 (rhbz#2431609) Security Fixes: Fix incorrect length checks for BRID and HHIT records. (CVE-2025-13878) Bug Fixes: Allow glue in delegations with QTYPE=ANY.. -------------------------------------------------------------------------------- Fedora Update Notification FEDORA-2026-567ff6c687 2026-01-27 05:36:35.122886+00:00 -------------------------------------------------------------------------------- Name : bind Product : Fedora 43 Version : 9.18.44 Release : 1.fc43 URL : https://www.isc.org/bind/ Summary : The Berkeley Internet Name Domain (BIND) DNS (Domain Name System) server Description : BIND (Berkeley Internet Name Domain) is an implementation of the DNS (Domain Name System) protocols. BIND includes a DNS server (named), which resolves host names to IP addresses; a resolver library (routines for applications to use when interfacing with DNS); and tools for verifying that the DNS server is operating properly. -------------------------------------------------------------------------------- Update Information: Update to 9.18.44 (rhbz#2431609) Security Fixes: Fix incorrect length checks for BRID and HHIT records. (CVE-2025-13878) Bug Fixes: Allow glue in delegations with QTYPE=ANY. Reconfiguring an NSEC3 opt-out zone to NSEC caused the zone to be invalid. https://downloads.isc.org/isc/bind9/9.18.44/doc/arm/html/notes.html#notes-for- bind-9-18-44 -------------------------------------------------------------------------------- ChangeLog: * Thu Jan 22 2026 Petr Men\u0161k - 32:9.18.44-1 - Update to 9.18.44 (rhbz#2431609) -------------------------------------------------------------------------------- References: [ 1 ] Bug #2431609 - bind-9.18.44 is available https://bugzilla.redhat.com/show_bug.cgi?id=2431609 [ 2 ] Bug #2431925 - CVE-2025-13878 bind: bind: Denial of Service via corrupt or malicious record [fedora-43] https://bugzilla.redhat.com/show_bug.cgi?id=2431925 -------------------------------------------------------------------------------- This update can be installed with the "dnf" update program. Use su -c 'dnf upgrade --advisory FEDORA-2026-567ff6c687' at the command line. For more information, refer to the dnf documentation available at http://dnf.readthedocs.io/en/latest/command_ref.html#upgrade-command-label All packages are signed with the Fedora Project GPG key. More details on the GPG keys used by the Fedora Project can be found at https://fedoraproject.org/keys -------------------------------------------------------------------------------- . Critical security advisory for Fedora 43's BIND 9.18.44 addresses denial of service risk from incorrect length checks.. Fedora security advisory,BIND update,DNS server fixes,security risk,Denial of Service. . Severity: Critical. LinuxSecurity.com Team
Jan 27, 2026
•Critical
Fedora
87
security advisorydenial of servicedebianDebian 11 DSA-5504-1 Critical: Bind9 DoS Vulnerabilities Fixed
Several vulnerabilities were discovered in BIND, a DNS server implementation. CVE-2023-3341 . - ------------------------------------------------------------------------- Debian Security Advisory DSA-5504-1
Sep 22, 2023
•Critical
Debian
87
security advisorydenial of servicedebianDebian Security Advisory DSA-5439-1: Critical Fixes for Bind9 DoS Issues
Several vulnerabilities were discovered in BIND, a DNS server implementation. CVE-2023-2828 . - ------------------------------------------------------------------------- Debian Security Advisory DSA-5439-1
Jun 25, 2023
•Critical
Debian
98
security advisorysecurity updateRed HatRed Hat Enterprise Linux 8.2 Update: RHSA-2021:0151-01 Major Dnsmasq Issue
An update for dnsmasq is now available for Red Hat Enterprise Linux 8.2 Extended Update Support. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score,. -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 ==================================================================== Red Hat Security Advisory Synopsis: Important: dnsmasq security update Advisory ID: RHSA-2021:0151-01 Product: Red Hat Enterprise Linux Advisory URL: https://access.redhat.com/errata/RHSA-2021:0151 Issue date: 2021-01-19 CVE Names: CVE-2020-25681 CVE-2020-25682 CVE-2020-25683 CVE-2020-25684 CVE-2020-25685 CVE-2020-25686 CVE-2020-25687 ==================================================================== 1. Summary: An update for dnsmasq is now available for Red Hat Enterprise Linux 8.2 Extended Update Support. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section. 2. Relevant releases/architectures: Red Hat Enterprise Linux AppStream EUS (v. 8.2) - aarch64, ppc64le, s390x, x86_64 3. Description: The dnsmasq packages contain Dnsmasq, a lightweight DNS (Domain Name Server) forwarder and DHCP (Dynamic Host Configuration Protocol) server. Security Fix(es): * dnsmasq: heap-based buffer overflow in sort_rrset() when DNSSEC is enabled (CVE-2020-25681) * dnsmasq: buffer overflow in extract_name() due to missing length check when DNSSEC is enabled (CVE-2020-25682) * dnsmasq: heap-based buffer overflow with large memcpy in get_rdata() when DNSSEC is enabled (CVE-2020-25683) * dnsmasq: loose address/port check in reply_query() makes forging replies easier for an off-path attacker (CVE-2020-25684) * dnsmasq: loose query name check inreply_query() makes forging replies easier for an off-path attacker (CVE-2020-25685) * dnsmasq: multiple queries forwarded for the same name makes forging replies easier for an off-path attacker (CVE-2020-25686) * dnsmasq: heap-based buffer overflow with large memcpy in sort_rrset() when DNSSEC is enabled (CVE-2020-25687) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section. 4. Solution: For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 5. Bugs fixed (https://bugzilla.redhat.com/): 1881875 - CVE-2020-25681 dnsmasq: heap-based buffer overflow in sort_rrset() when DNSSEC is enabled 1882014 - CVE-2020-25682 dnsmasq: buffer overflow in extract_name() due to missing length check when DNSSEC is enabled 1882018 - CVE-2020-25683 dnsmasq: heap-based buffer overflow with large memcpy in get_rdata() when DNSSEC is enabled 1889686 - CVE-2020-25684 dnsmasq: loose address/port check in reply_query() makes forging replies easier for an off-path attacker 1889688 - CVE-2020-25685 dnsmasq: loose query name check in reply_query() makes forging replies easier for an off-path attacker 1890125 - CVE-2020-25686 dnsmasq: multiple queries forwarded for the same name makes forging replies easier for an off-path attacker 1891568 - CVE-2020-25687 dnsmasq: heap-based buffer overflow with large memcpy in sort_rrset() when DNSSEC is enabled 6. Package List: Red Hat Enterprise Linux AppStream EUS (v.8.2): Source: dnsmasq-2.79-11.el8_2.2.src.rpm aarch64: dnsmasq-2.79-11.el8_2.2.aarch64.rpm dnsmasq-debuginfo-2.79-11.el8_2.2.aarch64.rpm dnsmasq-debugsource-2.79-11.el8_2.2.aarch64.rpm dnsmasq-utils-2.79-11.el8_2.2.aarch64.rpm dnsmasq-utils-debuginfo-2.79-11.el8_2.2.aarch64.rpm ppc64le: dnsmasq-2.79-11.el8_2.2.ppc64le.rpm dnsmasq-debuginfo-2.79-11.el8_2.2.ppc64le.rpm dnsmasq-debugsource-2.79-11.el8_2.2.ppc64le.rpm dnsmasq-utils-2.79-11.el8_2.2.ppc64le.rpm dnsmasq-utils-debuginfo-2.79-11.el8_2.2.ppc64le.rpm s390x: dnsmasq-2.79-11.el8_2.2.s390x.rpm dnsmasq-debuginfo-2.79-11.el8_2.2.s390x.rpm dnsmasq-debugsource-2.79-11.el8_2.2.s390x.rpm dnsmasq-utils-2.79-11.el8_2.2.s390x.rpm dnsmasq-utils-debuginfo-2.79-11.el8_2.2.s390x.rpm x86_64: dnsmasq-2.79-11.el8_2.2.x86_64.rpm dnsmasq-debuginfo-2.79-11.el8_2.2.x86_64.rpm dnsmasq-debugsource-2.79-11.el8_2.2.x86_64.rpm dnsmasq-utils-2.79-11.el8_2.2.x86_64.rpm dnsmasq-utils-debuginfo-2.79-11.el8_2.2.x86_64.rpm These packages are GPG signed by Red Hat for security. Our key and details on how to verify the signature are available from https://access.redhat.com/security/team/key/ 7. References: https://access.redhat.com/security/cve/CVE-2020-25681 https://access.redhat.com/security/cve/CVE-2020-25682 https://access.redhat.com/security/cve/CVE-2020-25683 https://access.redhat.com/security/cve/CVE-2020-25684 https://access.redhat.com/security/cve/CVE-2020-25685 https://access.redhat.com/security/cve/CVE-2020-25686 https://access.redhat.com/security/cve/CVE-2020-25687 https://access.redhat.com/security/updates/classification/#important https://access.redhat.com/security/vulnerabilities/RHSB-2021-001 8. Contact: The Red Hat security contact is . More contact details at https://access.redhat.com/security/team/contact/ Copyright 2021 Red Hat, Inc. -----BEGIN PGP SIGNATURE----- Version: GnuPGv1 iQIVAwUBYAbgy9zjgjWX9erEAQhsJg/7BiUPmYio6D87XkN9fcWf2VYynkHDOI1k 43jB7EnfLvUh/UrJSi3n3YH8a0eibMke1heXDUIuTBbv0BX5qi7QuOzmqD8bEsMq esRcEyG2BGjVZ9eC5/Enm+L2j/lOUH8EEFH3O2tqEa4/U8oD3HB5ejofQo79uLwE mGGIIc8pBzQDqGb/7ROt418VCwed5716OVmn5PV/A7zpbXf2Wg8AYBkuzm3aE/VS +Jd7JIpFXaJwbszRZ2JJwXs4sKrxM49FTMJ0TjYZgwo6waLML9Fv43f87Tz9n4Wu B56lH8OQZmJCH5tbbsrzCWa25cvf057UfBhQqj5qqsPPUL/I/oh4dEGQs58vUz+Y bnuhDQqhjfa6FbBLyAMAHJf5l6X62ZnkIIDc3xPPsiTHdtuggOLZxQiXvm9QkKuI LRReXUJVeLs2sq2SxXYHb9GqcCOV4M5K9+NpS4w/ICikKzd2RkCfVABymz2sVm7K tGW3OsTmkhWpyAczYqp8zXm9abK+kwwQqkuQeb3JBQ+WInwSab63sT/nggDH/oWM IqMb26QypNNr2cpZ/DB2HooGehSeLXNmAPrbeuIKowuKrCL0xRPTb9db2yXqttTS WUNnKM3h66Ju+Gzzk+JhtoJl3lomGIgiT1c+QXvPC9B6lmFojx8lZKsxsQ1Qkudd rwOB2/q5hRY=vAYb -----END PGP SIGNATURE----- -- RHSA-announce mailing list
Jan 19, 2021
•Important
Red Hat
89
security advisoryfedoraupdate informationFedora 33: Update for pdns-recursor 4.3.5 Security Advisory
- Update to 4.3.5 Release notes: https://docs.powerdns.com/recursor/security-advisories/powerdns-advisory-2020-07.html Security Advisory: https://docs.powerdns.com/recursor/security-advisories/powerdns-advisory-2020-07.html. --------------------------------------------------------------------------------Fedora Update Notification FEDORA-2020-51ca2615fe 2020-10-23 22:01:02.263670 --------------------------------------------------------------------------------Name : pdns-recursor Product : Fedora 33 Version : 4.3.5 Release : 1.fc33 URL : https://www.powerdns.com/ Summary : Modern, advanced and high performance recursing/non authoritative name server Description : PowerDNS Recursor is a non authoritative/recursing DNS server. Use this package if you need a dns cache for your network. --------------------------------------------------------------------------------Update Information: - Update to 4.3.5 Release notes: https://docs.powerdns.com/recursor/security-advisories/powerdns-advisory-2020-07.html Security Advisory: https://docs.powerdns.com/recursor/security-advisories/powerdns-advisory-2020-07.html --------------------------------------------------------------------------------ChangeLog: * Mon Oct 19 2020 Morten Stevens - 4.3.5-1 - Update to 4.3.5 * Thu Sep 24 2020 Adrian Reber - 4.3.4-2 - Rebuilt for protobuf 3.13 --------------------------------------------------------------------------------References: [ 1 ] Bug #1887753 - pdns-recursor-4.3.5 is available https://bugzilla.redhat.com/show_bug.cgi?id=1887753 --------------------------------------------------------------------------------This update can be installed with the "dnf" update program. Use su -c 'dnf upgrade --advisory FEDORA-2020-51ca2615fe' at the command line. For more information, refer to the dnf documentation available at https://dnf.readthedocs.io/en/latest/command_ref.html All packages are signed with the Fedora Project GPG key. More details on the GPG keysused by the Fedora Project can be found at --------------------------------------------------------------------------------_______________________________________________ package-announce mailing list --
Oct 23, 2020
•Important
Fedora
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