The DNS message parsing code in `named` includes a section whose computational complexity is overly high. It does not cause problems for typical DNS traffic, but crafted queries and responses may cause excessive CPU load on the affected `named` instance by exploiting this flaw. This issue affects both authoritative servers and recursive resolvers. This issue affects BIND 9 versions 9.0.0 through 9.16.45, 9.18.0 through 9.18.21, 9.19.0 through 9.19.19, 9.9.3-S1 through 9.11.37-S1, 9.16.8-S1 through 9.16.45-S1, and 9.18.11-S1 through 9.18.21-S1.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Alma_linux | — | Upgrade bind9.16-develUpgrade bind9.16-libsUpgrade bind-docUpgrade bind-pkcs11-develUpgrade bind9.16-docUpgrade bind9.16-utilsUpgrade bind-sdbUpgrade bind-licenseUpgrade bind-dnssec-utilsUpgrade bindUpgrade bind-dyndb-ldapUpgrade python3-bind9.16Upgrade bind-export-develUpgrade bind-export-libsUpgrade bind-develUpgrade python3-bindUpgrade bind9.16-chrootUpgrade bind-libs-liteUpgrade bind-chrootUpgrade bind-utilsUpgrade bind-libsUpgrade bind-pkcs11-libsUpgrade bind9.16-licenseUpgrade bind9.16Upgrade bind-lite-develUpgrade bind-pkcs11Upgrade bind-sdb-chrootUpgrade bind9.16-dnssec-utilsUpgrade bind-pkcs11-utilsUpgrade bind-dnssec-doc | Apr 15, 2024 | Feb 13, 2024 |
| Alpine Linux | — | Upgrade bind | Mar 26, 2024 | Feb 13, 2024 |
| Amazon Linux Ami 2 | — | Upgrade bind-libsUpgrade bind-pkcs11-develUpgrade bind-debuginfoUpgrade bind-develUpgrade bind-pkcs11Upgrade bind-licenseUpgrade bindUpgrade bind-lite-develUpgrade bind-pkcs11-libsUpgrade bind-export-libsUpgrade bind-libs-liteUpgrade bind-utilsUpgrade bind-sdb-chrootUpgrade bind-pkcs11-utilsUpgrade bind-export-develUpgrade bind-chrootUpgrade bind-sdb | Aug 21, 2024 | Feb 13, 2024 |
| Amazon_linux_2023 | — | Upgrade bind-chrootUpgrade bind-pkcs11Upgrade bind-debuginfoUpgrade bind-develUpgrade bind-debugsourceUpgrade bind-dlz-filesystem-debuginfoUpgrade bind-dlz-sqlite3Upgrade bind-libsUpgrade bind-dnssec-docUpgrade bind-pkcs11-utilsUpgrade bind-dlz-mysqlUpgrade bind-dlz-filesystemUpgrade bindUpgrade bind-utils-debuginfoUpgrade bind-libs-debuginfoUpgrade bind-pkcs11-debuginfoUpgrade bind-licenseUpgrade bind-dnssec-utilsUpgrade bind-dlz-sqlite3-debuginfoUpgrade bind-docUpgrade bind-dlz-ldapUpgrade bind-pkcs11-utils-debuginfoUpgrade bind-dlz-ldap-debuginfoUpgrade bind-pkcs11-libsUpgrade bind-pkcs11-libs-debuginfoUpgrade python3-bindUpgrade bind-pkcs11-develUpgrade bind-utilsUpgrade bind-dnssec-utils-debuginfoUpgrade bind-dlz-mysql-debuginfo | Feb 17, 2025 | Feb 13, 2024 |
| Centos_linux | — | Upgrade dhcpUpgrade bind-utilsUpgrade bind-chrootUpgrade bind-pkcs11-develUpgrade bind-lite-develUpgrade bind-export-libsUpgrade bind-pkcs11-libsUpgrade bind-dyndb-ldapUpgrade dhcp-libsUpgrade bind-pkcs11Upgrade dhclientUpgrade dhcp-commonUpgrade bind-libs-liteUpgrade dhcp-debuginfoUpgrade bind-licenseUpgrade dhcp-develUpgrade bind-sdbUpgrade bind-develUpgrade bindUpgrade bind-sdb-chrootUpgrade bind-export-develUpgrade bind-pkcs11-utilsUpgrade bind-libsUpgrade bind-dyndb-ldap-debuginfoUpgrade bind-debuginfo | Jun 11, 2024 | Feb 13, 2024 |
| Debian | — | Upgrade bind9 | Feb 23, 2024 | Feb 13, 2024 |
| Dell Powerstore Dsa2024462 | — | Upgrade Dell PowerStoreOS to the latest version | Oct 23, 2025 | Nov 20, 2024 |
| Dell Powerstore Dsa2024497 | — | Upgrade Dell PowerStoreOS to the latest version | Oct 23, 2025 | Dec 19, 2024 |
| Dell Powerstore Dsa2025050 | — | Upgrade Dell PowerStoreOS to the latest version | Oct 23, 2025 | Jan 28, 2025 |
| Dns Bind | — | Upgrade ISC BIND to latest version | Feb 15, 2024 | Feb 15, 2024 |
| F5 Big Ip | — | Update F5 BIG-IP to the latest version | Jun 17, 2026 | Mar 23, 2024 |
| Huawei Euleros 2_0_sp11 | — | Upgrade bind-chrootUpgrade bind-utilsUpgrade bind-dnssec-utilsUpgrade bind-pkcs11-libsUpgrade bind-dnssec-docUpgrade python3-bindUpgrade bind-libsUpgrade bind-pkcs11-utilsUpgrade bindUpgrade bind-pkcs11Upgrade bind-license | Jun 3, 2024 | Feb 13, 2024 |
| Huawei Euleros 2_0_sp12 | — | Upgrade python3-bindUpgrade bind-libsUpgrade bind-dnssec-utilsUpgrade bind-licenseUpgrade bind-chrootUpgrade bind-pkcs11Upgrade bind-utilsUpgrade bind-dnssec-docUpgrade bindUpgrade bind-pkcs11-utilsUpgrade bind-pkcs11-libs | Jul 1, 2024 | Feb 13, 2024 |
| Ibm Aix | — | Apply the fix or workaround for bind_advisory26 | Jun 5, 2024 | Feb 13, 2024 |
| Nutanix Ahv | — | Upgrade Nutanix AHV to the latest version | Jun 5, 2026 | Oct 8, 2024 |
| Oracle_linux | — | Upgrade dhcp-clientUpgrade bind-docUpgrade bind-utilsUpgrade bind-export-libsUpgrade bind9.16-utilsUpgrade bind-pkcs11-develUpgrade bind-dnssec-utilsUpgrade bind-pkcs11-libsUpgrade bind9.16-develUpgrade dhcpUpgrade bind9.16-libsUpgrade dhcp-serverUpgrade python3-bind9.16Upgrade bind9.16-docUpgrade dhcp-relayUpgrade python3-bindUpgrade bind-dyndb-ldapUpgrade bind9.16-licenseUpgrade bind-pkcs11Upgrade bind-dnssec-docUpgrade dhcp-libsUpgrade bind-chrootUpgrade bind-libsUpgrade bind9.16-chrootUpgrade dhcp-commonUpgrade bind9.16-dnssec-utilsUpgrade bind-sdbUpgrade bindUpgrade bind-develUpgrade bind-pkcs11-utilsUpgrade bind-libs-liteUpgrade bind-licenseUpgrade dhcp-develUpgrade dhclientUpgrade bind-sdb-chrootUpgrade bind-lite-develUpgrade bind-export-develUpgrade bind9.16 | Apr 12, 2024 | Feb 13, 2024 |
| Redhat_linux | — | Upgrade bind-sdb-chrootUpgrade bind-utilsUpgrade bind9.16Upgrade bind9.16-dnssec-utils-debuginfoUpgrade bind-libs-debuginfoUpgrade bind9.16-libs-debuginfoUpgrade dhcp-libsUpgrade dhcpUpgrade python3-bindUpgrade bind-export-libs-debuginfoUpgrade bind-pkcs11-develUpgrade bind9.16-debuginfoUpgrade dhcp-libs-debuginfoUpgrade dhcp-relayUpgrade dhcp-debugsourceUpgrade bind9.16-develUpgrade bind9.16-utils-debuginfoUpgrade bind-pkcs11-utilsUpgrade bind9.16-debugsourceUpgrade bind-libs-liteUpgrade dhcp-commonUpgrade bind9.16-licenseUpgrade dhcp-serverUpgrade dhclientUpgrade bind9.16-chrootUpgrade bind-pkcs11Upgrade bind-pkcs11-debuginfoUpgrade bind-pkcs11-libsUpgrade bind-libsUpgrade bind-sdb-debuginfoUpgrade bind-licenseUpgrade bind-develUpgrade dhcp-server-debuginfoUpgrade dhcp-develUpgrade bind-dyndb-ldap-debuginfoUpgrade bind-dnssec-utils-debuginfoUpgrade bind-libs-lite-debuginfoUpgrade bind9.16-docUpgrade bind9.16-libsUpgrade dhcp-debuginfoUpgrade bind-utils-debuginfoUpgrade bind-lite-develUpgrade bind-pkcs11-utils-debuginfoUpgrade bind-debugsourceUpgrade bindUpgrade bind-debuginfoUpgrade bind-dnssec-docUpgrade bind-pkcs11-libs-debuginfoUpgrade dhcp-relay-debuginfoUpgrade bind-export-develUpgrade bind9.16-utilsUpgrade bind-docUpgrade dhcp-client-debuginfoUpgrade dhcp-clientUpgrade bind-dyndb-ldap-debugsourceUpgrade bind-chrootUpgrade bind-export-libsUpgrade python3-bind9.16Upgrade bind9.16-dnssec-utilsUpgrade bind-dyndb-ldapUpgrade bind-sdbUpgrade bind-dnssec-utils | Apr 3, 2024 | Feb 13, 2024 |
| Rocky_linux | — | Upgrade bind-export-libs-debuginfoUpgrade bind-sdb-debuginfoUpgrade bind-debugsourceUpgrade bind9.16-chrootUpgrade bind9.16-utilsUpgrade bind-dnssec-utils-debuginfoUpgrade bind-pkcs11Upgrade bind-dyndb-ldap-debugsourceUpgrade bind9.16-utils-debuginfoUpgrade bind-debuginfoUpgrade bind-export-develUpgrade bind9.16Upgrade bind-utils-debuginfoUpgrade bindUpgrade bind-libs-debuginfoUpgrade bind-develUpgrade dhcp-libsUpgrade bind-libsUpgrade bind9.16-dnssec-utilsUpgrade bind-pkcs11-libs-debuginfoUpgrade bind9.16-libs-debuginfoUpgrade dhcp-debuginfoUpgrade dhcp-client-debuginfoUpgrade dhcp-debugsourceUpgrade bind-pkcs11-develUpgrade bind-sdbUpgrade bind-pkcs11-utils-debuginfoUpgrade bind9.16-debuginfoUpgrade bind-sdb-chrootUpgrade bind-lite-develUpgrade bind-dnssec-utilsUpgrade bind9.16-debugsourceUpgrade bind-utilsUpgrade bind-pkcs11-utilsUpgrade bind9.16-dnssec-utils-debuginfoUpgrade bind9.16-develUpgrade dhcp-clientUpgrade bind-pkcs11-libsUpgrade dhcp-server-debuginfoUpgrade dhcp-libs-debuginfoUpgrade bind-dyndb-ldap-debuginfoUpgrade bind-pkcs11-debuginfoUpgrade bind-chrootUpgrade bind-dyndb-ldapUpgrade bind9.16-libsUpgrade dhcp-relay-debuginfoUpgrade dhcp-relayUpgrade bind-libs-lite-debuginfoUpgrade bind-libs-liteUpgrade bind-export-libsUpgrade dhcp-server | May 8, 2024 | Feb 13, 2024 |
| Suse | — | Upgrade libuv-develUpgrade libirs161Upgrade libisccc161Upgrade libirs1601Upgrade bind-docUpgrade libuv1Upgrade libisc1606Upgrade libbind9-1600Upgrade libdns1605Upgrade liblwres161Upgrade bindUpgrade libirs-develUpgrade bind-utilsUpgrade libisccfg163Upgrade bind-chrootenvUpgrade libisccfg1600Upgrade libbind9-161Upgrade python-bindUpgrade libisc1107Upgrade libisccc1600Upgrade libns1604Upgrade libdns1110Upgrade bind-develUpgrade python3-bindUpgrade libisc1107-32bit | Feb 22, 2024 | Feb 13, 2024 |
| Ubuntu | — | Upgrade bind9 | Feb 14, 2024 | Feb 13, 2024 |
| Vmware Photon_os | — | Use 'tdnf update' to upgrade all packages to the latest version. | Jan 20, 2025 | Feb 13, 2024 |
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