A malicious actor who intentionally exploits this lack of effective limitation on the number of fetches performed when processing referrals can, through the use of specially crafted referrals, cause a recursing server to issue a very large number of fetches in an attempt to process the referral. This has at least two potential effects: The performance of the recursing server can potentially be degraded by the additional work required to perform these fetches, and The attacker can exploit this behavior to use the recursing server as a reflector in a reflection attack with a high amplification factor.
CVSS Details
- CVSS 3.1 Base Score: 8.6
- CVSS 3.1 Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Alpine Linux | — | Upgrade bind | Aug 22, 2024 | May 19, 2020 |
| Amazon Linux Ami 2 | — | Upgrade bind-pkcs11-utilsUpgrade bind-sdb-chrootUpgrade bind-utilsUpgrade bind-pkcs11-libsUpgrade bind-pkcs11-develUpgrade bind-develUpgrade bind-pkcs11Upgrade bind-libs-liteUpgrade bind-libsUpgrade bind-debuginfoUpgrade bind-sdbUpgrade bind-export-libsUpgrade bindUpgrade bind-lite-develUpgrade bind-chrootUpgrade bind-export-develUpgrade bind-license | May 22, 2020 | May 19, 2020 |
| Amazon_linux | — | Upgrade bind | Jun 4, 2020 | May 19, 2020 |
| Arch Linux | — | Upgrade to the latest version of Arch Linux | Jul 11, 2025 | May 19, 2020 |
| Centos_linux | — | Upgrade bind-pkcs11-debuginfoUpgrade bind-libs-lite-debuginfoUpgrade bind-develUpgrade bind-export-libsUpgrade bind-sdbUpgrade bind-utilsUpgrade bind-debuginfoUpgrade python3-bindUpgrade bind-pkcs11-utilsUpgrade bind-lite-develUpgrade bind-pkcs11-libsUpgrade bind-chrootUpgrade bind-libs-liteUpgrade bind-libsUpgrade bind-libs-debuginfoUpgrade bind-debugsourceUpgrade bindUpgrade bind-pkcs11-utils-debuginfoUpgrade bind-export-libs-debuginfoUpgrade bind-pkcs11-develUpgrade bind-pkcs11Upgrade bind-export-develUpgrade bind-utils-debuginfoUpgrade bind-licenseUpgrade bind-sdb-chrootUpgrade bind-pkcs11-libs-debuginfoUpgrade bind-sdb-debuginfo | May 29, 2020 | May 19, 2020 |
| Debian | — | Upgrade bind9 | May 21, 2020 | May 19, 2020 |
| Dns Bind | — | Upgrade ISC BIND to latest version | May 26, 2020 | May 19, 2020 |
| F5 Big Ip | — | Update F5 BIG-IP to the latest version | Jun 17, 2026 | May 21, 2020 |
| Huawei Euleros 2_0_sp2 | — | Upgrade bind-licenseUpgrade bind-pkcs11-libsUpgrade bind-utilsUpgrade bind-pkcs11-utilsUpgrade bind-pkcs11Upgrade bindUpgrade bind-libsUpgrade bind-libs-liteUpgrade bind-chroot | Jun 17, 2020 | May 19, 2020 |
| Huawei Euleros 2_0_sp3 | — | Upgrade bind-licenseUpgrade bindUpgrade bind-libsUpgrade bind-pkcs11Upgrade bind-pkcs11-utilsUpgrade bind-libs-liteUpgrade bind-chrootUpgrade bind-pkcs11-libsUpgrade bind-utils | Sep 28, 2020 | May 19, 2020 |
| Huawei Euleros 2_0_sp5 | — | Upgrade bind-pkcs11-libsUpgrade bind-utilsUpgrade bind-libsUpgrade bind-chrootUpgrade bind-pkcs11Upgrade bind-libs-liteUpgrade bindUpgrade bind-pkcs11-utilsUpgrade bind-license | Sep 3, 2020 | May 19, 2020 |
| Huawei Euleros 2_0_sp8 | — | Upgrade python3-bindUpgrade bind-export-libsUpgrade bind-licenseUpgrade bind-export-develUpgrade bind-pkcs11-utilsUpgrade bindUpgrade bind-pkcs11Upgrade bind-pkcs11-libsUpgrade bind-utilsUpgrade bind-libs-liteUpgrade bind-chrootUpgrade bind-libs | Jul 31, 2020 | May 19, 2020 |
| Ibm Aix | — | Apply the fix or workaround for bind_advisory17 | Aug 24, 2020 | May 19, 2020 |
| Oracle Solaris | — | Upgrade service/network/dns/bind to version 9.11.19.0.0-11.4.22.0.1.69.4 on Solaris 11.4Upgrade network/dns/bind to version 9.11.19.0.0-11.4.22.0.1.69.4 on Solaris 11.4 | Jan 19, 2021 | May 19, 2020 |
| Oracle_linux | — | Upgrade bind-libsUpgrade python3-bindUpgrade bind-chrootUpgrade bind-lite-develUpgrade bind-pkcs11-utilsUpgrade bind-pkcs11-libsUpgrade bind-develUpgrade bind-utilsUpgrade bind-libs-liteUpgrade bind-sdbUpgrade bind-pkcs11Upgrade bind-licenseUpgrade bind-export-develUpgrade bind-sdb-chrootUpgrade bind-pkcs11-develUpgrade bind-export-libsUpgrade bind | Jun 4, 2020 | May 19, 2020 |
| Redhat_linux | — | Upgrade bind-export-libs-debuginfoUpgrade bind-pkcs11Upgrade bind-pkcs11-libsUpgrade bind-libs-liteUpgrade bind-pkcs11-utilsUpgrade bind-develUpgrade bind-pkcs11-develUpgrade bind-pkcs11-debuginfoUpgrade bind-utilsUpgrade bind-libsUpgrade python3-bindUpgrade bind-libs-debuginfoNo solution existsUpgrade bind-sdb-chrootUpgrade bind-chrootUpgrade bind-sdb-debuginfoUpgrade bind-lite-develUpgrade bind-utils-debuginfoUpgrade bind-pkcs11-libs-debuginfoUpgrade bindUpgrade bind-debuginfoUpgrade bind-debugsourceUpgrade bind-export-develUpgrade bind-sdbUpgrade bind-libs-lite-debuginfoUpgrade bind-pkcs11-utils-debuginfoUpgrade bind-export-libsUpgrade bind-license | May 29, 2020 | May 19, 2020 |
| Suse | — | Upgrade libirs-develUpgrade libisccfg160Upgrade liblwres160Upgrade bind-chrootenvUpgrade bindUpgrade libisccfg1600-32bitUpgrade libisc1606Upgrade libbind9-1600-32bitUpgrade bind-devel-32bitUpgrade libbind9-160Upgrade bind-libsUpgrade bind-develUpgrade libdns1605-32bitUpgrade libuv1-32bitUpgrade libisccc1600-32bitUpgrade libuv-develUpgrade libbind9-1600Upgrade libirs160Upgrade libdns1605Upgrade libdns169Upgrade libuv1Upgrade bind-libs-32bitUpgrade sysuser-toolsUpgrade libirs1601-32bitUpgrade bind-utilsUpgrade libisc1606-32bitUpgrade libirs1601Upgrade python3-bindUpgrade libisc166Upgrade libisccc1600Upgrade sysuser-shadowUpgrade bind-docUpgrade libns1604Upgrade libisc166-32bitUpgrade libisccc160Upgrade libisccfg1600Upgrade python-bindUpgrade libns1604-32bit | May 21, 2020 | May 19, 2020 |
| Ubuntu | — | Upgrade bind9Upgrade bind9 (Ubuntu Pro) | May 20, 2020 | May 19, 2020 |
| Vmware Photon_os | — | Use 'tdnf update' to upgrade all packages to the latest version. | Jan 20, 2025 | May 19, 2020 |
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