A BIND resolver encountering an SVCB/HTTPS AliasMode record referencing 14 or more SVCB/HTTPS ServiceMode records may fail to properly deallocate internal resources. If this happens repeatedly, resource exhaustion will eventually prevent the resolver from performing new recursive lookups. This issue affects BIND 9 versions 9.18.0 through 9.18.50, 9.20.0 through 9.20.27, 9.21.0 through 9.21.25, 9.18.11-S1 through 9.18.50-S1, and 9.20.9-S1 through 9.20.27-S1.
CVSS Details
- CVSS 3.1 Base Score: 7.5
- CVSS 3.1 Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Alpine Linux | — | Upgrade bind | Sep 28, 2026 | Sep 16, 2026 |
| Amazon_linux_2023 | — | Upgrade bindUpgrade bind-dnssec-utils-debuginfoUpgrade bind-utils-debuginfoUpgrade bind-debugsourceUpgrade bind-chrootUpgrade bind-docUpgrade bind-libsUpgrade bind-develUpgrade bind-debuginfoUpgrade bind-dnssec-utilsUpgrade bind-utilsUpgrade bind-libs-debuginfoUpgrade bind-license | Sep 30, 2026 | Sep 16, 2026 |
| Debian | — | Upgrade bind9 | Sep 21, 2026 | Sep 16, 2026 |
| Freebsd | — | Upgrade bind920 | Oct 5, 2026 | Oct 4, 2026 |
| Redhat_linux | — | Upgrade bind-chrootUpgrade bind9.18-chrootUpgrade bind-docUpgrade bind-utilsUpgrade bind-dnssec-utilsUpgrade bind-utils-debuginfoUpgrade bind9.18-dnssec-utils-debuginfoUpgrade bind9.18-debuginfoUpgrade bind-libs-debuginfoUpgrade bind9.18-develUpgrade bindUpgrade bind-debugsourceUpgrade bind-licenseUpgrade bind9.18Upgrade bind9.18-dnssec-utilsUpgrade bind9.18-docUpgrade bind-debuginfoUpgrade bind9.18-libs-debuginfoUpgrade bind-libsUpgrade bind-develUpgrade bind-dnssec-utils-debuginfoUpgrade bind9.18-debugsourceUpgrade bind9.18-utils-debuginfoUpgrade bind9.18-utilsUpgrade bind9.18-libs | Sep 18, 2026 | Sep 16, 2026 |
| Rocky_linux | — | Upgrade bind9.18-utilsUpgrade bind9.18-libsUpgrade bind9.18-debugsourceUpgrade bind9.18-develUpgrade bind9.18Upgrade bind9.18-libs-debuginfoUpgrade bind9.18-utils-debuginfoUpgrade bind9.18-debuginfoUpgrade bind9.18-dnssec-utils-debuginfoUpgrade bind9.18-dnssec-utilsUpgrade bind9.18-chroot | Oct 7, 2026 | Oct 6, 2026 |
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