Description
Malformed BRID/HHIT records can cause `named` to terminate unexpectedly.
This issue affects BIND 9 versions 9.18.40 through 9.18.43, 9.20.13 through 9.20.17, 9.21.12 through 9.21.16, 9.18.40-S1 through 9.18.43-S1, and 9.20.13-S1 through 9.20.17-S1.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| ISC | BIND 9 | 9.18.40 – ≤ 9.18.43, 9.20.13 – ≤ 9.20.17, 9.21.12 – ≤ 9.21.16, 9.18.40-S1 – ≤ 9.18.43-S1, 9.20.13-S1 – ≤ 9.20.17-S1 | — |
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | bind9 | 1:9.20.18-1 | — |
| Debian 13 | bind9 | 1:9.20.18-1~deb13u1 | DSA-6107-1 |
| Debian 12 | bind9 | 1:9.18.44-1~deb12u1 | DSA-6107-1 |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Red Hat Hardened Images 1 | bind +6 | 9.18.48-1.hum1 | RHSA-2026:6935 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP7 | bind | 9.20.18-150700.3.15.1 | SUSE-SU-2026:0348-1 |
Show 2 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES for SAP 16.0 | bind | 9.20.18-160000.1.1 | SUSE-SU-2026:20135-1 |
| SLES 16.0 | bind | 9.20.18-160000.1.1 | SUSE-SU-2026:20135-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | bind | 9.20.18-1.1 | openSUSE-SU-2026:10080-1 |
| openSUSE Leap 16.0 | bind | 9.20.18-160000.1.1 | openSUSE-SU-2026:20091-1 |
Alpine
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.24 | bind | 9.20.18-r0 | — |
| Alpine v3.23 | bind | 9.20.18-r0 | — |
| Alpine v3.22 | bind | 9.20.18-r0 | — |
| Alpine v3.21 | bind | 9.18.44-r0 | — |
| Alpine v3.20 | bind | 9.18.44-r0 | — |
Show 1 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.19 | bind | 9.18.44-r0 | — |
Azure Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Azure Linux 3 | bind | 9.20.18-1 | — |
Advisories 8
- RHSA-2026:6935 Red Hat Security Advisory: Red Hat Hardened Images RPMs bug fix and enhancement update Red Hat Security Advisories (RHSA) · Oct 14, 2026
- WID-SEC-2026-0188 Internet Systems Consortium BIND: Schwachstelle ermöglicht Denial of Service BSI CERT-Bund (WID) · Jul 5, 2026
- openSUSE-SU-2026:20091-1 Security update for bind SUSE / openSUSE Security Updates · Mar 23, 2026
- openSUSE-SU-2026:10080-1 bind-9.20.18-1.1 on GA media SUSE / openSUSE Security Updates · Mar 23, 2026
- SUSE-SU-2026:20135-1 Security update for bind SUSE / openSUSE Security Updates · Mar 23, 2026
- SUSE-SU-2026:0348-1 Security update for bind SUSE / openSUSE Security Updates · Feb 4, 2026
- NCSC-2026-0038 Kwetsbaarheid verholpen in BIND 9 NCSC-NL (Netherlands) · Jan 23, 2026
- DSA-6107-1 bind9 - security update Debian Security (DSA / DLA) · Jan 22, 2026
References
- CVE-2025-13878 vendor-advisory
- https://downloads.isc.org/isc/bind9/9.18.44 patch
- https://downloads.isc.org/isc/bind9/9.20.18 patch
- https://downloads.isc.org/isc/bind9/9.21.17 patch