Description
A race condition which may occur when discarding malformed packets can result in BIND exiting due to a REQUIRE assertion failure in dispatch.c. Versions affected: BIND 9.11.0 -> 9.11.7, 9.12.0 -> 9.12.4-P1, 9.14.0 -> 9.14.2. Also all releases of the BIND 9.13 development branch and version 9.15.0 of the BIND 9.15 development branch and BIND Supported Preview Edition versions 9.11.3-S1 -> 9.11.7-S1.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| ISC | BIND 9 | BIND 9.11.0 -> 9.11.7, 9.12.0 -> 9.12.4-P1, 9.14.0 -> 9.14.2. Also all releases of the BIND 9.13 development branch and version 9.15.0 of the BIND 9.15 development branch and BIND Supported Preview Edition versions 9.11.3-S1 -> 9.11.7-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 | 1:9.11.5.P4+dfsg-5.1 | — |
| Debian 13 | bind9 | 1:9.11.5.P4+dfsg-5.1 | — |
| Debian 12 | bind9 | 1:9.11.5.P4+dfsg-5.1 | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 18.04 LTS | bind9 | 1:9.11.3+dfsg-1ubuntu1.8 | USN-4026-1 |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 8 | bind +16 | 32:9.11.4-17.P2.el8_0.1 | RHSA-2019:1714 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP1 | bind | 9.11.2-12.13.2 | SUSE-SU-2019:2550-1 |
| SLES 15 | bind | 9.11.2-12.13.2 | SUSE-SU-2019:2550-1 |
| SLES 12 SP4 | bind | 9.11.2-3.10.1 | SUSE-SU-2019:2502-1 |
Show 1 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES for SAP 12 SP4 | bind | 9.11.2-3.10.1 | SUSE-SU-2019:2502-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | bind | 9.16.20-1.4 | openSUSE-SU-2024:10650-1 |
| openSUSE Leap 15.1 | bind | 9.11.2-lp151.11.6.1 | openSUSE-SU-2019:2265-1 |
| openSUSE Leap 15.0 | bind | 9.11.2-lp150.8.16.1 | openSUSE-SU-2019:2263-1 |
Alpine
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.24 | bind | 9.14.4-r0 | — |
| Alpine v3.23 | bind | 9.14.4-r0 | — |
| Alpine v3.22 | bind | 9.14.4-r0 | — |
| Alpine v3.21 | bind | 9.14.4-r0 | — |
| Alpine v3.20 | bind | 9.14.4-r0 | — |
Show 13 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.19 | bind | 9.14.4-r0 | — |
| Alpine v3.18 | bind | 9.14.4-r0 | — |
| Alpine v3.17 | bind | 9.14.4-r0 | — |
| Alpine v3.16 | bind | 9.14.4-r0 | — |
| Alpine v3.15 | bind | 9.14.4-r0 | — |
| Alpine v3.14 | bind | 9.14.4-r0 | — |
| Alpine v3.13 | bind | 9.14.4-r0 | — |
| Alpine v3.12 | bind | 9.14.4-r0 | — |
| Alpine v3.11 | bind | 9.14.4-r0 | — |
| Alpine v3.10 | bind | 9.14.3-r0 | — |
| Alpine v3.9 | bind | 9.12.4_p2-r0 | — |
| Alpine v3.8 | bind | 9.12.4_p2-r0 | — |
| Alpine v3.7 | bind | 9.11.8-r0 | — |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 8 | bind +16 | 32:9.11.4-17.P2.el8_0.1 | ELSA-2019-1714 |
Advisories 9
- RHSA-2019:1714 Red Hat Security Advisory: bind security update Red Hat Security Advisories (RHSA) · Jun 26, 2026
- USN-4026-1 bind9 vulnerability Ubuntu Security Notices (USN) · Apr 22, 2026
- SUSE-SU-2019:2550-1 Security update for bind SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2019:2502-1 Security update for bind SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2024:10650-1 bind-9.16.20-1.4 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2019:2263-1 Security update for bind SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2019:2265-1 Security update for bind SUSE / openSUSE Security Updates · Feb 4, 2026
- WID-SEC-2025-1197 Internet Systems Consortium BIND: Schwachstelle ermöglicht Denial of Service BSI CERT-Bund (WID) · May 29, 2025
- ELSA-2019-1714 Important: bind security update (Oracle Linux 8) Oracle Linux Security Advisories (ELSA) · Jul 30, 2019