Description
A query with a specific set of characteristics could cause a server using DNS64 to encounter an assertion failure and terminate. An attacker could deliberately construct a query, enabling denial-of-service against a server if it was configured to use the DNS64 feature and other preconditions were met. Affects BIND 9.8.0 -> 9.8.8-P1, 9.9.0 -> 9.9.9-P6, 9.9.10b1->9.9.10rc1, 9.10.0 -> 9.10.4-P6, 9.10.5b1->9.10.5rc1, 9.11.0 -> 9.11.0-P3, 9.11.1b1->9.11.1rc1, 9.9.3-S1 -> 9.9.9-S8.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| ISC | BIND 9 | 9.8.0 -> 9.8.8-P1, 9.9.0 -> 9.9.9-P6, 9.9.10b1->9.9.10rc1, 9.10.0 -> 9.10.4-P6, 9.10.5b1->9.10.5rc1, 9.11.0 -> 9.11.0-P3, 9.11.1b1->9.11.1rc1, 9.9.3-S1 -> 9.9.9-S8 | — |
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 | 1:9.10.3.dfsg.P4-12.3 | — |
| Debian 13 | bind9 | 1:9.10.3.dfsg.P4-12.3 | — |
| Debian 12 | bind9 | 1:9.10.3.dfsg.P4-12.3 | — |
| Debian 8 | bind9 | 1:9.9.5.dfsg-9+deb8u11 | DSA-3854-1 |
| Debian 7 | bind9 | 1:9.8.4.dfsg.P1-6+nmu2+deb7u16 | DLA-957-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 16.04 LTS | bind9 | 1:9.10.3.dfsg.P4-8ubuntu1.6 | USN-3259-1 |
| Ubuntu 14.04 LTS | bind9 | 1:9.9.5.dfsg-3ubuntu0.14 | USN-3259-1 |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 7 | bind +13 | 32:9.9.4-38.el7_3.3 | RHSA-2017:1095 |
| RHEL 6 | bind +5 | 32:9.8.2-0.62.rc1.el6_9.1 | RHSA-2017:1105 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP2 | bind | 9.16.6-12.32.1 | SUSE-SU-2020:2914-1 |
| SLES 15 SP2 | sysuser-tools | 2.0-4.2.8 | SUSE-SU-2020:2914-1 |
| SLES 15 SP1 | bind | 9.16.6-12.32.1 | SUSE-SU-2020:2914-1 |
| SLES 15 SP1 | sysuser-tools | 2.0-4.2.8 | SUSE-SU-2020:2914-1 |
| SLES 15 | bind | 9.16.6-12.32.1 | SUSE-SU-2020:2914-1 |
| SLES 15 | sysuser-tools | 2.0-4.2.8 | SUSE-SU-2020:2914-1 |
| SLES 12 SP2 | bind | 9.9.9P1-59.1 | SUSE-SU-2017:0998-1 |
| SLES 12 SP1 | bind | 9.9.9P1-59.1 | SUSE-SU-2017:0998-1 |
Show 13 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 12 | bind | 9.9.9P1-28.34.1 | SUSE-SU-2017:0999-1 |
| SLES 11 SP4 | bind | 9.9.6P1-0.44.1 | SUSE-SU-2017:1000-1 |
| SLES 11 SP3 | bind | 9.9.6P1-0.44.1 | SUSE-SU-2017:1000-1 |
| SLES for SAP 15 | bind | 9.16.6-12.32.1 | SUSE-SU-2020:2914-1 |
| SLES for SAP 15 | sysuser-tools | 2.0-4.2.8 | SUSE-SU-2020:2914-1 |
| SLES for SAP 12 SP2 | bind | 9.9.9P1-59.1 | SUSE-SU-2017:0998-1 |
| SLES for SAP 12 SP1 | bind | 9.9.9P1-59.1 | SUSE-SU-2017:0998-1 |
| SLES for SAP 12 | bind | 9.9.9P1-28.34.1 | SUSE-SU-2017:0999-1 |
| SLES for SAP 11 SP4 | bind | 9.9.6P1-0.44.1 | SUSE-SU-2017:1000-1 |
| SLE HPC 15 | bind | 9.16.6-12.32.1 | SUSE-SU-2020:2914-1 |
| SLE HPC 15 | sysuser-tools | 2.0-4.2.8 | SUSE-SU-2020:2914-1 |
| SUSE OpenStack Cloud 5 | bind | 9.9.6P1-0.44.1 | SUSE-SU-2017:1000-1 |
| SUSE Manager Proxy 2.1 | bind | 9.9.6P1-0.44.1 | SUSE-SU-2017:1000-1 |
| SUSE Manager 2.1 | bind | 9.9.6P1-0.44.1 | SUSE-SU-2017:1000-1 |
| SUSE Linux Enterprise Point of Sale 11 SP3 | bind | 9.9.6P1-0.44.1 | SUSE-SU-2017:1000-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Leap 15.2 | bind | 9.16.6-lp152.14.3.1 | openSUSE-SU-2020:1699-1 |
| openSUSE Leap 15.2 | libuv | 1.18.0-lp152.4.3.1 | openSUSE-SU-2020:1699-1 |
| openSUSE Leap 15.2 | sysuser-tools | 2.0-lp152.5.3.1 | openSUSE-SU-2020:1699-1 |
| openSUSE Leap 15.1 | bind | 9.16.6-lp151.11.9.1 | openSUSE-SU-2020:1701-1 |
| openSUSE Leap 15.1 | libuv | 1.18.0-lp151.3.3.1 | openSUSE-SU-2020:1701-1 |
| openSUSE Leap 15.1 | sysuser-tools | 2.0-lp151.4.3.1 | openSUSE-SU-2020:1701-1 |
Alpine
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.24 | bind | 9.11.0_p5-r0 | — |
| Alpine v3.23 | bind | 9.11.0_p5-r0 | — |
| Alpine v3.22 | bind | 9.11.0_p5-r0 | — |
| Alpine v3.21 | bind | 9.11.0_p5-r0 | — |
| Alpine v3.20 | bind | 9.11.0_p5-r0 | — |
Show 17 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.19 | bind | 9.11.0_p5-r0 | — |
| Alpine v3.18 | bind | 9.11.0_p5-r0 | — |
| Alpine v3.17 | bind | 9.11.0_p5-r0 | — |
| Alpine v3.16 | bind | 9.11.0_p5-r0 | — |
| Alpine v3.15 | bind | 9.11.0_p5-r0 | — |
| Alpine v3.14 | bind | 9.11.0_p5-r0 | — |
| Alpine v3.13 | bind | 9.11.0_p5-r0 | — |
| Alpine v3.12 | bind | 9.11.0_p5-r0 | — |
| Alpine v3.11 | bind | 9.11.0_p5-r0 | — |
| Alpine v3.10 | bind | 9.11.0_p5-r0 | — |
| Alpine v3.9 | bind | 9.11.0_p5-r0 | — |
| Alpine v3.8 | bind | 9.11.0_p5-r0 | — |
| Alpine v3.7 | bind | 9.11.0_p5-r0 | — |
| Alpine v3.6 | bind | 9.11.0_p5-r0 | — |
| Alpine v3.5 | bind | 9.10.4_p8-r0 | — |
| Alpine v3.3 | bind | 9.10.4_p8-r0 | — |
| Alpine v3.2 | bind | 9.10.4_p8 | — |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 7 | bind +13 | 32:9.9.4-38.el7_3.3 | ELSA-2017-1095 |
Advisories 13
- RHSA-2017:1095 Red Hat Security Advisory: bind security update Red Hat Security Advisories (RHSA) · Jul 1, 2026
- RHSA-2017:1105 Red Hat Security Advisory: bind security update Red Hat Security Advisories (RHSA) · Jul 1, 2026
- USN-3259-1 bind9 vulnerabilities Ubuntu Security Notices (USN) · Apr 22, 2026
- DLA-957-1 bind9 - security update Debian Security (DSA / DLA) · Mar 9, 2026
- DSA-3854-1 bind9 - security update Debian Security (DSA / DLA) · Mar 9, 2026
- SUSE-SU-2017:1000-1 Security update for bind SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2017:0999-1 Security update for bind SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2017:0998-1 Security update for bind SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2020:2914-1 Security update for bind SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2020:1699-1 Security update for bind SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2020:1701-1 Security update for bind SUSE / openSUSE Security Updates · Feb 4, 2026
- WID-SEC-2025-1190 Internet Systems Consortium BIND: Schwachstellen ermöglichen Denial of Service BSI CERT-Bund (WID) · May 29, 2025
- ELSA-2017-1095 Important: bind security update (Oracle Linux 7) Oracle Linux Security Advisories (ELSA) · Apr 19, 2017
References
- RHSA-2017:1095 vendor-advisory
- GLSA-201708-01 vendor-advisory
- https://security.netapp.com/advisory/ntap-20180802-0002/
- https://h20566.www2.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbux03747en_us
- DSA-3854 vendor-advisory
- 1038259 vdb-entry
- 97653 vdb-entry
- RHSA-2017:1105 vendor-advisory
- https://kb.isc.org/docs/aa-01465
- openSUSE-SU-2020:1699 vendor-advisory
- openSUSE-SU-2020:1701 vendor-advisory