Description
The code that processes control channel messages sent to `named` calls certain functions recursively during packet parsing. Recursion depth is only limited by the maximum accepted packet size; depending on the environment, this may cause the packet-parsing code to run out of available stack memory, causing `named` to terminate unexpectedly. Since each incoming control channel message is fully parsed before its contents are authenticated, exploiting this flaw does not require the attacker to hold a valid RNDC key; only network access to the control channel's configured TCP port is necessary.
This issue affects BIND 9 versions 9.2.0 through 9.16.43, 9.18.0 through 9.18.18, 9.19.0 through 9.19.16, 9.9.3-S1 through 9.16.43-S1, and 9.18.0-S1 through 9.18.18-S1.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| ISC | BIND 9 | 9.2.0 – ≤ 9.16.43, 9.18.0 – ≤ 9.18.18, 9.19.0 – ≤ 9.19.16, 9.9.3-S1 – ≤ 9.16.43-S1, 9.18.0-S1 – ≤ 9.18.18-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 | 1:9.19.17-1 | — |
| Debian 13 | bind9 | 1:9.19.17-1 | — |
| Debian 12 | bind9 | 1:9.18.19-1~deb12u1 | DSA-5504-1 |
| Debian 11 | bind9 | 1:9.16.44-1~deb11u1 | DSA-5504-1 |
| Debian 10 | bind9 | 1:9.11.5.P4+dfsg-5.1+deb10u10 | DLA-3726-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 24.04 LTS | bind9 | 1:9.18.18-0ubuntu2 | — |
| Ubuntu 22.04 LTS | bind9 | 1:9.18.12-0ubuntu0.22.04.3 | USN-6390-1 |
| Ubuntu 20.04 LTS | bind9 | 1:9.16.1-0ubuntu2.16 | USN-6390-1 |
Show 3 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Pro 18.04 LTS | bind9 | 1:9.11.3+dfsg-1ubuntu1.19+esm2 | USN-6421-1 |
| Ubuntu Pro 16.04 LTS | bind9 | 1:9.10.3.dfsg.P4-8ubuntu1.19+esm7 | USN-6421-1 |
| Ubuntu Pro 14.04 LTS | bind9 | 1:9.9.5.dfsg-3ubuntu0.19+esm11 | USN-6421-1 |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 9 | bind +9 | 32:9.16.23-11.el9_2.2 | RHSA-2023:5689 |
| RHEL 8 | bind +16 | 32:9.11.36-8.el8_8.2 | RHSA-2023:5474 |
| RHEL 8 | bind9.16 +8 | 32:9.16.23-0.14.el8_8.2 | RHSA-2023:5460 |
| RHEL 7 | bind +15 | 32:9.11.4-26.P2.el7_9.15 | RHSA-2023:5691 |
Show 10 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 9.0 EUS | bind +8 | 32:9.16.23-1.el9_0.3 | RHSA-2023:5690 |
| RHEL 8.6 EUS | bind +16 | 32:9.11.36-3.el8_6.5 | RHSA-2023:5473 |
| RHEL 8.6 EUS | bind9.16 +8 | 32:9.16.23-0.7.el8_6.3 | RHSA-2023:5771 |
| RHEL 8.4 TUS | bind +16 | 32:9.11.26-4.el8_4.3 | RHSA-2023:5529 |
| RHEL 8.4 E4S | bind +16 | 32:9.11.26-4.el8_4.3 | RHSA-2023:5529 |
| RHEL 8.4 AUS | bind +16 | 32:9.11.26-4.el8_4.3 | RHSA-2023:5529 |
| RHEL 8.2 TUS | bind +16 | 32:9.11.13-6.el8_2.6 | RHSA-2023:5527 |
| RHEL 8.2 E4S | bind +16 | 32:9.11.13-6.el8_2.6 | RHSA-2023:5527 |
| RHEL 8.2 AUS | bind +16 | 32:9.11.13-6.el8_2.6 | RHSA-2023:5527 |
| RHEL 8.1 E4S | bind +16 | 32:9.11.4-26.P2.el8_1.8 | RHSA-2023:5526 |
| RHEL 6 ELS | bind +5 | 32:9.8.2-0.68.rc1.el6_10.14 | RHSA-2025:0039 |
| RHEL 6 ELS | bind-dyndb-ldap | 2.3-8.el6_10.1 | RHSA-2025:0039 |
AlmaLinux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| AlmaLinux 9 | bind +9 | 32:9.16.23-11.el9_2.2 | ALSA-2023:5689 |
| AlmaLinux 8 | bind +16 | 32:9.11.36-8.el8_8.2 | ALSA-2023:5474 |
| AlmaLinux 8 | bind9.16 +8 | 32:9.16.23-0.14.el8_8.2.alma.1 | ALSA-2023:5460 |
Rocky Linux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Rocky Linux 9 | bind | 2:9.16.23-11.el9_2.2 | RLSA-2023:5689 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP5 | bind | 9.16.44-150500.8.12.2 | SUSE-SU-2023:3821-1 |
| SLES 15 SP4 | bind | 9.16.44-150400.5.37.2 | SUSE-SU-2023:3737-1 |
| SLES 15 SP3 | bind | 9.16.6-150300.22.41.1 | SUSE-SU-2023:3934-1 |
| SLES 15 SP2 | bind | 9.16.6-150000.12.71.1 | SUSE-SU-2023:3805-1 |
| SLES 15 SP1 | bind | 9.16.6-150000.12.71.1 | SUSE-SU-2023:3805-1 |
Show 12 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 12 SP5 | bind | 9.11.22-3.49.1 | SUSE-SU-2023:3796-1 |
| SLES for SAP 15 SP3 | bind | 9.16.6-150300.22.41.1 | SUSE-SU-2023:3934-1 |
| SLES for SAP 15 SP2 | bind | 9.16.6-150000.12.71.1 | SUSE-SU-2023:3805-1 |
| SLES for SAP 15 SP1 | bind | 9.16.6-150000.12.71.1 | SUSE-SU-2023:3805-1 |
| SLES for SAP 12 SP5 | bind | 9.11.22-3.49.1 | SUSE-SU-2023:3796-1 |
| SLE HPC 15 SP3 | bind | 9.16.6-150300.22.41.1 | SUSE-SU-2023:3934-1 |
| SLE HPC 15 SP2 | bind | 9.16.6-150000.12.71.1 | SUSE-SU-2023:3805-1 |
| SLE HPC 15 SP1 | bind | 9.16.6-150000.12.71.1 | SUSE-SU-2023:3805-1 |
| SUSE Manager Server 4.2 | bind | 9.16.6-150300.22.41.1 | SUSE-SU-2023:3934-1 |
| SUSE Manager Proxy 4.2 | bind | 9.16.6-150300.22.41.1 | SUSE-SU-2023:3934-1 |
| SUSE Manager Client Tools for SLE Micro 5 | bind | 9.16.6-150000.12.71.1 | SUSE-SU-2023:3805-1 |
| SUSE Enterprise Storage 7.1 | bind | 9.16.6-150300.22.41.1 | SUSE-SU-2023:3934-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | bind | 9.18.19-1.1 | openSUSE-SU-2024:13249-1 |
| openSUSE Leap 15.5 | bind | 9.16.44-150500.8.12.2 | SUSE-SU-2023:3821-1 |
| openSUSE Leap 15.4 | bind | 9.16.6-150000.12.71.1 | SUSE-SU-2023:3805-1, SUSE-SU-2023:3737-1 |
Alpine
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.24 | bind | 9.18.19-r0 | — |
| Alpine v3.23 | bind | 9.18.19-r0 | — |
| Alpine v3.22 | bind | 9.18.19-r0 | — |
| Alpine v3.21 | bind | 9.18.19-r0 | — |
| Alpine v3.20 | bind | 9.18.19-r0 | — |
Show 5 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.19 | bind | 9.18.19-r0 | — |
| Alpine v3.18 | bind | 9.18.19-r0 | — |
| Alpine v3.17 | bind | 9.18.19-r0 | — |
| Alpine v3.16 | bind | 9.16.44-r0 | — |
| Alpine v3.15 | bind | 9.16.44-r0 | — |
Amazon Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Amazon Linux 2023 | bind +17 | 32:9.16.42-1.amzn2023.0.5 | ALAS2023-2023-372 |
| Amazon Linux 2 | bind +15 | 32:9.11.4-26.P2.amzn2.13.5 | ALAS2-2023-2273 |
Azure Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Azure Linux 3 | bind | 9.16.44-1 | — |
| Azure Linux 2 (CBL-Mariner) | bind | 9.16.44-1 | — |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 9 | bind +9 | 32:9.16.23-11.el9_2.2 | ELSA-2023-5689 |
| Oracle Linux 8 | bind +16 | 32:9.11.36-8.el8_8.2 | ELSA-2023-5474 |
| Oracle Linux 8 | bind9.16 +8 | 32:9.16.23-0.14.el8_8.2 | ELSA-2023-5460 |
| Oracle Linux 7 | bind +15 | 32:9.11.4-26.P2.el7_9.15 | ELSA-2023-5691 |
Advisories 39
- ALSA-2023:5689 Important: bind security update AlmaLinux Security Advisories · Oct 29, 2026
- ALSA-2023:5460 Important: bind9.16 security update AlmaLinux Security Advisories · Oct 29, 2026
- ALSA-2023:5474 Important: bind security update AlmaLinux Security Advisories · Oct 29, 2026
- RHSA-2025:0039 Red Hat Security Advisory: bind and bind-dyndb-ldap security update Red Hat Security Advisories (RHSA) · Sep 20, 2026
- RHSA-2023:5771 Red Hat Security Advisory: bind9.16 security update Red Hat Security Advisories (RHSA) · Sep 20, 2026
- RHSA-2023:5690 Red Hat Security Advisory: bind security update Red Hat Security Advisories (RHSA) · Sep 20, 2026
- RHSA-2023:5691 Red Hat Security Advisory: bind security update Red Hat Security Advisories (RHSA) · Sep 20, 2026
- RHSA-2023:5689 Red Hat Security Advisory: bind security update Red Hat Security Advisories (RHSA) · Sep 20, 2026
- RHSA-2023:5527 Red Hat Security Advisory: bind security update Red Hat Security Advisories (RHSA) · Sep 20, 2026
- RHSA-2023:5529 Red Hat Security Advisory: bind security update Red Hat Security Advisories (RHSA) · Sep 20, 2026
- RHSA-2023:5526 Red Hat Security Advisory: bind security update Red Hat Security Advisories (RHSA) · Sep 20, 2026
- RHSA-2023:5473 Red Hat Security Advisory: bind security update Red Hat Security Advisories (RHSA) · Sep 20, 2026
- RHSA-2023:5474 Red Hat Security Advisory: bind security update Red Hat Security Advisories (RHSA) · Sep 20, 2026
- RHSA-2023:5460 Red Hat Security Advisory: bind9.16 security update Red Hat Security Advisories (RHSA) · Sep 20, 2026
- USN-6421-1 bind9 vulnerability Ubuntu Security Notices (USN) · Jun 29, 2026
- USN-6390-1 bind9 vulnerabilities Ubuntu Security Notices (USN) · Apr 22, 2026
- DSA-5504-1 bind9 - security update Debian Security (DSA / DLA) · Mar 9, 2026
- DLA-3726-1 bind9 - security update Debian Security (DSA / DLA) · Mar 9, 2026
- RLSA-2023:5689 Important: bind security update Rocky Linux Security Advisories · Feb 4, 2026
- SUSE-SU-2023:3805-1 Security update for bind SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2023:3796-1 Security update for bind SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2023:3934-1 Security update for bind SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2024:13249-1 bind-9.18.19-1.1 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2023:3737-1 Security update for bind SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2023:3821-1 Security update for bind SUSE / openSUSE Security Updates · Feb 4, 2026
- WID-SEC-2023-2412 Internet Systems Consortium BIND: Mehrere Schwachstellen BSI CERT-Bund (WID) · Jan 6, 2026
- WID-SEC-2024-0064 Juniper Produkte: Mehrere Schwachstellen BSI CERT-Bund (WID) · Apr 10, 2025
- 2NGA002579 ABB Arctic communication solution ARM600 Vulnerabilities ABB PSIRT · Apr 7, 2025
- ICSA-25-105-08 ABB M2M Gateway CISA ICS & IT advisories · Apr 7, 2025
- NCSC-2024-0433 Kwetsbaarheden verholpen in Siemens producten NCSC-NL (Netherlands) · Nov 12, 2024
- SSA-915275 SSA-915275: Multiple Vulnerabilities in SINEC INS Before V1.0 SP2 Update 3 Siemens ProductCERT · Nov 12, 2024
- ICSA-24-319-08 Siemens SINEC INS CISA ICS & IT advisories · Nov 12, 2024
- WID-SEC-2024-1591 Juniper JUNOS: Mehrere Schwachstellen BSI CERT-Bund (WID) · Nov 11, 2024
- ELSA-2023-5689 Important: bind security update (Oracle Linux 9) Oracle Linux Security Advisories (ELSA) · Oct 13, 2023
- ELSA-2023-5691 Important: bind security update (Oracle Linux 7) Oracle Linux Security Advisories (ELSA) · Oct 13, 2023
- ELSA-2023-5460 Important: bind9.16 security update (Oracle Linux 8) Oracle Linux Security Advisories (ELSA) · Oct 6, 2023
- ELSA-2023-5474 Important: bind security update (Oracle Linux 8) Oracle Linux Security Advisories (ELSA) · Oct 6, 2023
- ALAS2-2023-2273 Important: bind security update (Amazon Linux 2) Amazon Linux Security Center (ALAS) · Oct 5, 2023
- ALAS2023-2023-372 Important: bind security update (Amazon Linux 2023) Amazon Linux Security Center (ALAS) · Oct 3, 2023
References
- CVE-2023-3341 vendor-advisory
- http://www.openwall.com/lists/oss-security/2023/09/20/2
- https://www.debian.org/security/2023/dsa-5504
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/IPJLLTJCSDJJII7IIZPLTBQNWP7MZH7F/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/U35OARLQCPMVCBBPHWBXY5M6XJLD2TZ5/
- https://security.netapp.com/advisory/ntap-20231013-0003/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/VSK5V4W4OHPM3JTJGWAQD6CZW7SFD75B/
- https://lists.debian.org/debian-lts-announce/2024/01/msg00021.html