Many records in the additional section cause CPU exhaustion
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- Partial Red Hat: 40 fixed, 1 without a fix
Attack profile from CVSS 3.1 · CNA. Fix status from CNA and Red Hat.
Summary
It is possible to construct a zone such that some queries to it will generate responses containing numerous records in the Additional section. An attacker sending many such queries can cause either the authoritative server itself or an independent resolver to use disproportionate resources processing the queries. Zones will usually need to have been deliberately crafted to attack this exposure. This issue affects BIND 9 versions 9.11.0 through 9.11.37, 9.16.0 through 9.16.50, 9.18.0 through 9.18.32, 9.20.0 through 9.20.4, 9.21.0 through 9.21.3, 9.11.3-S1 through 9.11.37-S1, 9.16.8-S1 through 9.16.50-S1, and 9.18.11-S1 through 9.18.32-S1.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- Yes
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| ISC | BIND 9 | 9.11.0 – 9.11.37; 9.16.0 – 9.16.50; 9.18.0 – 9.18.32; 9.20.0 – 9.20.4; 9.21.0 – 9.21.3; 9.11.3-S1 – 9.11.37-S1; 9.16.8-S1 – 9.16.50-S1; 9.18.11-S1 – 9.18.32-S1 | — | No fix listed | CNA |
- BIND 9 VendorISC Affected 9.11.0 – 9.11.37; 9.16.0 – 9.16.50; 9.18.0 – 9.18.32; 9.20.0 – 9.20.4; 9.21.0 – 9.21.3; 9.11.3-S1 – 9.11.37-S1; 9.16.8-S1 – 9.16.50-S1; 9.18.11-S1 – 9.18.32-S1 Fixed in — No fix listed CNA
Remediation
Red Hat 23 advisories
- RHSA-2025:3775 Released 2025-04-16 · Red Hat rating ImportantOpenShift Container Platform 4.18.9 bug fix and security update
- Red Hat OpenShift Container Platform 4.18 openshift4/azure-kms-encryption-provider-rhel9, openshift4/ose-agent-installer-node-agent-rhel9, openshift4/ose-agent-installer-orchestrator-rhel9 +4
- RHSA-2025:2710 Released 2025-03-19 · Red Hat rating ImportantOpenShift Container Platform 4.14.49 bug fix and security update
- Red Hat OpenShift Container Platform 4.14 openshift4/ose-agent-installer-node-agent-rhel9, openshift4/ose-docker-builder, rhcos
- RHSA-2025:2441 Released 2025-03-13 · Red Hat rating ImportantOpenShift Container Platform 4.12.74 bug fix and security update
- Red Hat OpenShift Container Platform 4.12 openshift4/ose-agent-installer-csr-approver-rhel8, openshift4/ose-agent-installer-orchestrator-rhel8, openshift4/ose-docker-builder +2
Show 20 more Red Hat advisories
- RHSA-2025:2454 Released 2025-03-13 · Red Hat rating ImportantOpenShift Container Platform 4.15.47 bug fix and security update
- Red Hat OpenShift Container Platform 4.15 openshift4/ose-docker-builder, rhcos
- RHSA-2025:2588 Released 2025-03-10 · Red Hat rating ImportantRHOAI 2.18.0 - Red Hat OpenShift AI
- Red Hat OpenShift AI 2.18 registry.redhat.io/rhoai/odh-dashboard-rhel8, registry.redhat.io/rhoai/odh-mm-rest-proxy-rhel8, registry.redhat.io/rhoai/odh-modelmesh-rhel8 +2
- RHSA-2025:1907 Released 2025-03-05 · Red Hat rating ImportantOpenShift Container Platform 4.16.37 security update
- Red Hat OpenShift Container Platform 4.16 rhcos
- RHSA-2025:1912 Released 2025-03-05 · Red Hat rating ImportantOpenShift Container Platform 4.17.19 bug fix and security update
- Red Hat OpenShift Container Platform 4.17 rhcos
- RHSA-2025:1718 Released 2025-02-20 · Red Hat rating Importantbind security update
- Red Hat Enterprise Linux Server (v. 7 ELS) bind-32:9.11.4-26.P2.el7_9.18, bind-chroot-32:9.11.4-26.P2.el7_9.18, bind-export-libs-32:9.11.4-26.P2.el7_9.18 +11
- Red Hat Enterprise Linux Server Optional (v. 7 ELS) bind-devel-32:9.11.4-26.P2.el7_9.18, bind-devel-32:9.11.4-26.P2.el7_9.18.ppc, bind-export-devel-32:9.11.4-26.P2.el7_9.18 +7
- RHSA-2025:1691 Released 2025-02-19 · Red Hat rating Importantbind security update
- Red Hat Enterprise Linux AppStream AUS (v.8.4) bind-32:9.11.26-4.el8_4.7, bind-chroot-32:9.11.26-4.el8_4.7, bind-devel-32:9.11.26-4.el8_4.7 +12
- Red Hat Enterprise Linux AppStream E4S (v.8.4) bind-32:9.11.26-4.el8_4.7, bind-chroot-32:9.11.26-4.el8_4.7, bind-devel-32:9.11.26-4.el8_4.7 +12
- Red Hat Enterprise Linux AppStream TUS (v.8.4) bind-32:9.11.26-4.el8_4.7, bind-chroot-32:9.11.26-4.el8_4.7, bind-devel-32:9.11.26-4.el8_4.7 +12
- Red Hat Enterprise Linux BaseOS AUS (v.8.4) bind-32:9.11.26-4.el8_4.7, bind-export-devel-32:9.11.26-4.el8_4.7, bind-export-libs-32:9.11.26-4.el8_4.7
- Red Hat Enterprise Linux BaseOS E4S (v.8.4) bind-32:9.11.26-4.el8_4.7, bind-export-devel-32:9.11.26-4.el8_4.7, bind-export-libs-32:9.11.26-4.el8_4.7
- Red Hat Enterprise Linux BaseOS TUS (v.8.4) bind-32:9.11.26-4.el8_4.7, bind-export-devel-32:9.11.26-4.el8_4.7, bind-export-libs-32:9.11.26-4.el8_4.7
- RHSA-2025:1687 Released 2025-02-19 · Red Hat rating Importantbind security update
- Red Hat Enterprise Linux AppStream AUS (v. 8.2) bind-32:9.11.13-6.el8_2.10, bind-chroot-32:9.11.13-6.el8_2.10, bind-devel-32:9.11.13-6.el8_2.10 +12
- Red Hat Enterprise Linux BaseOS AUS (v. 8.2) bind-32:9.11.13-6.el8_2.10, bind-export-devel-32:9.11.13-6.el8_2.10, bind-export-libs-32:9.11.13-6.el8_2.10
- RHSA-2025:1685 Released 2025-02-19 · Red Hat rating Importantbind security update
- Red Hat Enterprise Linux Server -EXTENSION(v. 6 ELS-EXTENSION) bind-32:9.8.2-0.68.rc1.el6_10.15, bind-chroot-32:9.8.2-0.68.rc1.el6_10.15, bind-libs-32:9.8.2-0.68.rc1.el6_10.15 +1
- Red Hat Enterprise Linux Server Optional -EXTENSION (v. 6 ELS -EXTENSION) bind-devel-32:9.8.2-0.68.rc1.el6_10.15, bind-sdb-32:9.8.2-0.68.rc1.el6_10.15
- RHSA-2025:1684 Released 2025-02-19 · Red Hat rating Importantbind security update
- Red Hat Enterprise Linux AppStream AUS (v.8.6) bind-32:9.11.36-3.el8_6.10, bind-chroot-32:9.11.36-3.el8_6.10, bind-devel-32:9.11.36-3.el8_6.10 +12
- Red Hat Enterprise Linux AppStream E4S (v.8.6) bind-32:9.11.36-3.el8_6.10, bind-chroot-32:9.11.36-3.el8_6.10, bind-devel-32:9.11.36-3.el8_6.10 +12
- Red Hat Enterprise Linux AppStream TUS (v.8.6) bind-32:9.11.36-3.el8_6.10, bind-chroot-32:9.11.36-3.el8_6.10, bind-devel-32:9.11.36-3.el8_6.10 +12
- Red Hat Enterprise Linux BaseOS AUS (v.8.6) bind-32:9.11.36-3.el8_6.10, bind-export-devel-32:9.11.36-3.el8_6.10, bind-export-libs-32:9.11.36-3.el8_6.10
- Red Hat Enterprise Linux BaseOS E4S (v.8.6) bind-32:9.11.36-3.el8_6.10, bind-export-devel-32:9.11.36-3.el8_6.10, bind-export-libs-32:9.11.36-3.el8_6.10
- Red Hat Enterprise Linux BaseOS TUS (v.8.6) bind-32:9.11.36-3.el8_6.10, bind-export-devel-32:9.11.36-3.el8_6.10, bind-export-libs-32:9.11.36-3.el8_6.10
- RHSA-2025:1681 Released 2025-02-19 · Red Hat rating Importantbind security update
- Red Hat CodeReady Linux Builder (v. 9) bind-devel-32:9.16.23-24.el9_5.3, bind-doc-32:9.16.23-24.el9_5.3, bind-libs-32:9.16.23-24.el9_5.3
- Red Hat Enterprise Linux AppStream (v. 9) bind-32:9.16.23-24.el9_5.3, bind-chroot-32:9.16.23-24.el9_5.3, bind-dnssec-doc-32:9.16.23-24.el9_5.3 +5
- RHSA-2025:1678 Released 2025-02-19 · Red Hat rating Importantbind9.16 security update
- Red Hat CodeReady Linux Builder EUS (v.8.8) bind9.16-devel-32:9.16.23-0.14.el8_8.6, bind9.16-doc-32:9.16.23-0.14.el8_8.6, bind9.16-libs-32:9.16.23-0.14.el8_8.6
- Red Hat Enterprise Linux AppStream EUS (v.8.8) bind9.16-32:9.16.23-0.14.el8_8.6, bind9.16-chroot-32:9.16.23-0.14.el8_8.6, bind9.16-dnssec-utils-32:9.16.23-0.14.el8_8.6 +4
- RHSA-2025:1679 Released 2025-02-19 · Red Hat rating Importantbind9.16 security update
- Red Hat Enterprise Linux AppStream AUS (v.8.6) bind9.16-32:9.16.23-0.7.el8_6.8, bind9.16-chroot-32:9.16.23-0.7.el8_6.8, bind9.16-libs-32:9.16.23-0.7.el8_6.8 +2
- Red Hat Enterprise Linux AppStream E4S (v.8.6) bind9.16-32:9.16.23-0.7.el8_6.8, bind9.16-chroot-32:9.16.23-0.7.el8_6.8, bind9.16-libs-32:9.16.23-0.7.el8_6.8 +2
- Red Hat Enterprise Linux AppStream TUS (v.8.6) bind9.16-32:9.16.23-0.7.el8_6.8, bind9.16-chroot-32:9.16.23-0.7.el8_6.8, bind9.16-libs-32:9.16.23-0.7.el8_6.8 +2
- RHSA-2025:1675 Released 2025-02-19 · Red Hat rating Importantbind security update
- Red Hat Enterprise Linux AppStream (v. 8) bind-32:9.11.36-16.el8_10.4, bind-chroot-32:9.11.36-16.el8_10.4, bind-devel-32:9.11.36-16.el8_10.4 +12
- Red Hat Enterprise Linux BaseOS (v. 8) bind-32:9.11.36-16.el8_10.4, bind-export-devel-32:9.11.36-16.el8_10.4, bind-export-libs-32:9.11.36-16.el8_10.4
- RHSA-2025:1674 Released 2025-02-19 · Red Hat rating Importantbind security update
- Red Hat Enterprise Linux Server AUS (v. 7.7) bind-32:9.11.4-9.P2.el7_7.8, bind-chroot-32:9.11.4-9.P2.el7_7.8, bind-export-libs-32:9.11.4-9.P2.el7_7.8 +7
- Red Hat Enterprise Linux Server Optional AUS (v. 7.7) bind-devel-32:9.11.4-9.P2.el7_7.8, bind-export-devel-32:9.11.4-9.P2.el7_7.8, bind-lite-devel-32:9.11.4-9.P2.el7_7.8 +3
- RHSA-2025:1676 Released 2025-02-19 · Red Hat rating Importantbind9.16 security update
- Red Hat Enterprise Linux AppStream (v. 8) bind9.16-32:9.16.23-0.22.el8_10.2, bind9.16-chroot-32:9.16.23-0.22.el8_10.2, bind9.16-dnssec-utils-32:9.16.23-0.22.el8_10.2 +4
- Red Hat Enterprise Linux CRB (v. 8) bind9.16-devel-32:9.16.23-0.22.el8_10.2, bind9.16-doc-32:9.16.23-0.22.el8_10.2, bind9.16-libs-32:9.16.23-0.22.el8_10.2
- RHSA-2025:1670 Released 2025-02-19 · Red Hat rating Importantbind9.18 security update
- Red Hat CodeReady Linux Builder (v. 9) bind9.18-devel-32:9.18.29-1.el9_5.1, bind9.18-doc-32:9.18.29-1.el9_5.1, bind9.18-libs-32:9.18.29-1.el9_5.1
- Red Hat Enterprise Linux AppStream (v. 9) bind9.18-32:9.18.29-1.el9_5.1, bind9.18-chroot-32:9.18.29-1.el9_5.1, bind9.18-dnssec-utils-32:9.18.29-1.el9_5.1 +2
- RHSA-2025:1669 Released 2025-02-19 · Red Hat rating Importantbind security update
- Red Hat CodeReady Linux Builder EUS (v.9.4) bind-devel-32:9.16.23-18.el9_4.9, bind-doc-32:9.16.23-18.el9_4.9, bind-libs-32:9.16.23-18.el9_4.9
- Red Hat Enterprise Linux AppStream EUS (v.9.4) bind-32:9.16.23-18.el9_4.9, bind-chroot-32:9.16.23-18.el9_4.9, bind-dnssec-doc-32:9.16.23-18.el9_4.9 +5
- RHSA-2025:1666 Released 2025-02-19 · Red Hat rating Importantbind security update
- Red Hat Enterprise Linux AppStream EUS (v.8.8) bind-32:9.11.36-8.el8_8.7, bind-chroot-32:9.11.36-8.el8_8.7, bind-devel-32:9.11.36-8.el8_8.7 +12
- Red Hat Enterprise Linux BaseOS EUS (v.8.8) bind-32:9.11.36-8.el8_8.7, bind-export-devel-32:9.11.36-8.el8_8.7, bind-export-libs-32:9.11.36-8.el8_8.7
- RHSA-2025:1665 Released 2025-02-19 · Red Hat rating Importantbind security update
- Red Hat CodeReady Linux Builder EUS (v.9.2) bind-devel-32:9.16.23-11.el9_2.8, bind-doc-32:9.16.23-11.el9_2.8, bind-libs-32:9.16.23-11.el9_2.8
- Red Hat Enterprise Linux AppStream EUS (v.9.2) bind-32:9.16.23-11.el9_2.8, bind-chroot-32:9.16.23-11.el9_2.8, bind-dnssec-doc-32:9.16.23-11.el9_2.8 +5
- RHSA-2025:1664 Released 2025-02-19 · Red Hat rating Importantbind security update
- Red Hat Enterprise Linux AppStream E4S (v.9.0) bind-32:9.16.23-1.el9_0.10, bind-chroot-32:9.16.23-1.el9_0.10, bind-dnssec-doc-32:9.16.23-1.el9_0.10 +5
Vendor assessments
Red Hat
Red Hat rating: Important. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux 10 | Affected | No fix yet |
| Red Hat CodeReady Linux Builder (v. 9) | Fixed | RHSA-2025:1670, RHSA-2025:1681 |
| Red Hat CodeReady Linux Builder EUS (v.8.8) | Fixed | RHSA-2025:1678 |
| Red Hat CodeReady Linux Builder EUS (v.9.2) | Fixed | RHSA-2025:1665 |
| Red Hat CodeReady Linux Builder EUS (v.9.4) | Fixed | RHSA-2025:1669 |
| Red Hat Enterprise Linux AppStream (v. 8) | Fixed | RHSA-2025:1675, RHSA-2025:1676 |
| Red Hat Enterprise Linux AppStream (v. 9) | Fixed | RHSA-2025:1670, RHSA-2025:1681 |
| Red Hat Enterprise Linux AppStream AUS (v. 8.2) | Fixed | RHSA-2025:1687 |
| Red Hat Enterprise Linux AppStream AUS (v.8.4) | Fixed | RHSA-2025:1691 |
| Red Hat Enterprise Linux AppStream AUS (v.8.6) | Fixed | RHSA-2025:1679, RHSA-2025:1684 |
| Red Hat Enterprise Linux AppStream E4S (v.8.4) | Fixed | RHSA-2025:1691 |
| Red Hat Enterprise Linux AppStream E4S (v.8.6) | Fixed | RHSA-2025:1679, RHSA-2025:1684 |
| Red Hat Enterprise Linux AppStream E4S (v.9.0) | Fixed | RHSA-2025:1664 |
| Red Hat Enterprise Linux AppStream EUS (v.8.8) | Fixed | RHSA-2025:1666, RHSA-2025:1678 |
| Red Hat Enterprise Linux AppStream EUS (v.9.2) | Fixed | RHSA-2025:1665 |
| Red Hat Enterprise Linux AppStream EUS (v.9.4) | Fixed | RHSA-2025:1669 |
| Red Hat Enterprise Linux AppStream TUS (v.8.4) | Fixed | RHSA-2025:1691 |
| Red Hat Enterprise Linux AppStream TUS (v.8.6) | Fixed | RHSA-2025:1679, RHSA-2025:1684 |
| Red Hat Enterprise Linux BaseOS (v. 8) | Fixed | RHSA-2025:1675 |
| Red Hat Enterprise Linux BaseOS AUS (v. 8.2) | Fixed | RHSA-2025:1687 |
| Red Hat Enterprise Linux BaseOS AUS (v.8.4) | Fixed | RHSA-2025:1691 |
| Red Hat Enterprise Linux BaseOS AUS (v.8.6) | Fixed | RHSA-2025:1684 |
| Red Hat Enterprise Linux BaseOS E4S (v.8.4) | Fixed | RHSA-2025:1691 |
| Red Hat Enterprise Linux BaseOS E4S (v.8.6) | Fixed | RHSA-2025:1684 |
| Red Hat Enterprise Linux BaseOS EUS (v.8.8) | Fixed | RHSA-2025:1666 |
| Red Hat Enterprise Linux BaseOS TUS (v.8.4) | Fixed | RHSA-2025:1691 |
| Red Hat Enterprise Linux BaseOS TUS (v.8.6) | Fixed | RHSA-2025:1684 |
| Red Hat Enterprise Linux CRB (v. 8) | Fixed | RHSA-2025:1676 |
| Red Hat Enterprise Linux Server (v. 7 ELS) | Fixed | RHSA-2025:1718 |
| Red Hat Enterprise Linux Server -EXTENSION(v. 6 ELS-EXTENSION) | Fixed | RHSA-2025:1685 |
| Red Hat Enterprise Linux Server AUS (v. 7.7) | Fixed | RHSA-2025:1674 |
| Red Hat Enterprise Linux Server Optional (v. 7 ELS) | Fixed | RHSA-2025:1718 |
| Red Hat Enterprise Linux Server Optional -EXTENSION (v. 6 ELS -EXTENSION) | Fixed | RHSA-2025:1685 |
| Red Hat Enterprise Linux Server Optional AUS (v. 7.7) | Fixed | RHSA-2025:1674 |
| Red Hat OpenShift AI 2.18 | Fixed | RHSA-2025:2588 |
| Red Hat OpenShift Container Platform 4.12 | Fixed | RHSA-2025:2441 |
| Red Hat OpenShift Container Platform 4.14 | Fixed | RHSA-2025:2710 |
| Red Hat OpenShift Container Platform 4.15 | Fixed | RHSA-2025:2454 |
| Red Hat OpenShift Container Platform 4.16 | Fixed | RHSA-2025:1907 |
| Red Hat OpenShift Container Platform 4.17 | Fixed | RHSA-2025:1912 |
| Red Hat OpenShift Container Platform 4.18 | Fixed | RHSA-2025:3775 |
Not affected: 8 products
- Red Hat Enterprise Linux 9
- Red Hat OpenShift AI 2.18
- Red Hat OpenShift Container Platform 4.12
- Red Hat OpenShift Container Platform 4.14
- Red Hat OpenShift Container Platform 4.15
- Red Hat OpenShift Container Platform 4.16
- Red Hat OpenShift Container Platform 4.17
- Red Hat OpenShift Container Platform 4.18
Timeline
- 2026-10-02 Threatist record created from CVE-2024-11187
- 2026-10-03 Alias added: GHSA-w8w2-83mf-6cp5
- 2026-10-13 Affected versions changed · Red Hat
References
Advisory 1
More ISC vulnerabilities
- TI-2015-04610 Assertion failure in ISC BIND named via TKEY queries KEVCVSS 3.1HIGH 7.5
- TI-2023-27571 Certain DNSSEC aspects of the DNS protocol (in RFC 4033, 4034, 4035, 6840, and related… CVSS 3.1HIGH 7.5
- TI-2021-07476 A second vulnerability in BIND's GSSAPI security policy negotiation can be targeted by a buffer overflow attack CVSS 3.1CRITICAL 9.8
- TI-1999-00042 Command execution via shell metachars in INN daemon (innd) 1.5 using "newgroup" and… CVSS 3.1CRITICAL 9.8
- TI-2023-27773 The Closest Encloser Proof aspect of the DNS protocol (in RFC 5155 when RFC 9276 guidance… CVSS 3.1HIGH 7.5
- TI-2025-27240 Cache poisoning attacks with unsolicited RRs CVSS 3.1HIGH 8.6
Sources
- CVE-2024-11187 · CVE Program
- CVE-2024-11187 · NVD
- FIRST EPSS
- GHSA-w8w2-83mf-6cp5 · GitHub Advisory Database · CC BY 4.0
- CVE-2024-11187 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences