CVE-2024-11187

Many records in the additional section cause CPU exhaustion

Published Jan 29, 2025 CVSS 3.1 · 7.5 High EPSS 16.1% KEV · Not listed
Description
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.

Remediation

Vendor Solution

Upgrade to the patched release most closely related to your current version of BIND 9: 9.18.33, 9.20.5, 9.21.4, or 9.18.33-S1.


Vendor Workaround

Setting option `minimal-responses yes;` provides an effective workaround.

Tracking

Sign in to view the affected projects.

Advisories

Source ID Title
Debian DLA Debian DLA DLA-4050-1 bind9 security update
Debian DSA Debian DSA DSA-5854-1 bind9 security update
EUVD EUVD EUVD-2024-34391 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.
Ubuntu USN Ubuntu USN USN-7241-1 Bind vulnerabilities
History
Type Values Removed Values Added
Metrics epss

{'score': 0.00298}

epss

{'score': 0.00144}

Type Values Removed Values Added
Metrics epss

{'score': 0.00144}

epss

{'score': 0.00298}

Type Values Removed Values Added
Metrics epss

{'score': 0.00194}

epss

{'score': 0.00144}

Type Values Removed Values Added
CPEs cpe:/a:redhat:openshift:4.18::el9
Type Values Removed Values Added
CPEs cpe:/a:redhat:openshift:4.14::el9
Type Values Removed Values Added
CPEs cpe:/a:redhat:openshift:4.12::el8
Type Values Removed Values Added
CPEs cpe:/a:redhat:openshift:4.15::el9
Type Values Removed Values Added
First Time appeared Redhat openshift Ai
CPEs cpe:/a:redhat:openshift_ai:2.18::el8
Vendors & Products Redhat openshift Ai
Type Values Removed Values Added
First Time appeared Redhat openshift
CPEs cpe:/a:redhat:openshift:4.16::el9
cpe:/a:redhat:openshift:4.17::el9
Vendors & Products Redhat openshift
Type Values Removed Values Added
CPEs cpe:/o:redhat:rhel_els:7
Type Values Removed Values Added
First Time appeared Redhat enterprise Linux
Redhat rhel Aus
Redhat rhel Els
Redhat rhel Tus
CPEs cpe:/a:redhat:enterprise_linux:8
cpe:/a:redhat:enterprise_linux:9
cpe:/a:redhat:rhel_aus:8.2
cpe:/a:redhat:rhel_aus:8.4
cpe:/a:redhat:rhel_aus:8.6
cpe:/a:redhat:rhel_e4s:8.4
cpe:/a:redhat:rhel_e4s:8.6
cpe:/a:redhat:rhel_tus:8.4
cpe:/a:redhat:rhel_tus:8.6
cpe:/o:redhat:enterprise_linux:8
cpe:/o:redhat:rhel_aus:7.7
cpe:/o:redhat:rhel_els:6
Vendors & Products Redhat enterprise Linux
Redhat rhel Aus
Redhat rhel Els
Redhat rhel Tus
Type Values Removed Values Added
First Time appeared Redhat
Redhat rhel E4s
Redhat rhel Eus
CPEs cpe:/a:redhat:rhel_e4s:9.0
cpe:/a:redhat:rhel_eus:8.8
cpe:/a:redhat:rhel_eus:9.2
cpe:/a:redhat:rhel_eus:9.4
Vendors & Products Redhat
Redhat rhel E4s
Redhat rhel Eus
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
Description 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.
Title Many records in the additional section cause CPU exhaustion
Weaknesses CWE-405
References
Metrics cvssV3_1

{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
isc
Published
Updated
Feb 11, 2025, 7:02 PM
Reserved
Nov 13, 2024, 5:20 PM
Status
Deferred
Published
Jan 29, 2025, 10:15 PM
Modified
Jun 17, 2026, 6:57 AM
Severity
Important
Public date
Jan 29, 2025, 12:00 AM