Vulnerability · Published Jan 29, 2025 · Assigned by isc

CVE-2024-11187Many records in the additional section cause CPU exhaustion

High 7.5

In plain English

A high-severity security flaw in BIND 9 from ISC. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 16.0% (higher than 97% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)7.5High
Exploit odds (30 days)16.0%top 3.1% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official 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.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
AlmaLinux:8bind32:9.11.36-16.el8_10.4ALSA-2025:1675
AlmaLinux:9bind32:9.16.23-24.el9_5.3ALSA-2025:1681
AlmaLinux:8bind-chroot32:9.11.36-16.el8_10.4ALSA-2025:1675
AlmaLinux:9bind-chroot32:9.16.23-24.el9_5.3ALSA-2025:1681
AlmaLinux:8bind-devel32:9.11.36-16.el8_10.4ALSA-2025:1675
AlmaLinux:9bind-devel32:9.16.23-24.el9_5.3ALSA-2025:1681
AlmaLinux:9bind-dnssec-doc32:9.16.23-24.el9_5.3ALSA-2025:1681
AlmaLinux:9bind-dnssec-utils32:9.16.23-24.el9_5.3ALSA-2025:1681
AlmaLinux:9bind-doc32:9.16.23-24.el9_5.3ALSA-2025:1681
AlmaLinux:8bind-export-devel32:9.11.36-16.el8_10.4ALSA-2025:1675
AlmaLinux:8bind-export-libs32:9.11.36-16.el8_10.4ALSA-2025:1675
AlmaLinux:8bind-libs32:9.11.36-16.el8_10.4ALSA-2025:1675
AlmaLinux:9bind-libs32:9.16.23-24.el9_5.3ALSA-2025:1681
AlmaLinux:8bind-libs-lite32:9.11.36-16.el8_10.4ALSA-2025:1675
AlmaLinux:8bind-license32:9.11.36-16.el8_10.4ALSA-2025:1675
AlmaLinux:9bind-license32:9.16.23-24.el9_5.3ALSA-2025:1681
AlmaLinux:8bind-lite-devel32:9.11.36-16.el8_10.4ALSA-2025:1675
AlmaLinux:8bind-pkcs1132:9.11.36-16.el8_10.4ALSA-2025:1675
AlmaLinux:8bind-pkcs11-devel32:9.11.36-16.el8_10.4ALSA-2025:1675
AlmaLinux:8bind-pkcs11-libs32:9.11.36-16.el8_10.4ALSA-2025:1675
AlmaLinux:8bind-pkcs11-utils32:9.11.36-16.el8_10.4ALSA-2025:1675
AlmaLinux:8bind-sdb32:9.11.36-16.el8_10.4ALSA-2025:1675
AlmaLinux:8bind-sdb-chroot32:9.11.36-16.el8_10.4ALSA-2025:1675
AlmaLinux:8bind-utils32:9.11.36-16.el8_10.4ALSA-2025:1675
AlmaLinux:9bind-utils32:9.16.23-24.el9_5.3ALSA-2025:1681
AlmaLinux:8bind9.1632:9.16.23-0.22.el8_10.2ALSA-2025:1676
AlmaLinux:8bind9.16-chroot32:9.16.23-0.22.el8_10.2ALSA-2025:1676
AlmaLinux:8bind9.16-devel32:9.16.23-0.22.el8_10.2ALSA-2025:1676
AlmaLinux:8bind9.16-dnssec-utils32:9.16.23-0.22.el8_10.2ALSA-2025:1676
AlmaLinux:8bind9.16-doc32:9.16.23-0.22.el8_10.2ALSA-2025:1676
AlmaLinux:8bind9.16-libs32:9.16.23-0.22.el8_10.2ALSA-2025:1676
AlmaLinux:8bind9.16-license32:9.16.23-0.22.el8_10.2ALSA-2025:1676
AlmaLinux:8bind9.16-utils32:9.16.23-0.22.el8_10.2ALSA-2025:1676
AlmaLinux:9bind9.1832:9.18.29-1.el9_5.1ALSA-2025:1670
AlmaLinux:9bind9.18-chroot32:9.18.29-1.el9_5.1ALSA-2025:1670
AlmaLinux:9bind9.18-devel32:9.18.29-1.el9_5.1ALSA-2025:1670
AlmaLinux:9bind9.18-dnssec-utils32:9.18.29-1.el9_5.1ALSA-2025:1670
AlmaLinux:9bind9.18-doc32:9.18.29-1.el9_5.1ALSA-2025:1670
AlmaLinux:9bind9.18-libs32:9.18.29-1.el9_5.1ALSA-2025:1670
AlmaLinux:9bind9.18-utils32:9.18.29-1.el9_5.1ALSA-2025:1670
AlmaLinux:8python3-bind32:9.11.36-16.el8_10.4ALSA-2025:1675
AlmaLinux:9python3-bind32:9.16.23-24.el9_5.3ALSA-2025:1681
AlmaLinux:8python3-bind9.1632:9.16.23-0.22.el8_10.2ALSA-2025:1676
Alpine:v3.20bind9.18.33-r0ALPINE-CVE-2024-11187
Alpine:v3.21bind9.18.33-r0ALPINE-CVE-2024-11187
Alpine:v3.22bind9.18.33-r0ALPINE-CVE-2024-11187
Alpine:v3.23bind9.18.33-r0ALPINE-CVE-2024-11187
Alpine:v3.24bind9.18.33-r0ALPINE-CVE-2024-11187
Debian:12bind91:9.18.33-1~deb12u2DEBIAN-CVE-2024-11187
Debian:12bind91:9.18.33-1~deb12u2DSA-5854-1
Debian:13bind91:9.20.5-1DEBIAN-CVE-2024-11187
Debian:14bind91:9.20.5-1DEBIAN-CVE-2024-11187
Rocky Linux:8bind2:9.11.36-16.el8_10.4RLSA-2025:1675
Rocky Linux:9bind2:9.16.23-24.el9_5.3RLSA-2025:1681
Rocky Linux:8bind9.162:9.16.23-0.22.el8_10.2RLSA-2025:1676
Rocky Linux:9bind9.182:9.18.29-1.el9_5.1RLSA-2025:1670
Ubuntu:22.04:LTSbind91:9.18.30-0ubuntu0.22.04.2UBUNTU-CVE-2024-11187
Ubuntu:22.04:LTSbind91:9.18.30-0ubuntu0.22.04.2USN-7241-1
Ubuntu:24.04:LTSbind91:9.18.30-0ubuntu0.24.04.2USN-7241-1
Ubuntu:24.04:LTSbind91:9.18.30-0ubuntu0.24.04.2UBUNTU-CVE-2024-11187
Ubuntu:22.04:LTSbind9-libsno fix listedUBUNTU-CVE-2024-11187
Ubuntu:24.04:LTSisc-dhcpno fix listedUBUNTU-CVE-2024-11187
Ubuntu:25.10isc-dhcpno fix listedUBUNTU-CVE-2024-11187
Ubuntu:26.04:LTSisc-dhcpno fix listedUBUNTU-CVE-2024-11187

Affected products (as reported)

VendorProductVersions
ISC BIND 9 9.11.0 – through 9.11.379.16.0 – through 9.16.509.18.0 – through 9.18.329.20.0 – through 9.20.49.21.0 – through 9.21.39.11.3-S1 – through 9.11.37-S19.16.8-S1 – through 9.16.50-S19.18.11-S1 – through 9.18.32-S1

Weakness: CWE-405 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

References