Vulnerability · Published Jan 29, 2025 · Assigned by isc
CVE-2024-12705DNS-over-HTTPS implementation suffers from multiple issues under heavy query load
High 7.5
In plain English
A high-severity resource allocation without limits 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 18.6% (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)18.6%top 2.7% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
Clients using DNS-over-HTTPS (DoH) can exhaust a DNS resolver's CPU and/or memory by flooding it with crafted valid or invalid HTTP/2 traffic. This issue affects BIND 9 versions 9.18.0 through 9.18.32, 9.20.0 through 9.20.4, 9.21.0 through 9.21.3, and 9.18.11-S1 through 9.18.32-S1.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| AlmaLinux:9 | bind9.18 | 32:9.18.29-1.el9_5.1 | ALSA-2025:1670 |
| AlmaLinux:9 | bind9.18-chroot | 32:9.18.29-1.el9_5.1 | ALSA-2025:1670 |
| AlmaLinux:9 | bind9.18-devel | 32:9.18.29-1.el9_5.1 | ALSA-2025:1670 |
| AlmaLinux:9 | bind9.18-dnssec-utils | 32:9.18.29-1.el9_5.1 | ALSA-2025:1670 |
| AlmaLinux:9 | bind9.18-doc | 32:9.18.29-1.el9_5.1 | ALSA-2025:1670 |
| AlmaLinux:9 | bind9.18-libs | 32:9.18.29-1.el9_5.1 | ALSA-2025:1670 |
| AlmaLinux:9 | bind9.18-utils | 32:9.18.29-1.el9_5.1 | ALSA-2025:1670 |
| Alpine:v3.20 | bind | 9.18.33-r0 | ALPINE-CVE-2024-12705 |
| Alpine:v3.21 | bind | 9.18.33-r0 | ALPINE-CVE-2024-12705 |
| Alpine:v3.22 | bind | 9.18.33-r0 | ALPINE-CVE-2024-12705 |
| Alpine:v3.23 | bind | 9.18.33-r0 | ALPINE-CVE-2024-12705 |
| Alpine:v3.24 | bind | 9.18.33-r0 | ALPINE-CVE-2024-12705 |
| Debian:12 | bind9 | 1:9.18.33-1~deb12u2 | DSA-5854-1 |
| Debian:12 | bind9 | 1:9.18.33-1~deb12u2 | DEBIAN-CVE-2024-12705 |
| Debian:13 | bind9 | 1:9.20.5-1 | DEBIAN-CVE-2024-12705 |
| Debian:14 | bind9 | 1:9.20.5-1 | DEBIAN-CVE-2024-12705 |
| Rocky Linux:9 | bind9.18 | 2:9.18.29-1.el9_5.1 | RLSA-2025:1670 |
| Ubuntu:22.04:LTS | bind9 | 1:9.18.30-0ubuntu0.22.04.2 | USN-7241-1 |
| Ubuntu:22.04:LTS | bind9 | 1:9.18.30-0ubuntu0.22.04.2 | UBUNTU-CVE-2024-12705 |
| Ubuntu:24.04:LTS | bind9 | 1:9.18.30-0ubuntu0.24.04.2 | USN-7241-1 |
| Ubuntu:24.04:LTS | bind9 | 1:9.18.30-0ubuntu0.24.04.2 | UBUNTU-CVE-2024-12705 |
| Ubuntu:22.04:LTS | bind9-libs | no fix listed | UBUNTU-CVE-2024-12705 |
| Ubuntu:24.04:LTS | isc-dhcp | no fix listed | UBUNTU-CVE-2024-12705 |
| Ubuntu:25.10 | isc-dhcp | no fix listed | UBUNTU-CVE-2024-12705 |
| Ubuntu:26.04:LTS | isc-dhcp | no fix listed | UBUNTU-CVE-2024-12705 |
Affected products (as reported)
Weakness: CWE-770 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H