Vulnerability · Published Jul 23, 2024 · Assigned by isc
CVE-2024-1975SIG(0) can be used to exhaust CPU resources
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 2.1% (higher than 82% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS 3.1)7.5High
Exploit odds (30 days)2.1%top 18.1% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
If a server hosts a zone containing a "KEY" Resource Record, or a resolver DNSSEC-validates a "KEY" Resource Record from a DNSSEC-signed domain in cache, a client can exhaust resolver CPU resources by sending a stream of SIG(0) signed requests. This issue affects BIND 9 versions 9.0.0 through 9.11.37, 9.16.0 through 9.16.50, 9.18.0 through 9.18.27, 9.19.0 through 9.19.24, 9.9.3-S1 through 9.11.37-S1, 9.16.8-S1 through 9.16.49-S1, and 9.18.11-S1 through 9.18.27-S1.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| AlmaLinux:8 | bind | 32:9.11.36-16.el8_10.2 | ALSA-2024:5524 |
| AlmaLinux:9 | bind | 32:9.16.23-18.el9_4.6 | ALSA-2024:5231 |
| AlmaLinux:8 | bind-chroot | 32:9.11.36-16.el8_10.2 | ALSA-2024:5524 |
| AlmaLinux:9 | bind-chroot | 32:9.16.23-18.el9_4.6 | ALSA-2024:5231 |
| AlmaLinux:8 | bind-devel | 32:9.11.36-16.el8_10.2 | ALSA-2024:5524 |
| AlmaLinux:9 | bind-devel | 32:9.16.23-18.el9_4.6 | ALSA-2024:5231 |
| AlmaLinux:9 | bind-dnssec-doc | 32:9.16.23-18.el9_4.6 | ALSA-2024:5231 |
| AlmaLinux:9 | bind-dnssec-utils | 32:9.16.23-18.el9_4.6 | ALSA-2024:5231 |
| AlmaLinux:9 | bind-doc | 32:9.16.23-18.el9_4.6 | ALSA-2024:5231 |
| AlmaLinux:9 | bind-dyndb-ldap | 11.9-10.el9_4.alma.1 | ALSA-2024:5231 |
| AlmaLinux:8 | bind-export-devel | 32:9.11.36-16.el8_10.2 | ALSA-2024:5524 |
| AlmaLinux:8 | bind-export-libs | 32:9.11.36-16.el8_10.2 | ALSA-2024:5524 |
| AlmaLinux:8 | bind-libs | 32:9.11.36-16.el8_10.2 | ALSA-2024:5524 |
| AlmaLinux:9 | bind-libs | 32:9.16.23-18.el9_4.6 | ALSA-2024:5231 |
| AlmaLinux:8 | bind-libs-lite | 32:9.11.36-16.el8_10.2 | ALSA-2024:5524 |
| AlmaLinux:8 | bind-license | 32:9.11.36-16.el8_10.2 | ALSA-2024:5524 |
| AlmaLinux:9 | bind-license | 32:9.16.23-18.el9_4.6 | ALSA-2024:5231 |
| AlmaLinux:8 | bind-lite-devel | 32:9.11.36-16.el8_10.2 | ALSA-2024:5524 |
| AlmaLinux:8 | bind-pkcs11 | 32:9.11.36-16.el8_10.2 | ALSA-2024:5524 |
| AlmaLinux:8 | bind-pkcs11-devel | 32:9.11.36-16.el8_10.2 | ALSA-2024:5524 |
| AlmaLinux:8 | bind-pkcs11-libs | 32:9.11.36-16.el8_10.2 | ALSA-2024:5524 |
| AlmaLinux:8 | bind-pkcs11-utils | 32:9.11.36-16.el8_10.2 | ALSA-2024:5524 |
| AlmaLinux:8 | bind-sdb | 32:9.11.36-16.el8_10.2 | ALSA-2024:5524 |
| AlmaLinux:8 | bind-sdb-chroot | 32:9.11.36-16.el8_10.2 | ALSA-2024:5524 |
| AlmaLinux:8 | bind-utils | 32:9.11.36-16.el8_10.2 | ALSA-2024:5524 |
| AlmaLinux:9 | bind-utils | 32:9.16.23-18.el9_4.6 | ALSA-2024:5231 |
| AlmaLinux:8 | bind9.16 | 32:9.16.23-0.22.el8_10 | ALSA-2024:5390 |
| AlmaLinux:8 | bind9.16-chroot | 32:9.16.23-0.22.el8_10 | ALSA-2024:5390 |
| AlmaLinux:8 | bind9.16-devel | 32:9.16.23-0.22.el8_10 | ALSA-2024:5390 |
| AlmaLinux:8 | bind9.16-dnssec-utils | 32:9.16.23-0.22.el8_10 | ALSA-2024:5390 |
| AlmaLinux:8 | bind9.16-doc | 32:9.16.23-0.22.el8_10 | ALSA-2024:5390 |
| AlmaLinux:8 | bind9.16-libs | 32:9.16.23-0.22.el8_10 | ALSA-2024:5390 |
| AlmaLinux:8 | bind9.16-license | 32:9.16.23-0.22.el8_10 | ALSA-2024:5390 |
| AlmaLinux:8 | bind9.16-utils | 32:9.16.23-0.22.el8_10 | ALSA-2024:5390 |
| AlmaLinux:8 | python3-bind | 32:9.11.36-16.el8_10.2 | ALSA-2024:5524 |
| AlmaLinux:9 | python3-bind | 32:9.16.23-18.el9_4.6 | ALSA-2024:5231 |
| AlmaLinux:8 | python3-bind9.16 | 32:9.16.23-0.22.el8_10 | ALSA-2024:5390 |
| Alpine:v3.20 | bind | 9.18.31-r0 | ALPINE-CVE-2024-1975 |
| Alpine:v3.21 | bind | 9.18.28-r0 | ALPINE-CVE-2024-1975 |
| Alpine:v3.22 | bind | 9.18.28-r0 | ALPINE-CVE-2024-1975 |
| Alpine:v3.23 | bind | 9.18.28-r0 | ALPINE-CVE-2024-1975 |
| Alpine:v3.24 | bind | 9.18.28-r0 | ALPINE-CVE-2024-1975 |
| Debian:12 | bind9 | 1:9.18.28-1~deb12u1 | DSA-5734-1 |
| Debian:12 | bind9 | 1:9.18.28-1~deb12u1 | DEBIAN-CVE-2024-1975 |
| Debian:13 | bind9 | 1:9.20.0-1 | DEBIAN-CVE-2024-1975 |
| Debian:14 | bind9 | 1:9.20.0-1 | DEBIAN-CVE-2024-1975 |
| Rocky Linux:8 | bind | 2:9.11.36-16.el8_10.2 | RLSA-2024:5524 |
| Rocky Linux:9 | bind | 2:9.16.23-18.el9_4.6 | RLSA-2024:5231 |
| Rocky Linux:9 | bind-dyndb-ldap | 0:11.9-10.el9_4 | RLSA-2024:5231 |
| Rocky Linux:8 | bind9.16 | 2:9.16.23-0.22.el8_10 | RLSA-2024:5390 |
| Ubuntu:22.04:LTS | bind9 | 1:9.18.28-0ubuntu0.22.04.1 | USN-6909-1 |
| Ubuntu:22.04:LTS | bind9 | 1:9.18.28-0ubuntu0.22.04.1 | UBUNTU-CVE-2024-1975 |
| Ubuntu:24.04:LTS | bind9 | 1:9.18.28-0ubuntu0.24.04.1 | UBUNTU-CVE-2024-1975 |
| Ubuntu:24.04:LTS | bind9 | 1:9.18.28-0ubuntu0.24.04.1 | USN-6909-1 |
| Ubuntu:22.04:LTS | bind9-libs | no fix listed | UBUNTU-CVE-2024-1975 |
| Ubuntu:24.04:LTS | isc-dhcp | no fix listed | UBUNTU-CVE-2024-1975 |
| Ubuntu:25.10 | isc-dhcp | no fix listed | UBUNTU-CVE-2024-1975 |
| Ubuntu:26.04:LTS | isc-dhcp | no fix listed | UBUNTU-CVE-2024-1975 |
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