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Fencer Vulns
high 7.5

CVE-2024-1975 json

SIG(0) can be used to exhaust CPU resources

published 2024-07-23 2 y ago modified 2026-06-17 4 mo ago also EUVD-2024-17692

cvss
7.5
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
2.1%
EPSS 2.1% chance of exploitation in 30 days, percentile 81%
public exploits
0
none known

Summary

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.

Patch / fix

  • isc bind 9.18.28, 9.18.28-S1, 9.20.0
  • bind9 Debian 12 1:9.18.28-1~deb12u1
  • bind9 Debian 14, Debian 13 1:9.20.0-1

debian advisories DEBIAN-CVE-2024-1975

  • bind9 Ubuntu 20.04 LTS 1:9.18.28-0ubuntu0.20.04.1
  • bind9 Ubuntu 22.04 LTS 1:9.18.28-0ubuntu0.22.04.1
  • bind9 Ubuntu 24.04 LTS 1:9.18.28-0ubuntu0.24.04.1
  • bind9 Ubuntu Pro 16.04 LTS 1:9.10.3.dfsg.P4-8ubuntu1.19+esm9
  • bind9 Ubuntu Pro 18.04 LTS 1:9.11.3+dfsg-1ubuntu1.19+esm4

ubuntu advisories UBUNTU-CVE-2024-1975

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • bind RHEL 8 32:9.11.36-16.el8_10.2
  • bind-sdb RHEL 8 32:9.11.36-16.el8_10.2
  • bind-libs RHEL 8 32:9.11.36-16.el8_10.2
  • bind-utils RHEL 8 32:9.11.36-16.el8_10.2
  • bind-chroot RHEL 8 32:9.11.36-16.el8_10.2
  • bind-pkcs11 RHEL 8 32:9.11.36-16.el8_10.2
  • bind-license RHEL 8 32:9.11.36-16.el8_10.2
  • python3-bind RHEL 8 32:9.11.36-16.el8_10.2

red hat advisories RHSA-2024:5894RHSA-2024:5871RHSA-2024:5838RHSA-2024:5813RHSA-2024:5655RHSA-2024:5524

  • bind SLES for SAP 12 SP5, SLES 12 SP5, SLE Software Development Kit 12 SP5 9.11.22-3.57.1
  • bind SLES for SAP 15 SP4, SLES 15 SP4-LTSS, SLE High Performance Computing 15 SP4-LTSS +3 more 9.16.50-150400.5.43.1
  • bind SLE Module for Server Applications 15 SP5, SLE Module for Basesystem 15 SP5, SLE Micro 5.5 +1 more 9.16.50-150500.8.21.1
  • bind SLES for SAP 15 SP2, SLES 15 SP2-LTSS, SLE High Performance Computing 15 SP2-LTSS +1 more 9.16.6-150000.12.77.1
  • bind SLES for SAP 15 SP3, SLES 15 SP3-LTSS, SLE Module for Basesystem 15 SP6 +2 more 9.16.6-150300.22.47.1
  • bind SLE Module for Server Applications 15 SP6, SLE Module for Basesystem 15 SP6, openSUSE Leap 15.6 9.18.28-150600.3.3.1

suse advisories SUSE-SU-2024:2868-1SUSE-SU-2024:2863-1SUSE-SU-2024:2862-1SUSE-SU-2024:2811-1SUSE-SU-2024:2810-1SUSE-SU-2024:2636-1

  • bind openSUSE Tumbleweed 9.20.0-1.1

opensuse advisories openSUSE-SU-2024:14217-1

  • bind AlmaLinux 8 32:9.11.36-16.el8_10.2
  • bind-sdb AlmaLinux 8 32:9.11.36-16.el8_10.2
  • bind-libs AlmaLinux 8 32:9.11.36-16.el8_10.2
  • bind-utils AlmaLinux 8 32:9.11.36-16.el8_10.2
  • bind-chroot AlmaLinux 8 32:9.11.36-16.el8_10.2
  • bind-pkcs11 AlmaLinux 8 32:9.11.36-16.el8_10.2
  • bind-license AlmaLinux 8 32:9.11.36-16.el8_10.2
  • python3-bind AlmaLinux 8 32:9.11.36-16.el8_10.2

almalinux advisories ALSA-2024:5524ALSA-2024:5231ALSA-2024:5390

  • bind9.16 Rocky Linux 8 2:9.16.23-0.22.el8_10
  • bind Rocky Linux 8 2:9.11.36-16.el8_10.2
  • bind Rocky Linux 9 2:9.16.23-18.el9_4.6
  • bind-dyndb-ldap Rocky Linux 9 11.9-10.el9_4

rocky linux advisories RLSA-2024:5390RLSA-2024:5524RLSA-2024:5231

  • bind Alpine 3.20, Alpine 3.19, Alpine 3.18 +1 more 9.18.31-r0
  • bind Alpine 3.24, Alpine 3.23, Alpine 3.22 +1 more 9.18.28-r0

alpine advisories ALPINE-CVE-2024-1975

Alpine secdb © Alpine Linux, from https://secdb.alpinelinux.org via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • bind Azure Linux 3.0 9.20.0-1
  • bind CBL-Mariner 2.0 9.16.50-1
  • dhcp CBL-Mariner 2.0 4.4.3.P1-2

azure linux advisories AZL-46969AZL-47000AZL-47039

Azure Linux vulnerability data, Copyright (c) Microsoft Corporation, from https://github.com/microsoft/AzureLinuxVulnerabilityData via OSV, under the MIT licence; changed: normalised to fixed package versions per release. MIT

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2024-1975 updated cvss 7.5

bind9: bind: SIG(0) can be used to exhaust CPU resources

  • Red Hat Enterprise Linux 10 bind
    affected: workaround, no fix available
  • Red Hat CodeReady Linux Builder EUS (v.8.8) bind9.16-libs 9.16.23-0.14.el8_8.5
    fixed: vendor fix RHSA-2024:5525
  • Red Hat CodeReady Linux Builder EUS (v.9.2) bind-libs 9.16.23-11.el9_2.5
    fixed: vendor fix RHSA-2024:5813
  • Red Hat Enterprise Linux AppStream (v. 8) bind 9.11.36-16.el8_10.2, bind-sdb 9.11.36-16.el8_10.2, bind9.16 9.16.23-0.22.el8_10, bind-libs 9.11.36-16.el8_10.2, bind-utils 9.11.36-16.el8_10.2, bind-chroot 9.11.36-16.el8_10.2, +13 more
    fixed: vendor fix RHSA-2024:5524
  • Red Hat Enterprise Linux AppStream (v. 9) bind 9.16.23-18.el9_4.6, bind-libs 9.16.23-18.el9_4.6, bind-dyndb-ldap 11.9-10.el9_4, bind-utils 9.16.23-18.el9_4.6, bind-chroot 9.16.23-18.el9_4.6, bind-license 9.16.23-18.el9_4.6, +2 more
    fixed: vendor fix RHSA-2024:5231
  • Red Hat Enterprise Linux AppStream AUS (v. 8.2) bind 9.11.13-6.el8_2.9, bind-sdb 9.11.13-6.el8_2.9, bind-libs 9.11.13-6.el8_2.9, bind-utils 9.11.13-6.el8_2.9, bind-chroot 9.11.13-6.el8_2.9, bind-pkcs11 9.11.13-6.el8_2.9, +6 more
    fixed: vendor fix RHSA-2024:5655
  • Red Hat Enterprise Linux AppStream AUS (v.8.4) bind 9.11.26-4.el8_4.6, bind-sdb 9.11.26-4.el8_4.6, bind-libs 9.11.26-4.el8_4.6, bind-utils 9.11.26-4.el8_4.6, bind-chroot 9.11.26-4.el8_4.6, bind-pkcs11 9.11.26-4.el8_4.6, +6 more
    fixed: vendor fix RHSA-2024:5871
  • Red Hat Enterprise Linux AppStream AUS (v.8.6) bind 9.11.36-3.el8_6.9, bind-sdb 9.11.36-3.el8_6.9, bind-libs 9.11.36-3.el8_6.9, bind-utils 9.11.36-3.el8_6.9, bind9.16 9.16.23-0.7.el8_6.6, bind-chroot 9.11.36-3.el8_6.9, +11 more
    fixed: vendor fix RHSA-2024:5908
show 28 more
  • Red Hat Enterprise Linux AppStream E4S (v.8.4) bind 9.11.26-4.el8_4.6, bind-sdb 9.11.26-4.el8_4.6, bind-libs 9.11.26-4.el8_4.6, bind-utils 9.11.26-4.el8_4.6, bind-chroot 9.11.26-4.el8_4.6, bind-pkcs11 9.11.26-4.el8_4.6, +6 more
    fixed: vendor fix RHSA-2024:5871
  • Red Hat Enterprise Linux AppStream E4S (v.8.6) bind 9.11.36-3.el8_6.9, bind-sdb 9.11.36-3.el8_6.9, bind-libs 9.11.36-3.el8_6.9, bind-utils 9.11.36-3.el8_6.9, bind9.16 9.16.23-0.7.el8_6.6, bind-chroot 9.11.36-3.el8_6.9, +11 more
    fixed: vendor fix RHSA-2024:5908
  • Red Hat Enterprise Linux AppStream E4S (v.9.0) bind 9.16.23-1.el9_0.7, bind-libs 9.16.23-1.el9_0.7, bind-utils 9.16.23-1.el9_0.7, bind-chroot 9.16.23-1.el9_0.7, bind-dyndb-ldap 11.9-7.el9_0.3, bind-license 9.16.23-1.el9_0.7, +2 more
    fixed: vendor fix RHSA-2024:5907
  • Red Hat Enterprise Linux AppStream EUS (v.8.8) bind 9.11.36-8.el8_8.6, bind-sdb 9.11.36-8.el8_8.6, bind-libs 9.11.36-8.el8_8.6, bind-utils 9.11.36-8.el8_8.6, bind-chroot 9.11.36-8.el8_8.6, bind-pkcs11 9.11.36-8.el8_8.6, +13 more
    fixed: vendor fix RHSA-2024:5838
  • Red Hat Enterprise Linux AppStream EUS (v.9.2) bind 9.16.23-11.el9_2.5, bind-libs 9.16.23-11.el9_2.5, bind-utils 9.16.23-11.el9_2.5, bind-chroot 9.16.23-11.el9_2.5, bind-dyndb-ldap 11.9-8.el9_2.3, bind-license 9.16.23-11.el9_2.5, +2 more
    fixed: vendor fix RHSA-2024:5813
  • Red Hat Enterprise Linux AppStream TUS (v.8.4) bind 9.11.26-4.el8_4.6, bind-sdb 9.11.26-4.el8_4.6, bind-libs 9.11.26-4.el8_4.6, bind-utils 9.11.26-4.el8_4.6, bind-chroot 9.11.26-4.el8_4.6, bind-pkcs11 9.11.26-4.el8_4.6, +6 more
    fixed: vendor fix RHSA-2024:5871
  • Red Hat Enterprise Linux AppStream TUS (v.8.6) bind 9.11.36-3.el8_6.9, bind-sdb 9.11.36-3.el8_6.9, bind-libs 9.11.36-3.el8_6.9, bind-utils 9.11.36-3.el8_6.9, bind9.16 9.16.23-0.7.el8_6.6, bind-chroot 9.11.36-3.el8_6.9, +11 more
    fixed: vendor fix RHSA-2024:5908
  • Red Hat Enterprise Linux BaseOS (v. 8) bind 9.11.36-16.el8_10.2, bind-export-libs 9.11.36-16.el8_10.2
    fixed: vendor fix RHSA-2024:5524
  • Red Hat Enterprise Linux BaseOS AUS (v. 8.2) bind 9.11.13-6.el8_2.9, bind-export-libs 9.11.13-6.el8_2.9
    fixed: vendor fix RHSA-2024:5655
  • Red Hat Enterprise Linux BaseOS AUS (v.8.4) bind 9.11.26-4.el8_4.6, bind-export-libs 9.11.26-4.el8_4.6
    fixed: vendor fix RHSA-2024:5871
  • Red Hat Enterprise Linux BaseOS AUS (v.8.6) bind 9.11.36-3.el8_6.9, bind-export-libs 9.11.36-3.el8_6.9
    fixed: vendor fix RHSA-2024:5908
  • Red Hat Enterprise Linux BaseOS E4S (v.8.4) bind 9.11.26-4.el8_4.6, bind-export-libs 9.11.26-4.el8_4.6
    fixed: vendor fix RHSA-2024:5871
  • Red Hat Enterprise Linux BaseOS E4S (v.8.6) bind 9.11.36-3.el8_6.9, bind-export-libs 9.11.36-3.el8_6.9
    fixed: vendor fix RHSA-2024:5908
  • Red Hat Enterprise Linux BaseOS EUS (v.8.8) bind 9.11.36-8.el8_8.6, bind-export-libs 9.11.36-8.el8_8.6
    fixed: vendor fix RHSA-2024:5838
  • Red Hat Enterprise Linux BaseOS TUS (v.8.4) bind 9.11.26-4.el8_4.6, bind-export-libs 9.11.26-4.el8_4.6
    fixed: vendor fix RHSA-2024:5871
  • Red Hat Enterprise Linux BaseOS TUS (v.8.6) bind 9.11.36-3.el8_6.9, bind-export-libs 9.11.36-3.el8_6.9
    fixed: vendor fix RHSA-2024:5908
  • Red Hat Enterprise Linux CRB (v. 8) bind9.16-libs 9.16.23-0.22.el8_10
    fixed: vendor fix RHSA-2024:5390
  • Red Hat Enterprise Linux CRB (v. 9) bind-libs 9.16.23-18.el9_4.6
    fixed: vendor fix RHSA-2024:5231
  • Red Hat Enterprise Linux Server (v. 7 ELS) bind 9.11.4-26.P2.el7_9.17, bind-libs 9.11.4-26.P2.el7_9.17, bind-utils 9.11.4-26.P2.el7_9.17, bind-chroot 9.11.4-26.P2.el7_9.17, bind-pkcs11 9.11.4-26.P2.el7_9.17, bind-license 9.11.4-26.P2.el7_9.17, +4 more
    fixed: vendor fix RHSA-2024:5930
  • Red Hat Enterprise Linux Server AUS (v. 7.7) bind 9.11.4-9.P2.el7_7.7, bind-libs 9.11.4-9.P2.el7_7.7, bind-utils 9.11.4-9.P2.el7_7.7, bind-chroot 9.11.4-9.P2.el7_7.7, bind-pkcs11 9.11.4-9.P2.el7_7.7, bind-license 9.11.4-9.P2.el7_7.7, +4 more
    fixed: vendor fix RHSA-2024:5894
  • Red Hat Enterprise Linux Server Optional (v. 7 ELS) bind-sdb 9.11.4-26.P2.el7_9.17, bind-sdb-chroot 9.11.4-26.P2.el7_9.17
    fixed: vendor fix RHSA-2024:5930
  • Red Hat Enterprise Linux Server Optional AUS (v. 7.7) bind-sdb 9.11.4-9.P2.el7_7.7, bind-sdb-chroot 9.11.4-9.P2.el7_7.7
    fixed: vendor fix RHSA-2024:5894
  • Red Hat OpenShift Container Platform 4.12 rhcos 412.86.202409111316-0
    fixed: vendor fix RHSA-2024:6642
  • Red Hat OpenShift Container Platform 4.13 rhcos 413.92.202408270922-0
    fixed: vendor fix RHSA-2024:6009
  • Red Hat OpenShift Container Platform 4.14 rhcos 414.92.202409041930-0
    fixed: vendor fix RHSA-2024:6406
  • Red Hat OpenShift Container Platform 4.15 rhcos 415.92.202408271217-0
    fixed: vendor fix RHSA-2024:6013
  • Red Hat OpenShift Container Platform 4.16 rhcos 416.94.202408260940-0
    fixed: vendor fix RHSA-2024:6004
  • Red Hat Enterprise Linux 6 bind, bind-sdb, bind-libs, bind-utils, bind-chroot Red Hat Enterprise Linux 9 dhcp, bind9.18, dhcp-relay, dhcp-client, dhcp-common, dhcp-server, +4 more Red Hat OpenShift Container Platform 4.12 openshift4/ose-cli v4.12.0-202408271831.p0.gd691257.assembly.stream.el8, openshift4/ose-pod v4.12.0-202408271831.p0.g1eb8682.assembly.stream.el8, openshift4/ose-etcd v4.12.0-202408271831.p0.gbb82e89.assembly.stream.el8, openshift4/ose-tests v4.12.0-202409111300.p0.g7b7d4ef.assembly.stream.el8, openshift4/ose-console v4.12.0-202409111300.p0.g38227bc.assembly.stream.el8, openshift4/ose-coredns v4.12.0-202408271831.p0.gcc1194e.assembly.stream.el8, +176 more Red Hat OpenShift Container Platform 4.13 openshift4/ose-cli v4.13.0-202408260940.p0.gd192e90.assembly.stream.el8, openshift4/ose-pod v4.13.0-202408260940.p0.ge0953cc.assembly.stream.el8, openshift4/ose-tests v4.13.0-202408260940.p0.gaedd6b8.assembly.stream.el8, openshift4/ose-console v4.13.0-202408260940.p0.g62a2dbc.assembly.stream.el8, openshift4/ose-coredns v4.13.0-202408260940.p0.ge70f097.assembly.stream.el8, openshift4/ose-deployer v4.13.0-202408260940.p0.gd192e90.assembly.stream.el8, +186 more Red Hat OpenShift Container Platform 4.14 openshift4/ose-cli v4.14.0-202408260910.p0.g44b3ac2.assembly.stream.el8, openshift4/ose-pod v4.14.0-202409041843.p0.g03a907c.assembly.stream.el8, openshift4/ose-tests v4.14.0-202408260910.p0.g3a80e94.assembly.stream.el8, openshift4/ose-console v4.14.0-202409051039.p0.gbeb6e56.assembly.stream.el8, openshift4/ose-coredns v4.14.0-202408260910.p0.gfdd6037.assembly.stream.el8, openshift4/ose-deployer v4.14.0-202408260910.p0.g44b3ac2.assembly.stream.el8, +193 more
    not affected: vulnerable code not present

2 more not affected in the full advisory

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

CISA SSVC

Exploitation
none
Automatable
yes
Technical impact
partial
Assessed
2 y ago

Exploit prediction

2.11% chance of exploitation in the next 30 days, higher than 81% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected products

  • ISC BIND 9
  • isc bind

Classification

Weakness
  • CWE-770 Allocation of Resources Without Limits or Throttling

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

CPEs and fixed versions use Anchore's correction of NVD's data: Added CPE configurations because not yet analyzed by NVD.