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TI-2024-01838 Aliases CVE-2024-1975GHSA-xv2w-3fww-7hvf

SIG(0) can be used to exhaust CPU resources

Priority MEDIUM 43CWE-770Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Denial of service
Confidentiality · integrity · availability
None · None · High
Fix status
Partial Red Hat: 34 fixed, 1 without a fix

Attack profile from CVSS 3.1 · CNA. Fix status from CNA and Red Hat. Impact type from CWE-770.

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.02114 81st percentileScored 2026-11-07
Fix Partial Red Hat: 18 advisoriesRed Hat: 34 fixed, 1 without a fix

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
Yes
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
ISCBIND 99.0.0 – 9.11.37; 9.16.0 – 9.16.50; 9.18.0 – 9.18.27; 9.19.0 – 9.19.24; 9.9.3-S1 – 9.11.37-S1; 9.16.8-S1 – 9.16.49-S1; 9.18.11-S1 – 9.18.27-S1—No fix listedCNA
  • BIND 9 VendorISC Affected 9.0.0 – 9.11.37; 9.16.0 – 9.16.50; 9.18.0 – 9.18.27; 9.19.0 – 9.19.24; 9.9.3-S1 – 9.11.37-S1; 9.16.8-S1 – 9.16.49-S1; 9.18.11-S1 – 9.18.27-S1 Fixed in — No fix listed CNA

CPE names CISA-ADP · 7

CPEVersionsRoleVendor
cpe:2.3:a:isc:bind:9.0:*:*:*:*:*:*:*9.0—ISC
cpe:2.3:a:isc:bind:9.16.0:*:*:*:*:*:*:*9.16.0—ISC
cpe:2.3:a:isc:bind:9.16.8:s1:*:*:*:*:*:*9.16.8 s1—ISC
cpe:2.3:a:isc:bind:9.18.0:*:*:*:-:*:*:*9.18.0—ISC
cpe:2.3:a:isc:bind:9.18.11:s1:*:*:supported_preview:*:*:*9.18.11 s1—ISC
cpe:2.3:a:isc:bind:9.19.0:*:*:*:-:*:*:*9.19.0—ISC
cpe:2.3:a:isc:bind:9.9.3:s1:*:*:*:*:*:*9.9.3 s1—ISC
  • cpe:2.3:a:isc:bind:9.0:*:*:*:*:*:*:* Versions 9.0 — ·ISC
  • cpe:2.3:a:isc:bind:9.16.0:*:*:*:*:*:*:* Versions 9.16.0 — ·ISC
  • cpe:2.3:a:isc:bind:9.16.8:s1:*:*:*:*:*:* Versions 9.16.8 s1 — ·ISC
  • cpe:2.3:a:isc:bind:9.18.0:*:*:*:-:*:*:* Versions 9.18.0 — ·ISC
  • cpe:2.3:a:isc:bind:9.18.11:s1:*:*:supported_preview:*:*:* Versions 9.18.11 s1 — ·ISC
  • cpe:2.3:a:isc:bind:9.19.0:*:*:*:-:*:*:* Versions 9.19.0 — ·ISC
  • cpe:2.3:a:isc:bind:9.9.3:s1:*:*:*:*:*:* Versions 9.9.3 s1 — ·ISC

Remediation

Red Hat 18 advisories

  • RHSA-2024:6642 Released 2024-09-18 · Red Hat rating Important
    OpenShift Container Platform 4.12.65 bug fix and security update
    • Red Hat OpenShift Container Platform 4.12 openshift4/ose-installer, openshift4/ose-oauth-apiserver-rhel8, rhcos
  • RHSA-2024:6406 Released 2024-09-11 · Red Hat rating Important
    OpenShift Container Platform 4.14.36 security update
    • Red Hat OpenShift Container Platform 4.14 openshift4/cloud-network-config-controller-rhel8, openshift4/driver-toolkit-rhel9, openshift4/egress-router-cni-rhel8 +47
  • RHSA-2024:6013 Released 2024-09-05 · Red Hat rating Important
    OpenShift Container Platform 4.15.30 bug fix and security update
    • Red Hat OpenShift Container Platform 4.15 openshift4/ose-console, rhcos
Show 15 more Red Hat advisories
  • RHSA-2024:6009 Released 2024-09-04 · Red Hat rating Important
    OpenShift Container Platform 4.13.49 bug fix and security update
    • Red Hat OpenShift Container Platform 4.13 openshift4/ose-coredns, openshift4/ose-installer, openshift4/ose-oauth-apiserver-rhel8 +1
  • RHSA-2024:6004 Released 2024-09-03 · Red Hat rating Important
    OpenShift Container Platform 4.16.10 bug fix and security update
    • Red Hat OpenShift Container Platform 4.16 openshift4/ose-cluster-baremetal-operator-rhel9, openshift4/ose-csi-driver-manila-rhel9, openshift4/ose-hypershift-rhel9 +2
  • RHSA-2024:5930 Released 2024-08-28 · Red Hat rating Important
    bind security update
    • Red Hat Enterprise Linux Server (v. 7 ELS) bind-32:9.11.4-26.P2.el7_9.17, bind-chroot-32:9.11.4-26.P2.el7_9.17, bind-export-libs-32:9.11.4-26.P2.el7_9.17 +11
    • Red Hat Enterprise Linux Server Optional (v. 7 ELS) bind-devel-32:9.11.4-26.P2.el7_9.17, bind-devel-32:9.11.4-26.P2.el7_9.17.ppc, bind-export-devel-32:9.11.4-26.P2.el7_9.17 +7
  • RHSA-2024:5908 Released 2024-08-27 · Red Hat rating Important
    bind security update
    • Red Hat Enterprise Linux AppStream AUS (v.8.6) bind-32:9.11.36-3.el8_6.9, bind-chroot-32:9.11.36-3.el8_6.9, bind-devel-32:9.11.36-3.el8_6.9 +12
    • Red Hat Enterprise Linux AppStream E4S (v.8.6) bind-32:9.11.36-3.el8_6.9, bind-chroot-32:9.11.36-3.el8_6.9, bind-devel-32:9.11.36-3.el8_6.9 +12
    • Red Hat Enterprise Linux AppStream TUS (v.8.6) bind-32:9.11.36-3.el8_6.9, bind-chroot-32:9.11.36-3.el8_6.9, bind-devel-32:9.11.36-3.el8_6.9 +12
    • Red Hat Enterprise Linux BaseOS AUS (v.8.6) bind-32:9.11.36-3.el8_6.9, bind-export-devel-32:9.11.36-3.el8_6.9, bind-export-libs-32:9.11.36-3.el8_6.9
    • Red Hat Enterprise Linux BaseOS E4S (v.8.6) bind-32:9.11.36-3.el8_6.9, bind-export-devel-32:9.11.36-3.el8_6.9, bind-export-libs-32:9.11.36-3.el8_6.9
    • Red Hat Enterprise Linux BaseOS TUS (v.8.6) bind-32:9.11.36-3.el8_6.9, bind-export-devel-32:9.11.36-3.el8_6.9, bind-export-libs-32:9.11.36-3.el8_6.9
  • RHSA-2024:5907 Released 2024-08-27 · Red Hat rating Important
    bind and bind-dyndb-ldap security update
    • Red Hat Enterprise Linux AppStream E4S (v.9.0) bind-32:9.16.23-1.el9_0.7, bind-chroot-32:9.16.23-1.el9_0.7, bind-dnssec-doc-32:9.16.23-1.el9_0.7 +6
  • RHSA-2024:5894 Released 2024-08-27 · Red Hat rating Important
    bind security update
    • Red Hat Enterprise Linux Server AUS (v. 7.7) bind-32:9.11.4-9.P2.el7_7.7, bind-chroot-32:9.11.4-9.P2.el7_7.7, bind-export-libs-32:9.11.4-9.P2.el7_7.7 +7
    • Red Hat Enterprise Linux Server Optional AUS (v. 7.7) bind-devel-32:9.11.4-9.P2.el7_7.7, bind-export-devel-32:9.11.4-9.P2.el7_7.7, bind-lite-devel-32:9.11.4-9.P2.el7_7.7 +3
  • RHSA-2024:5871 Released 2024-08-26 · Red Hat rating Important
    bind security update
    • Red Hat Enterprise Linux AppStream AUS (v.8.4) bind-32:9.11.26-4.el8_4.6, bind-chroot-32:9.11.26-4.el8_4.6, bind-devel-32:9.11.26-4.el8_4.6 +12
    • Red Hat Enterprise Linux AppStream E4S (v.8.4) bind-32:9.11.26-4.el8_4.6, bind-chroot-32:9.11.26-4.el8_4.6, bind-devel-32:9.11.26-4.el8_4.6 +12
    • Red Hat Enterprise Linux AppStream TUS (v.8.4) bind-32:9.11.26-4.el8_4.6, bind-chroot-32:9.11.26-4.el8_4.6, bind-devel-32:9.11.26-4.el8_4.6 +12
    • Red Hat Enterprise Linux BaseOS AUS (v.8.4) bind-32:9.11.26-4.el8_4.6, bind-export-devel-32:9.11.26-4.el8_4.6, bind-export-libs-32:9.11.26-4.el8_4.6
    • Red Hat Enterprise Linux BaseOS E4S (v.8.4) bind-32:9.11.26-4.el8_4.6, bind-export-devel-32:9.11.26-4.el8_4.6, bind-export-libs-32:9.11.26-4.el8_4.6
    • Red Hat Enterprise Linux BaseOS TUS (v.8.4) bind-32:9.11.26-4.el8_4.6, bind-export-devel-32:9.11.26-4.el8_4.6, bind-export-libs-32:9.11.26-4.el8_4.6
  • RHSA-2024:5838 Released 2024-08-26 · Red Hat rating Important
    bind security update
    • Red Hat Enterprise Linux AppStream EUS (v.8.8) bind-32:9.11.36-8.el8_8.6, bind-chroot-32:9.11.36-8.el8_8.6, bind-devel-32:9.11.36-8.el8_8.6 +12
    • Red Hat Enterprise Linux BaseOS EUS (v.8.8) bind-32:9.11.36-8.el8_8.6, bind-export-devel-32:9.11.36-8.el8_8.6, bind-export-libs-32:9.11.36-8.el8_8.6
  • RHSA-2024:5813 Released 2024-08-26 · Red Hat rating Important
    bind and bind-dyndb-ldap security update
    • Red Hat CodeReady Linux Builder EUS (v.9.2) bind-devel-32:9.16.23-11.el9_2.5, bind-doc-32:9.16.23-11.el9_2.5, bind-libs-32:9.16.23-11.el9_2.5
    • Red Hat Enterprise Linux AppStream EUS (v.9.2) bind-32:9.16.23-11.el9_2.5, bind-chroot-32:9.16.23-11.el9_2.5, bind-dnssec-doc-32:9.16.23-11.el9_2.5 +6
  • RHSA-2024:5655 Released 2024-08-20 · Red Hat rating Important
    bind security update
    • Red Hat Enterprise Linux AppStream AUS (v. 8.2) bind-32:9.11.13-6.el8_2.9, bind-chroot-32:9.11.13-6.el8_2.9, bind-devel-32:9.11.13-6.el8_2.9 +12
    • Red Hat Enterprise Linux BaseOS AUS (v. 8.2) bind-32:9.11.13-6.el8_2.9, bind-export-devel-32:9.11.13-6.el8_2.9, bind-export-libs-32:9.11.13-6.el8_2.9
  • RHSA-2024:5524 Released 2024-08-19 · Red Hat rating Important
    bind security update
    • Red Hat Enterprise Linux AppStream (v. 8) bind-32:9.11.36-16.el8_10.2, bind-chroot-32:9.11.36-16.el8_10.2, bind-devel-32:9.11.36-16.el8_10.2 +12
    • Red Hat Enterprise Linux BaseOS (v. 8) bind-32:9.11.36-16.el8_10.2, bind-export-devel-32:9.11.36-16.el8_10.2, bind-export-libs-32:9.11.36-16.el8_10.2
  • RHSA-2024:5525 Released 2024-08-19 · Red Hat rating Important
    bind9.16 security update
    • Red Hat CodeReady Linux Builder EUS (v.8.8) bind9.16-devel-32:9.16.23-0.14.el8_8.5, bind9.16-doc-32:9.16.23-0.14.el8_8.5, bind9.16-libs-32:9.16.23-0.14.el8_8.5
    • Red Hat Enterprise Linux AppStream EUS (v.8.8) bind9.16-32:9.16.23-0.14.el8_8.5, bind9.16-chroot-32:9.16.23-0.14.el8_8.5, bind9.16-dnssec-utils-32:9.16.23-0.14.el8_8.5 +4
  • RHSA-2024:5231 Released 2024-08-15 · Red Hat rating Important
    bind and bind-dyndb-ldap security update
    • Red Hat Enterprise Linux AppStream (v. 9) bind-32:9.16.23-18.el9_4.6, bind-chroot-32:9.16.23-18.el9_4.6, bind-dnssec-doc-32:9.16.23-18.el9_4.6 +6
    • Red Hat Enterprise Linux CRB (v. 9) bind-devel-32:9.16.23-18.el9_4.6, bind-doc-32:9.16.23-18.el9_4.6, bind-libs-32:9.16.23-18.el9_4.6
  • RHSA-2024:5418 Released 2024-08-15 · Red Hat rating Important
    bind9.16 security update
    • Red Hat Enterprise Linux AppStream AUS (v.8.6) bind9.16-32:9.16.23-0.7.el8_6.6, bind9.16-chroot-32:9.16.23-0.7.el8_6.6, bind9.16-libs-32:9.16.23-0.7.el8_6.6 +2
    • Red Hat Enterprise Linux AppStream E4S (v.8.6) bind9.16-32:9.16.23-0.7.el8_6.6, bind9.16-chroot-32:9.16.23-0.7.el8_6.6, bind9.16-libs-32:9.16.23-0.7.el8_6.6 +2
    • Red Hat Enterprise Linux AppStream TUS (v.8.6) bind9.16-32:9.16.23-0.7.el8_6.6, bind9.16-chroot-32:9.16.23-0.7.el8_6.6, bind9.16-libs-32:9.16.23-0.7.el8_6.6 +2
  • RHSA-2024:5390 Released 2024-08-14 · Red Hat rating Important
    bind9.16 security update
    • Red Hat Enterprise Linux AppStream (v. 8) bind9.16-32:9.16.23-0.22.el8_10, bind9.16-chroot-32:9.16.23-0.22.el8_10, bind9.16-dnssec-utils-32:9.16.23-0.22.el8_10 +4
    • Red Hat Enterprise Linux CRB (v. 8) bind9.16-devel-32:9.16.23-0.22.el8_10, bind9.16-doc-32:9.16.23-0.22.el8_10, bind9.16-libs-32:9.16.23-0.22.el8_10

Vendor assessments

Red Hat

Red Hat rating: Important. Red Hat's page for this CVE →

ProductStatusPlan or fix
Red Hat Enterprise Linux 10AffectedNo fix yet
Red Hat CodeReady Linux Builder EUS (v.8.8)Fixed RHSA-2024:5525
Red Hat CodeReady Linux Builder EUS (v.9.2)Fixed RHSA-2024:5813
Red Hat Enterprise Linux AppStream (v. 8)Fixed RHSA-2024:5390, RHSA-2024:5524
Red Hat Enterprise Linux AppStream (v. 9)Fixed RHSA-2024:5231
Red Hat Enterprise Linux AppStream AUS (v. 8.2)Fixed RHSA-2024:5655
Red Hat Enterprise Linux AppStream AUS (v.8.4)Fixed RHSA-2024:5871
Red Hat Enterprise Linux AppStream AUS (v.8.6)Fixed RHSA-2024:5418, RHSA-2024:5908
Red Hat Enterprise Linux AppStream E4S (v.8.4)Fixed RHSA-2024:5871
Red Hat Enterprise Linux AppStream E4S (v.8.6)Fixed RHSA-2024:5418, RHSA-2024:5908
Red Hat Enterprise Linux AppStream E4S (v.9.0)Fixed RHSA-2024:5907
Red Hat Enterprise Linux AppStream EUS (v.8.8)Fixed RHSA-2024:5525, RHSA-2024:5838
Red Hat Enterprise Linux AppStream EUS (v.9.2)Fixed RHSA-2024:5813
Red Hat Enterprise Linux AppStream TUS (v.8.4)Fixed RHSA-2024:5871
Red Hat Enterprise Linux AppStream TUS (v.8.6)Fixed RHSA-2024:5418, RHSA-2024:5908
Red Hat Enterprise Linux BaseOS (v. 8)Fixed RHSA-2024:5524
Red Hat Enterprise Linux BaseOS AUS (v. 8.2)Fixed RHSA-2024:5655
Red Hat Enterprise Linux BaseOS AUS (v.8.4)Fixed RHSA-2024:5871
Red Hat Enterprise Linux BaseOS AUS (v.8.6)Fixed RHSA-2024:5908
Red Hat Enterprise Linux BaseOS E4S (v.8.4)Fixed RHSA-2024:5871
Red Hat Enterprise Linux BaseOS E4S (v.8.6)Fixed RHSA-2024:5908
Red Hat Enterprise Linux BaseOS EUS (v.8.8)Fixed RHSA-2024:5838
Red Hat Enterprise Linux BaseOS TUS (v.8.4)Fixed RHSA-2024:5871
Red Hat Enterprise Linux BaseOS TUS (v.8.6)Fixed RHSA-2024:5908
Red Hat Enterprise Linux CRB (v. 8)Fixed RHSA-2024:5390
Red Hat Enterprise Linux CRB (v. 9)Fixed RHSA-2024:5231
Red Hat Enterprise Linux Server (v. 7 ELS)Fixed RHSA-2024:5930
Red Hat Enterprise Linux Server AUS (v. 7.7)Fixed RHSA-2024:5894
Red Hat Enterprise Linux Server Optional (v. 7 ELS)Fixed RHSA-2024:5930
Red Hat Enterprise Linux Server Optional AUS (v. 7.7)Fixed RHSA-2024:5894
Red Hat OpenShift Container Platform 4.12Fixed RHSA-2024:6642
Red Hat OpenShift Container Platform 4.13Fixed RHSA-2024:6009
Red Hat OpenShift Container Platform 4.14Fixed RHSA-2024:6406
Red Hat OpenShift Container Platform 4.15Fixed RHSA-2024:6013
Red Hat OpenShift Container Platform 4.16Fixed RHSA-2024:6004
Not affected: 7 products
  • Red Hat Enterprise Linux 6
  • Red Hat Enterprise Linux 9
  • Red Hat OpenShift Container Platform 4.12
  • Red Hat OpenShift Container Platform 4.13
  • Red Hat OpenShift Container Platform 4.14
  • Red Hat OpenShift Container Platform 4.15
  • Red Hat OpenShift Container Platform 4.16

Timeline

  1. 2026-10-02 Threatist record created from CVE-2024-1975
  2. 2026-10-03 Alias added: GHSA-xv2w-3fww-7hvf
  3. 2026-10-13 Affected versions changed · Red Hat

References

Advisory 1

Other 2

  • TI-2015-04610 Assertion failure in ISC BIND named via TKEY queries KEVCVSS 3.1HIGH 7.5
  • TI-2023-27571 Certain DNSSEC aspects of the DNS protocol (in RFC 4033, 4034, 4035, 6840, and related… CVSS 3.1HIGH 7.5
  • TI-2021-07476 A second vulnerability in BIND's GSSAPI security policy negotiation can be targeted by a buffer overflow attack CVSS 3.1CRITICAL 9.8
  • TI-1999-00042 Command execution via shell metachars in INN daemon (innd) 1.5 using "newgroup" and… CVSS 3.1CRITICAL 9.8
  • TI-2023-27773 The Closest Encloser Proof aspect of the DNS protocol (in RFC 5155 when RFC 9276 guidance… CVSS 3.1HIGH 7.5
  • TI-2025-27240 Cache poisoning attacks with unsolicited RRs CVSS 3.1HIGH 8.6
See all 285 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences