Resource exhaustion in ISC BIND - CVE-2025-8677

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Main Vulnerability Database Vulnerabilities #VU117577

Resource exhaustion in ISC BIND - CVE-2025-8677

Published: October 23, 2025


Vulnerability identifier: #VU117577
CSH Severity: Medium
CVSS v4: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2025-8677
CWE-ID: CWE-400
Exploitation vector: Remote access
Exploit availability: No public exploit available

Vulnerability details

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to application does not properly control consumption of internal resources when querying for data within a specially crafted zone containing certain malformed DNSKEY records. A remote attacker can trigger resource exhaustion and perform a denial of service (DoS) attack.


Affected software

ISC BIND
Debian Linux
SUSE Linux Enterprise Server for SAP Applications 15
SUSE Linux Enterprise Server 15
SUSE Linux Enterprise Real Time 15
SUSE Linux Enterprise Desktop 15
IBM i
Red Hat Enterprise Linux for ARM 64
Red Hat Enterprise Linux for x86_64
Red Hat Enterprise Linux for IBM z Systems
Red Hat Enterprise Linux for Power, little endian
Server Applications Module
Basesystem Module
openSUSE Leap
Ubuntu
Anolis OS
openEuler
Fedora
Netezza Appliance
Cryostat
Red Hat OpenShift Container Platform
bind-debugsource
bind
bind-devel
bind-dnssec-utils
bind-libs
bind-utils
bind-dnssec-doc
bind-license
bind-debuginfo
bind-chroot
bind9.18 (Red Hat package)
bind9 (Ubuntu package)
bind (Red Hat package) main
bind-doc
bind-utils-debuginfo
bind9 (Debian package)
bind9-next
bind-dyndb-ldap

How to mitigate CVE-2025-8677

Install updates from vendor's website.

ISC BIND - addressed in versions 9.18.41, 9.18.41-S1, 9.20.15, 9.20.15-S1, 9.21.14
Netezza Appliance - update to 1.0.0.1
Cryostat - update to 4.1.0
Red Hat OpenShift Container Platform - addressed in versions 4.12.84, 4.13.63, 4.14.61, 4.15.61, 4.16.55, 4.17.47, 4.18.31, 4.19.22, 4.20.10
bind-debugsource - update to 9.18.21-5
bind - update to 9.18.21-5
bind-devel - update to 9.18.21-5
bind-dnssec-utils - update to 9.18.21-5
bind-libs - update to 9.18.21-5
bind-utils - update to 9.18.21-5
bind-dnssec-doc - update to 9.18.21-5
bind-license - update to 9.18.21-5
bind-debuginfo - update to 9.18.21-5
bind-chroot - update to 9.18.21-5
bind9.18 (Red Hat package) - update to 9.18.29-5.el9_7.2
bind9 (Ubuntu package) - addressed in versions 1:9.18.30-0ubuntu0.20.04.2+esm1, 1:9.18.39-0ubuntu0.22.04.2, 1:9.18.39-0ubuntu0.24.04.2, 1:9.20.11-0ubuntu0.2, 1:9.20.11-1ubuntu2.1
bind (Red Hat package) main - addressed in versions 9.18.33-4.el10_0.2, 9.18.33-10.el10_1.2
bind-doc - addressed in versions 9.18.33-150600.3.18.1, 9.20.15-150700.3.12.1
bind-debugsource - addressed in versions 9.18.33-150600.3.18.1, 9.20.15-150700.3.12.1
bind-utils - addressed in versions 9.18.33-150600.3.18.1, 9.20.15-150700.3.12.1
bind-debuginfo - addressed in versions 9.18.33-150600.3.18.1, 9.20.15-150700.3.12.1
bind - addressed in versions 9.18.33-150600.3.18.1, 9.20.15-150700.3.12.1
bind-utils-debuginfo - addressed in versions 9.18.33-150600.3.18.1, 9.20.15-150700.3.12.1
bind-utils - update to 9.18.34-4
bind-libs - update to 9.18.34-4
bind - update to 9.18.34-4
bind-chroot - update to 9.18.34-4
bind-devel - update to 9.18.34-4
bind-dnssec-utils - update to 9.18.34-4
bind-license - update to 9.18.34-4
bind-doc - update to 9.18.34-4
bind-dnssec-doc - update to 9.18.34-4
bind - addressed in versions 9.18.41-1.fc41, 9.18.41-1.fc42, 9.18.41-1.fc43, 9.18.41-1.fc44, 9.18.41-2.fc43
bind9 (Debian package) - addressed in versions 1:9.18.41-1~deb12u1, 1:9.20.15-1~deb13u1
bind9-next - update to 9.21.14-2.fc43
bind-dyndb-ldap - addressed in versions 11.10-35.fc41, 11.11-7.fc42, 11.11-8.fc43, 11.11-8.fc44

External References

Related Security Bulletins