RLSA-2026:98497: Important: bind security update
The Berkeley Internet Name Domain (BIND) is an implementation of the Domain Name System (DNS) protocols. BIND includes a DNS server (named); a resolver library (routines for applications to use when interfacing with DNS); and tools for verifying that the DNS server is operating correctly.
Security Fix(es):
bind: BIND: Denial of Service via unbounded processing of crafted DNS messages (CVE-2026-19630)
bind: bind: Arbitrary code execution via GSS-TSIG UDP message replay (CVE-2026-94300)
bind: bind: Denial of Service via assertion failure during redirect processing (CVE-2026-96888)
bind: bind: Denial of service via assertion failure in RPZ query processing (CVE-2026-97313)
For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
rocky-linux/bindto a version that resolves this vulnerability.Fixed in 2:9.16.50-12.el9_9.1 - Upgrade
Upgrade
rocky-linux/bind-chrootto a version that resolves this vulnerability.Fixed in 2:9.16.50-12.el9_9.1 - Upgrade
Upgrade
rocky-linux/bind-debuginfoto a version that resolves this vulnerability.Fixed in 2:9.16.50-12.el9_9.1 - Upgrade
Upgrade
rocky-linux/bind-debugsourceto a version that resolves this vulnerability.Fixed in 2:9.16.50-12.el9_9.1 - Upgrade
Upgrade
rocky-linux/bind-develto a version that resolves this vulnerability.Fixed in 2:9.16.50-12.el9_9.1 - Upgrade
Upgrade
rocky-linux/bind-dnssec-utilsto a version that resolves this vulnerability.Fixed in 2:9.16.50-12.el9_9.1 - Upgrade
Upgrade
rocky-linux/bind-dnssec-utils-debuginfoto a version that resolves this vulnerability.Fixed in 2:9.16.50-12.el9_9.1 - Upgrade
Upgrade
rocky-linux/bind-libsto a version that resolves this vulnerability.Fixed in 2:9.16.50-12.el9_9.1 - Upgrade
Upgrade
rocky-linux/bind-libs-debuginfoto a version that resolves this vulnerability.Fixed in 2:9.16.50-12.el9_9.1 - Upgrade
Upgrade
rocky-linux/bind-utilsto a version that resolves this vulnerability.Fixed in 2:9.16.50-12.el9_9.1 - Upgrade
Upgrade
rocky-linux/bind-utils-debuginfoto a version that resolves this vulnerability.Fixed in 2:9.16.50-12.el9_9.1 - Upgrade
Upgrade
rocky-linux/bind-dnssec-docto a version that resolves this vulnerability.Fixed in 2:9.16.50-12.el9_9.1 - Upgrade
Upgrade
rocky-linux/bind-docto a version that resolves this vulnerability.Fixed in 2:9.16.50-12.el9_9.1 - Upgrade
Upgrade
rocky-linux/bind-licenseto a version that resolves this vulnerability.Fixed in 2:9.16.50-12.el9_9.1 - Upgrade
Upgrade
rocky-linux/python3-bindto a version that resolves this vulnerability.Fixed in 2:9.16.50-12.el9_9.1
Event History
Child vulnerabilities
Contains the following vulnerabilities.
Frequently Asked Questions
Which Rocky Linux packages are covered by this update?
The update covers bind, bind-chroot, bind-debuginfo, bind-debugsource, bind-devel, bind-dnssec-utils, bind-dnssec-utils-debuginfo, and bind-libs.
What types of impact are addressed?
The listed fixes address two denial-of-service conditions, including unbounded processing of crafted DNS messages and assertion failures during redirect or RPZ query processing. They also address arbitrary code execution through GSS-TSIG UDP message replay.
Does exploitation require authentication or user interaction?
The provided CVSS vector for the advisory is AV:N/AC:H/PR:N/UI:N. This indicates network reachability, high attack complexity, no required privileges, and no user interaction for the advisory-level severity assessment.