RLSA-2026:79113

Security

Mirrored from RHSA-2026:79113

Issued at: 2026-10-09

Updated at: 2026-10-09

Advisory content derived from Red Hat RHSA-2026:79113, © Red Hat, Inc., used under CC BY 4.0, with modifications.

Synopsis

Important: bind9.16 security, bug fix, and enhancement update

Description

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):

* bind9: bind: BIND 9: Denial of Service via 16-bit length truncation in DNS negative cache handling (CVE-2026-19667)

* bind: BIND: Denial of Service via crafted DNSSEC reply (CVE-2026-80274)

* bind: BIND: Denial of Service via malformed DNS64 responses (CVE-2026-19666)

Bug Fix(es) and Enhancement(s):

* bind 9.16 crash with SIGSEGV (JIRA:Rocky Linux-273294)

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 products

Rocky Linux 8 aarch64

Rocky Linux 8 x86_64

Fixes

2535435

2535466

2535477

CVEs

CVE-2026-19666

CVE-2026-19667

CVE-2026-80274

Affected packages

Rocky Linux 8 aarch64 - AppStream

bind9.16-32:9.16.23-0.22.el8_10.16.aarch64.rpm

bind9.16-32:9.16.23-0.22.el8_10.16.src.rpm

bind9.16-chroot-32:9.16.23-0.22.el8_10.16.aarch64.rpm

bind9.16-debuginfo-32:9.16.23-0.22.el8_10.16.aarch64.rpm

bind9.16-debugsource-32:9.16.23-0.22.el8_10.16.aarch64.rpm

bind9.16-dnssec-utils-32:9.16.23-0.22.el8_10.16.aarch64.rpm

bind9.16-dnssec-utils-debuginfo-32:9.16.23-0.22.el8_10.16.aarch64.rpm

bind9.16-libs-32:9.16.23-0.22.el8_10.16.aarch64.rpm

bind9.16-libs-debuginfo-32:9.16.23-0.22.el8_10.16.aarch64.rpm

bind9.16-license-32:9.16.23-0.22.el8_10.16.noarch.rpm

bind9.16-utils-32:9.16.23-0.22.el8_10.16.aarch64.rpm

bind9.16-utils-debuginfo-32:9.16.23-0.22.el8_10.16.aarch64.rpm

python3-bind9.16-32:9.16.23-0.22.el8_10.16.noarch.rpm

Rocky Linux 8 x86_64 - AppStream

bind9.16-32:9.16.23-0.22.el8_10.16.src.rpm

bind9.16-32:9.16.23-0.22.el8_10.16.x86_64.rpm

bind9.16-chroot-32:9.16.23-0.22.el8_10.16.x86_64.rpm

bind9.16-debuginfo-32:9.16.23-0.22.el8_10.16.x86_64.rpm

bind9.16-debugsource-32:9.16.23-0.22.el8_10.16.x86_64.rpm

bind9.16-dnssec-utils-32:9.16.23-0.22.el8_10.16.x86_64.rpm

bind9.16-dnssec-utils-debuginfo-32:9.16.23-0.22.el8_10.16.x86_64.rpm

bind9.16-libs-32:9.16.23-0.22.el8_10.16.x86_64.rpm

bind9.16-libs-debuginfo-32:9.16.23-0.22.el8_10.16.x86_64.rpm

bind9.16-license-32:9.16.23-0.22.el8_10.16.noarch.rpm

bind9.16-utils-32:9.16.23-0.22.el8_10.16.x86_64.rpm

bind9.16-utils-debuginfo-32:9.16.23-0.22.el8_10.16.x86_64.rpm

python3-bind9.16-32:9.16.23-0.22.el8_10.16.noarch.rpm

Rocky Linux 8 x86_64 - PowerTools

bind9.16-debuginfo-32:9.16.23-0.22.el8_10.16.i686.rpm

bind9.16-debugsource-32:9.16.23-0.22.el8_10.16.i686.rpm

bind9.16-devel-32:9.16.23-0.22.el8_10.16.i686.rpm

bind9.16-devel-32:9.16.23-0.22.el8_10.16.x86_64.rpm

bind9.16-doc-32:9.16.23-0.22.el8_10.16.noarch.rpm

bind9.16-libs-32:9.16.23-0.22.el8_10.16.i686.rpm

bind9.16-libs-debuginfo-32:9.16.23-0.22.el8_10.16.i686.rpm

Rocky Linux 8 aarch64 - PowerTools

bind9.16-devel-32:9.16.23-0.22.el8_10.16.aarch64.rpm

bind9.16-doc-32:9.16.23-0.22.el8_10.16.noarch.rpm