RLSA-2026:64791

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RLSA-2026:64791

Summary: Critical: 389-ds:1.4 security, bug fix, and enhancement update

Details: 389 Directory Server is an LDAP version 3 (LDAPv3) compliant server. The base packages include the Lightweight Directory Access Protocol (LDAP) server and command-line utilities for server administration. Security Fix(es): * 389-ds-base: 389-ds-base: heap buffer overflow via SASL wrapped-record length lower-bound underflow in sasl_io_start_packet() (CVE-2026-18355) * 389-ds-base: 389-ds-base: pre-authentication NULL pointer dereference via paged results and USE_ONE_BACKEND control in op_shared_search (CVE-2026-18453) * 389-ds-base: 389-ds-base: SASL PLAIN authentication allows privilege escalation to Directory Manager via stale identity in Cyrus SASL auxiliary property (CVE-2026-18922) * 389-ds-base: 389-ds: anonymous LDAP client can defeat SELFDN ACI bind-rule checks via empty bind DN (CVE-2026-76560) Bug Fix(es) and Enhancement(s): * lib389: set nsDS5ReplicaBindDNGroup before ensure_agreement() [rhel-8.10.z] (JIRA:Rocky Linux-244463) * fix breaks replication total init when nsDS5ReplicaBindDNGroup is set after agreement creation [rhel-8.10.z] (JIRA:Rocky Linux-248762) 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.

References: https://errata.rockylinux.org/RLSA-2026:64791, https://bugzilla.redhat.com/show_bug.cgi?id=2509186, https://bugzilla.redhat.com/show_bug.cgi?id=2509696, https://bugzilla.redhat.com/show_bug.cgi?id=2511388, https://bugzilla.redhat.com/show_bug.cgi?id=2519521, https://access.redhat.com/errata/RHSA-2026:64791