OESA-2026-3993 389-ds-base security update

389-ds-base is an LDAPv3 compliant server which includes the LDAP server and command line utilities for server administration. Security Fixes: A flaw was found in 389 Directory Server. The dereference control plugin does not check for allocation failure before using a BER structure, allowing an...

CVE-2026-11788

A flaw was found in 389 Directory Server. The dereference control plugin does not check for allocation failure before using a BER structure, allowing an unauthenticated remote attacker to crash the LDAP server when the system is under memory pressure. Mitigation Disable the deref plugin most...

CVE-2026-11788

The vulnerability CVE-2026-11788 affects 389 Directory Server (389-ds-base) in the dereference control plugin BER parser. The root cause is that the plugin does not check for BER allocation failures before using structures, enabling a null pointer/dereference scenario that can crash the LDAP serv...