{"schema_version":"1.7.2","id":"OESA-2026-3993","modified":"2026-09-20T13:23:55Z","published":"2026-09-20T13:23:55Z","upstream":["CVE-2026-11788","CVE-2026-12528"],"summary":"389-ds-base security update","details":"389-ds-base is an LDAPv3 compliant server which includes the LDAP server and command line utilities for server administration.\r\n\r\nSecurity Fix(es):\n\nA 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.(CVE-2026-11788)\n\nA flaw was found in 389 Directory Server in the __aclp__normalize_acltxt() function of aclparse.c. A malformed ACI (Access Control Instruction) string can trigger heap-buffer-overflow writes and reads during ACI parsing. The function fails to validate that the ACI keyword has sufficient length after whitespace stripping, leading to a 1-byte out-of-bounds write and subsequent out-of-bounds reads. An authenticated user with write access to the aci attribute could send a crafted ACI value to silently corrupt heap memory in the directory server process.(CVE-2026-12528)","affected":[{"package":{"ecosystem":"openEuler:22.03-LTS-SP4","name":"389-ds-base","purl":"pkg:rpm/openEuler/389-ds-base&distro=openEuler-22.03-LTS-SP4"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.4.3.36-13.oe2203sp4"}]}],"ecosystem_specific":{"aarch64":["389-ds-base-1.4.3.36-13.oe2203sp4.aarch64.rpm","389-ds-base-debuginfo-1.4.3.36-13.oe2203sp4.aarch64.rpm","389-ds-base-debugsource-1.4.3.36-13.oe2203sp4.aarch64.rpm","389-ds-base-devel-1.4.3.36-13.oe2203sp4.aarch64.rpm","389-ds-base-help-1.4.3.36-13.oe2203sp4.aarch64.rpm","389-ds-base-legacy-tools-1.4.3.36-13.oe2203sp4.aarch64.rpm","389-ds-base-snmp-1.4.3.36-13.oe2203sp4.aarch64.rpm"],"noarch":["cockpit-389-ds-1.4.3.36-13.oe2203sp4.noarch.rpm","python3-lib389-1.4.3.36-13.oe2203sp4.noarch.rpm"],"src":["389-ds-base-1.4.3.36-13.oe2203sp4.src.rpm"],"x86_64":["389-ds-base-1.4.3.36-13.oe2203sp4.x86_64.rpm","389-ds-base-debuginfo-1.4.3.36-13.oe2203sp4.x86_64.rpm","389-ds-base-debugsource-1.4.3.36-13.oe2203sp4.x86_64.rpm","389-ds-base-devel-1.4.3.36-13.oe2203sp4.x86_64.rpm","389-ds-base-help-1.4.3.36-13.oe2203sp4.x86_64.rpm","389-ds-base-legacy-tools-1.4.3.36-13.oe2203sp4.x86_64.rpm","389-ds-base-snmp-1.4.3.36-13.oe2203sp4.x86_64.rpm"]}}],"references":[{"type":"ADVISORY","url":"https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2026-3993"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-11788"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-12528"}],"severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"}],"database_specific":{"severity":"High"}}