OESA-2026-3994 (CVE-2026-11788)

Vulnerability from osv_openeuler – Published: 2026-09-20 13:23 – Updated: 2026-09-20 13:23 – Source website
VLAI
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.

Security Fix(es):

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.(CVE-2026-11788)

A 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)

Severity
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
References
To clipboard 

{
  "affected": [
    {
      "ecosystem_specific": {
        "aarch64": [
          "389-ds-base-3.1.1-12.oe2403sp1.aarch64.rpm",
          "389-ds-base-debuginfo-3.1.1-12.oe2403sp1.aarch64.rpm",
          "389-ds-base-debugsource-3.1.1-12.oe2403sp1.aarch64.rpm",
          "389-ds-base-devel-3.1.1-12.oe2403sp1.aarch64.rpm",
          "389-ds-base-help-3.1.1-12.oe2403sp1.aarch64.rpm",
          "389-ds-base-snmp-3.1.1-12.oe2403sp1.aarch64.rpm"
        ],
        "noarch": [
          "cockpit-389-ds-3.1.1-12.oe2403sp1.noarch.rpm",
          "python3-lib389-3.1.1-12.oe2403sp1.noarch.rpm"
        ],
        "src": [
          "389-ds-base-3.1.1-12.oe2403sp1.src.rpm"
        ],
        "x86_64": [
          "389-ds-base-3.1.1-12.oe2403sp1.x86_64.rpm",
          "389-ds-base-debuginfo-3.1.1-12.oe2403sp1.x86_64.rpm",
          "389-ds-base-debugsource-3.1.1-12.oe2403sp1.x86_64.rpm",
          "389-ds-base-devel-3.1.1-12.oe2403sp1.x86_64.rpm",
          "389-ds-base-help-3.1.1-12.oe2403sp1.x86_64.rpm",
          "389-ds-base-snmp-3.1.1-12.oe2403sp1.x86_64.rpm"
        ]
      },
      "package": {
        "ecosystem": "openEuler:24.03-LTS-SP1",
        "name": "389-ds-base",
        "purl": "pkg:rpm/openEuler/389-ds-base\u0026distro=openEuler-24.03-LTS-SP1"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "3.1.1-12.oe2403sp1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "severity": "High"
  },
  "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)",
  "id": "OESA-2026-3994",
  "modified": "2026-09-20T13:23:56Z",
  "published": "2026-09-20T13:23:56Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2026-3994"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-11788"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-12528"
    }
  ],
  "schema_version": "1.7.2",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "389-ds-base security update",
  "upstream": [
    "CVE-2026-11788",
    "CVE-2026-12528"
  ]
}



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