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.
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History
Thu, 18 Jun 2026 16:45:00 +0000
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Thu, 18 Jun 2026 04:45:00 +0000
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| Description | 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. | |
| Title | 389-ds-base: 389-ds-base: heap-buffer-overflows in __aclp__normalize_acltxt() | |
| First Time appeared |
Redhat
Redhat directory Server Redhat enterprise Linux |
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| Weaknesses | CWE-787 | |
| CPEs | cpe:/a:redhat:directory_server:11 cpe:/a:redhat:directory_server:12 cpe:/a:redhat:directory_server:13 cpe:/o:redhat:enterprise_linux:10 cpe:/o:redhat:enterprise_linux:6 cpe:/o:redhat:enterprise_linux:7 cpe:/o:redhat:enterprise_linux:8 cpe:/o:redhat:enterprise_linux:9 |
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| Vendors & Products |
Redhat
Redhat directory Server Redhat enterprise Linux |
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cvssV3_1
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Status: PUBLISHED
Assigner: redhat
Published:
Updated: 2026-06-17T18:12:30.719Z
Reserved: 2026-06-17T13:48:38.528Z
Link: CVE-2026-12528
Updated: 2026-06-17T18:01:10.168Z
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OpenCVE Enrichment
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