Source: 389-ds-base Version: 3.1.2+vendor1-2 Severity: grave Tags: security upstream Justification: user security hole Forwarded: https://github.com/389ds/389-ds-base/issues/7541 X-Debbugs-Cc: [email protected], Debian Security Team <[email protected]>
Hi, The following vulnerability was published for 389-ds-base. CVE-2026-12528[0]: | 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. If you fix the vulnerability please also make sure to include the CVE (Common Vulnerabilities & Exposures) id in your changelog entry. For further information see: [0] https://security-tracker.debian.org/tracker/CVE-2026-12528 https://www.cve.org/CVERecord?id=CVE-2026-12528 [1] https://bugzilla.redhat.com/show_bug.cgi?id=2489835 [2] https://github.com/389ds/389-ds-base/issues/7541 [3] https://github.com/389ds/389-ds-base/pull/7542 Please adjust the affected versions in the BTS as needed. Regards, Salvatore
