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Disclaimer: Community trackers are created by Red Hat Product Security team on a best effort basis. Package maintainers are required to ascertain if the flaw indeed affects their package, before starting the update process. A heap buffer overflow exists in 389 Directory Server's audit log password masking feature. The create_masked_entry_string() function (auditlog.c:109) uses strcpy to write a fixed 24-byte mask string into a precisely-sized heap buffer from slapi_entry2str(). When a password value is shorter than 23 characters, the copy overflows past the allocated buffer boundary. Trigger conditions require non-default configuration: audit logging enabled AND either passwordStorageScheme=CLEAR (explicitly discouraged) or a compromised replication peer sending short cleartext passwords via replicated ADD (repl_op bypasses password hashing). Introduced by commit bfeaa8d (Issue 6884, July 2025) and backported to RHEL 9.6 (RHEL-109954) and RHEL 10 (RHEL-107035). Not present in RHEL 7, RHEL 8, or RHEL 9.0-9.5. Production testing: heap corruption confirmed in audit log output on live server; ASan PoC confirms overflow. Production binaries may absorb overflow in allocator padding without immediate crash. Advisory: 389-ds-campaign-2026-04/006-Auditlog-Heap-Overflow/advisory.md. Source: PSIRTSUPT-7600 (Ian Murphy, Red Hat Product Security).
This bug appears to have been reported against 'rawhide' during the Fedora Linux 45 development cycle. Changing version to 45.
Fixed in https://github.com/389ds/389-ds-base/commit/38d4da2f8
FEDORA-2026-b16c9cbc0f (389-ds-base-3.2.3-2.fc44) has been submitted as an update to Fedora 44. https://bodhi.fedoraproject.org/updates/FEDORA-2026-b16c9cbc0f
FEDORA-2026-c1e25a4642 has been pushed to the Fedora 45 testing repository. Soon you'll be able to install the update with the following command: `sudo dnf upgrade --enablerepo=updates-testing --refresh --advisory=FEDORA-2026-c1e25a4642` You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2026-c1e25a4642 See also https://fedoraproject.org/wiki/QA:Updates_Testing for more information on how to test updates.
FEDORA-2026-b16c9cbc0f has been pushed to the Fedora 44 testing repository. Soon you'll be able to install the update with the following command: `sudo dnf upgrade --enablerepo=updates-testing --refresh --advisory=FEDORA-2026-b16c9cbc0f` You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2026-b16c9cbc0f See also https://fedoraproject.org/wiki/QA:Updates_Testing for more information on how to test updates.
FEDORA-2026-0b8bc362b1 has been pushed to the Fedora 43 testing repository. Soon you'll be able to install the update with the following command: `sudo dnf upgrade --enablerepo=updates-testing --refresh --advisory=FEDORA-2026-0b8bc362b1` You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2026-0b8bc362b1 See also https://fedoraproject.org/wiki/QA:Updates_Testing for more information on how to test updates.
FEDORA-2026-c1e25a4642 (389-ds-base-3.3.1-3.fc45) has been pushed to the Fedora 45 stable repository. If problem still persists, please make note of it in this bug report.
FEDORA-2026-0b8bc362b1 (389-ds-base-3.1.5-4.fc43) has been pushed to the Fedora 43 stable repository. If problem still persists, please make note of it in this bug report.
FEDORA-2026-b16c9cbc0f (389-ds-base-3.2.3-5.fc44) has been pushed to the Fedora 44 stable repository. If problem still persists, please make note of it in this bug report.