Fedora Account System
Red Hat Associate
Red Hat Customer
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. The Content Synchronization (syncrepl) persistent search plugin in 389 Directory Server contains three availability bugs in sync_persist.c: Bug 1 (primary): Unbounded queue growth — an authenticated user opens a persistent sync search then stops reading responses; modification events queue without limit until memory exhaustion and server crash. Confirmed on UBI 8 and CentOS Stream 8 production binaries (+17MB measured from 500 mods). Bug 2: sync_persist_terminate() dangling pointer race during connection teardown. Bug 3: thread_count non-atomic increment/decrement during shutdown (weak memory model architectures). Vulnerable code present since plugin introduction; no upstream fix as of 2026-04-22.
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/9652a30ee
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.