389-ds-base: 389-ds-base: null pointer dereference in deref control plugin ber parser
Published Jun 9, 2026 · Updated Nov 3, 2026
Original summary
Normalized public record · Updated Nov 3, 2026
389-ds-base: 389-ds-base: null pointer dereference in deref control plugin ber parser
Publisher and source text is retained separately from QFinch interpretation.
QFinch assessment
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.
Evidence: public source recordsAffected products
| Affected package, product or range | Fix status |
|---|---|
| Consult the referenced vendor advisory for affected versions. | Consult source advisory |
Matching a version is only one part of assessing exposure. QFinch has not assessed your environment on this public page.
Remediation
Apply the vendor-supported fixed release or mitigation, then verify the affected component is no longer reachable.
- Confirm the affected product and reachable code path exist in your environment.
- Apply the vendor-supported patch or mitigation from the primary advisory.
- Rescan the exact deployed revision and retain verification evidence.
Evidence coverage
- SSVC priority
- LOW
- Confidence
- Not available
- Aliases
- None reported
Scores appear only when corresponding evidence exists. Missing data is never interpreted as zero risk.
Sources and record history
- RHSA-2026:55421 ↗
- RHSA-2026:55422 ↗
- RHSA-2026:55423 ↗
- RHSA-2026:55424 ↗
- RHSA-2026:55425 ↗
- RHSA-2026:55426 ↗
- RHSA-2026:55530 ↗
- RHSA-2026:55532 ↗
- RHSA-2026:55756 ↗
- RHSA-2026:55757 ↗
- RHSA-2026:55758 ↗
- RHSA-2026:55794 ↗
Record history
Published Jun 9, 2026 · Last refreshed Nov 3, 2026