Description (CNA)
A heap buffer overflow flaw was found in 389 Directory Server. When serializing objectclass definitions, the oc_superior (SUP) field length is omitted from buffer size calculations in read_schema_dse() and schema_oc_to_string(), but the field is still written via strcat(). An attacker with Directory Manager privileges, or a compromised replication supplier, can trigger a server crash by creating objectclasses with long SUP values. This is an incomplete fix variant of CVE-2025-14905.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Red Hat / Red Hat Directory Server 11 | affected |
| Red Hat / Red Hat Directory Server 12 | affected |
| Red Hat / Red Hat Directory Server 13 | affected |
| Red Hat / Red Hat Enterprise Linux 10 | affected |
| Red Hat / Red Hat Enterprise Linux 6 | unknown |
| Red Hat / Red Hat Enterprise Linux 7 | affected |
| Red Hat / Red Hat Enterprise Linux 8 | affected |
| Red Hat / Red Hat Enterprise Linux 9 | affected |
CWE
CWE-122
References
- https://access.redhat.com/security/cve/CVE-2026-11884
- https://bugzilla.redhat.com/show_bug.cgi?id=2423624
- https://bugzilla.redhat.com/show_bug.cgi?id=2484913
ADP enrichment
No English description supplied.
No references supplied.