CVE-2025-14905
Description
A flaw was found in the 389-ds-base server. A heap buffer overflow vulnerability exists in the `schema_attr_enum_callback` function within the `schema.c` file. This occurs because the code incorrectly calculates the buffer size by summing alias string lengths without accounting for additional formatting characters. When a large number of aliases are processed, this oversight can lead to a heap overflow, potentially allowing a remote attacker to cause a Denial of Service (DoS) or achieve Remote Code Execution (RCE).
How to fix
- access.redhat.com/errata/RHSA-2026:3189
- access.redhat.com/errata/RHSA-2026:3208
- access.redhat.com/errata/RHSA-2026:3379
- access.redhat.com/errata/RHSA-2026:3504
- access.redhat.com/errata/RHSA-2026:4207
- access.redhat.com/errata/RHSA-2026:4661
- access.redhat.com/errata/RHSA-2026:4720
- access.redhat.com/errata/RHSA-2026:5196
- access.redhat.com/errata/RHSA-2026:5511
- access.redhat.com/errata/RHSA-2026:5512
- access.redhat.com/errata/RHSA-2026:5513
- access.redhat.com/errata/RHSA-2026:5514
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| directory_server_e4s 11.5 | No range specified | — |
| directory_server_e4s 11.7 | No range specified | — |
| directory_server 11.9 | No range specified | — |
| directory_server_e4s 12.2 | No range specified | — |
| directory_server_eus 12.4 | No range specified | — |
| Red Hat Red Hat Enterprise Linux 10 | No range specified | — |
| Red Hat Red Hat Enterprise Linux 10.0 Extended Update Support | No range specified | — |
| Red Hat Red Hat Enterprise Linux 7 Extended Lifecycle Support | No range specified | — |
| enterprise_linux 8 | No range specified | — |
| rhel_aus 8.2 | No range specified | — |
| rhel_aus 8.4 | No range specified | — |
| rhel_aus 8.6 | No range specified | — |
| rhel_e4s 8.8 | No range specified | — |
| enterprise_linux 9 | No range specified | — |
| rhel_e4s 9.0 | No range specified | — |
| rhel_e4s 9.2 | No range specified | — |
| rhel_eus 9.4 | No range specified | — |
| rhel_eus 9.6 | No range specified | — |
| directory_server 13.1 | No range specified | — |
| Red Hat Red Hat Directory Server 12 | No range specified | — |
| Red Hat Red Hat Directory Server 13 | No range specified | — |
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