389-ds-base: null pointer dereference leads to denial of service
Priority LOW 23CWE-476Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- High
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- Partial Red Hat: 6 fixed, 3 without a fix
Attack profile from CVSS 3.1 · CNA. Fix status from CNA and Red Hat. Impact type from CWE-476.
Summary
A flaw was found in the 389-ds-base LDAP Server. This issue occurs when issuing a Modify DN LDAP operation through the ldap protocol, when the function return value is not tested and a NULL pointer is dereferenced. If a privileged user performs a ldap MODDN operation after a failed operation, it could lead to a Denial of Service (DoS) or system crash.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00598 48th percentileScored 2026-11-07
Fix Partial Red Hat: 4 advisoriesRed Hat: 6 fixed, 3 without a fix
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | 389-ds-base | 2.4.0 – 2.4.6; 2.5.0 – 2.5.3; 2.6.0 – 2.6.1; 3.0.0 – 3.0.6 | — | No fix listed | CNA |
| Red Hat | Red Hat Directory Server 12.4 EUS for RHEL 9 | — | 9040020250325181857.1674d574 | Patch available | CNA |
| Red Hat | Red Hat Enterprise Linux 9 | — | 2.5.2-9.el9_5 | Patch available | CNA |
| Red Hat | Red Hat Enterprise Linux 9 | — | 2.6.1-8.el9_6 | Patch available | CNA |
| Red Hat | Red Hat Enterprise Linux 9.4 Extended Update Support | — | 2.4.5-14.el9_4 | Patch available | CNA |
| Red Hat | Red Hat Directory Server 12 | — | — | Not affected | CNA |
| Red Hat | Red Hat Enterprise Linux 10 | — | — | Not affected | CNA |
| Red Hat | Red Hat Enterprise Linux 6 | — | — | No fix listed | CNA |
| Red Hat | Red Hat Enterprise Linux 7 | — | — | No fix listed | CNA |
| Red Hat | Red Hat Enterprise Linux 8 | — | — | No fix listed | CNA |
- 389-ds-base Vendor— Affected 2.4.0 – 2.4.6; 2.5.0 – 2.5.3; 2.6.0 – 2.6.1; 3.0.0 – 3.0.6 Fixed in — No fix listed CNA
- Red Hat Directory Server 12.4 EUS for RHEL 9 VendorRed Hat Affected — Fixed in 9040020250325181857.1674d574 Patch available CNA
- Red Hat Enterprise Linux 9 VendorRed Hat Affected — Fixed in 2.5.2-9.el9_5 Patch available CNA
- Red Hat Enterprise Linux 9 VendorRed Hat Affected — Fixed in 2.6.1-8.el9_6 Patch available CNA
- Red Hat Enterprise Linux 9.4 Extended Update Support VendorRed Hat Affected — Fixed in 2.4.5-14.el9_4 Patch available CNA
- Red Hat Directory Server 12 VendorRed Hat Affected — Fixed in — Not affected CNA
- Red Hat Enterprise Linux 10 VendorRed Hat Affected — Fixed in — Not affected CNA
- Red Hat Enterprise Linux 6 VendorRed Hat Affected — Fixed in — No fix listed CNA
- Red Hat Enterprise Linux 7 VendorRed Hat Affected — Fixed in — No fix listed CNA
- Red Hat Enterprise Linux 8 VendorRed Hat Affected — Fixed in — No fix listed CNA
CPE names CNA · 10
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:/a:redhat:directory_server_eus:12.4::el9 | 12.4 | — | Red Hat |
| cpe:/a:redhat:enterprise_linux:9::appstream | 9 | — | Red Hat |
| cpe:/a:redhat:enterprise_linux:9::crb | 9 | — | Red Hat |
| cpe:/a:redhat:rhel_eus:9.4::appstream | 9.4 | — | Red Hat |
| cpe:/a:redhat:rhel_eus:9.4::crb | 9.4 | — | Red Hat |
| cpe:/a:redhat:directory_server:12 | 12 | — | Red Hat |
| cpe:/a:redhat:enterprise_linux:10 | 10 | — | Red Hat |
| cpe:/o:redhat:rhel_els:6 | 6 | — | Red Hat |
| cpe:/o:redhat:rhel_els:7 | 7 | — | Red Hat |
| cpe:/a:redhat:enterprise_linux:8 | 8 | — | Red Hat |
- cpe:/a:redhat:directory_server_eus:12.4::el9 Versions 12.4 — ·Red Hat
- cpe:/a:redhat:enterprise_linux:9::appstream Versions 9 — ·Red Hat
- cpe:/a:redhat:enterprise_linux:9::crb Versions 9 — ·Red Hat
- cpe:/a:redhat:rhel_eus:9.4::appstream Versions 9.4 — ·Red Hat
- cpe:/a:redhat:rhel_eus:9.4::crb Versions 9.4 — ·Red Hat
- cpe:/a:redhat:directory_server:12 Versions 12 — ·Red Hat
- cpe:/a:redhat:enterprise_linux:10 Versions 10 — ·Red Hat
- cpe:/o:redhat:rhel_els:6 Versions 6 — ·Red Hat
- cpe:/o:redhat:rhel_els:7 Versions 7 — ·Red Hat
- cpe:/a:redhat:enterprise_linux:8 Versions 8 — ·Red Hat
Remediation
Red Hat 4 advisories
- RHSA-2025:7395 Released 2025-05-13 · Red Hat rating Moderate389-ds-base security update
- Red Hat Enterprise Linux AppStream (v. 9) 389-ds-base-2.6.1-8.el9_6, 389-ds-base-libs-2.6.1-8.el9_6, 389-ds-base-snmp-2.6.1-8.el9_6 +1
- Red Hat Enterprise Linux CodeReady Linux Builder (v. 9) 389-ds-base-devel-2.6.1-8.el9_6
- RHSA-2025:4491 Released 2025-05-06 · Red Hat rating Moderate389-ds-base security update
- Red Hat CodeReady Linux Builder (v. 9) 389-ds-base-devel-2.5.2-9.el9_5
- Red Hat Enterprise Linux AppStream (v. 9) 389-ds-base-2.5.2-9.el9_5, 389-ds-base-libs-2.5.2-9.el9_5, 389-ds-base-snmp-2.5.2-9.el9_5 +1
- RHSA-2025:3663 Released 2025-04-08 · Red Hat rating Moderate389-ds-base security update
- Red Hat CodeReady Linux Builder EUS (v.9.4) 389-ds-base-devel-2.4.5-14.el9_4
- Red Hat Enterprise Linux AppStream EUS (v.9.4) 389-ds-base-2.4.5-14.el9_4, 389-ds-base-libs-2.4.5-14.el9_4, python3-lib389-2.4.5-14.el9_4
Show 1 more Red Hat advisories
- RHSA-2025:3670 Released 2025-04-08 · Red Hat rating Moderateredhat-ds:12 security update
- Red Hat Directory Server 12.4 EUS for RHEL 9 389-ds-base-2.4.5-12.module+el9dsrv+22976+238a2ead.src::redhat-ds:12, 389-ds-base-2.4.5-12.module+el9dsrv+22976+238a2ead.x86_64::redhat-ds:12, 389-ds-base-devel-2.4.5-12.module+el9dsrv+22976+238a2ead.x86_64::redhat-ds:12 +4
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux 6 | Affected | No fix planned: Out of support scope |
| Red Hat Enterprise Linux 7 | Affected | No fix planned: Out of support scope |
| Red Hat Enterprise Linux 8 | Affected | No fix planned: Out of support scope |
| Red Hat CodeReady Linux Builder (v. 9) | Fixed | RHSA-2025:4491 |
| Red Hat CodeReady Linux Builder EUS (v.9.4) | Fixed | RHSA-2025:3663 |
| Red Hat Directory Server 12.4 EUS for RHEL 9 | Fixed | RHSA-2025:3670 |
| Red Hat Enterprise Linux AppStream (v. 9) | Fixed | RHSA-2025:4491, RHSA-2025:7395 |
| Red Hat Enterprise Linux AppStream EUS (v.9.4) | Fixed | RHSA-2025:3663 |
| Red Hat Enterprise Linux CodeReady Linux Builder (v. 9) | Fixed | RHSA-2025:7395 |
Not affected: 2 products
- Red Hat Directory Server 12
- Red Hat Enterprise Linux 10
Timeline
- 2026-10-02 Threatist record created from CVE-2025-2487
- 2026-10-03 Alias added: GHSA-33fh-4pvq-9x35
References
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Sources
- CVE-2025-2487 · CVE Program
- CVE-2025-2487 · NVD
- FIRST EPSS
- GHSA-33fh-4pvq-9x35 · GitHub Advisory Database · CC BY 4.0
- CVE-2025-2487 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences