It was found that the fix for CVE-2018-14648 in 389-ds-base, versions 1.4.0.x before 1.4.0.17, was incorrectly applied in RHEL 7.5.
It was found that the fix for CVE-2018-14648 in 389-ds-base, versions 1.4.0.x before 1.4.0.17, was incorrectly applied in RHEL 7.5. An attacker would still be able to provoke excessive CPU consumption leading to a denial of service.
- Published
- Aug 2, 2019
- Updated
- Jun 16, 2026
- EPSS
- 1.4% · 71th percentile
- CWE
- CWE-770
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Report tools
Action score
30
Monitor
Low priority for now.
- CVSS
- 30 / 40 · 7.5 / 10
- CISA KEV
- 0 / 30 · Not listed
- EPSS
- 0 / 30 · 1.4%
CNA vs NVD score
- NVD
- 7.5
- CNA · redhat
- 7.5
- agree
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.
Affected systems
| Vendor | Product | CPE |
|---|---|---|
| fedoraproject | 389 directory server | cpe:2.3:a:fedoraproject:389_directory_server |
| redhat | enterprise linux server eus | cpe:2.3:o:redhat:enterprise_linux_server_eus |
Affected versions
NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.
- fedoraproject 389 directory server1.4.0.0 and later · before 1.4.0.17
- redhat enterprise linux server eus7.5
Versions reported by the vendor
Affected version ranges reported by the assigning authority (redhat). Independent of NVD's CPE analysis and usually ahead of it.
RedHat 389-ds-base
- 1.4.0.x before 1.4.0.17affected
Package-level exposure
OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.
| Ecosystem | Package | Affected range | Fix |
|---|---|---|---|
| Red Hat:rhel_eus:7.5::computenode | 389-ds-base | before 0:1.3.7.5-30.el7_5 | 0:1.3.7.5-30.el7_5 |
| Red Hat:rhel_eus:7.5::computenode | 389-ds-base-debuginfo | before 0:1.3.7.5-30.el7_5 | 0:1.3.7.5-30.el7_5 |
| Red Hat:rhel_eus:7.5::computenode | 389-ds-base-devel | before 0:1.3.7.5-30.el7_5 | 0:1.3.7.5-30.el7_5 |
| Red Hat:rhel_eus:7.5::computenode | 389-ds-base-libs | before 0:1.3.7.5-30.el7_5 | 0:1.3.7.5-30.el7_5 |
| Red Hat:rhel_eus:7.5::computenode | 389-ds-base-snmp | before 0:1.3.7.5-30.el7_5 | 0:1.3.7.5-30.el7_5 |
Same product
fedoraproject: all recordsOther highest-scoring records for the same primary product.
- CVE-2017-7551389-ds-base version before 1.3.5.19 and 1.3.6.7 are vulnerable to password brute-force attacks during account lockout due to different retur39Monitor
- CVE-2019-3883In 389-ds-base up to version 1.4.1.2, requests are handled by workers threads.33Monitor
- CVE-2017-15135It was found that 389-ds-base since 1.3.6.1 up to and including 1.4.0.3 did not always handle internal hash comparison operations correctly 33Monitor
- CVE-2018-14648A flaw was found in 389 Directory Server.32Monitor
- CVE-2018-14638A flaw was found in 389-ds-base before version 1.3.8.4-13.31Monitor
- CVE-2018-14624A vulnerability was discovered in 389-ds-base through versions 1.3.7.10, 1.3.8.8 and 1.4.0.16.31Monitor
Remediation
Which version to upgrade to
Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.
| Product / package | Fixed version | Source |
|---|---|---|
| Red Hat:389-ds-base | 0:1.3.7.5-30.el7_5 · Red Hat:rhel_eus:7.5::computenode | Package registry (OSV) |
| Red Hat:389-ds-base-debuginfo | 0:1.3.7.5-30.el7_5 · Red Hat:rhel_eus:7.5::computenode | Package registry (OSV) |
| Red Hat:389-ds-base-devel | 0:1.3.7.5-30.el7_5 · Red Hat:rhel_eus:7.5::computenode | Package registry (OSV) |
| Red Hat:389-ds-base-libs | 0:1.3.7.5-30.el7_5 · Red Hat:rhel_eus:7.5::computenode | Package registry (OSV) |
| Red Hat:389-ds-base-snmp | 0:1.3.7.5-30.el7_5 · Red Hat:rhel_eus:7.5::computenode | Package registry (OSV) |
Exploit status
No known public exploit
No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.
Research context
For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.
Timeline
From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.
No dated events beyond publication.
FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).
Patch and commit links
Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.
No commit or PR link among the references.
Credits
All researchersFinders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.
No credits in the CNA record.
Variant candidates
Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.
No nightly-computed relations.
Chain candidates
An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.
—
Bug bounty scope
No known public program.
Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).
Technical details
Attack conditions
- Anyone who can reach it over the internet can trigger it.
- No account or password is required.
- No user action is required.
- No special conditions are required; it is repeatable.
If successful
- Confidentiality
- none
- Integrity
- none
- Availability
- high · the service can be disrupted
- Attack vector
- Network
- Attack complexity
- Low
- Privileges required
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality impact
- None
- Integrity impact
- None
- Availability impact
- High
Weakness class (CWE)
CWE-770 · Allocation of Resources Without Limits or ThrottlingCVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
nvd-primary
Attack context
MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.
Attack patterns (CAPEC)
- FloodingCAPEC-125likelihood: High · Medium
- Excessive AllocationCAPEC-130likelihood: Medium · Medium
- XML Ping of the DeathCAPEC-147likelihood: Low · Medium
- Exponential Data ExpansionCAPEC-197likelihood: High · Medium
- Serialized Data Parameter BlowupCAPEC-229likelihood: High · High
- Serialized Data with Nested PayloadsCAPEC-230likelihood: Medium · High
- Oversized Serialized Data PayloadsCAPEC-231likelihood: Medium · High
- HTTP DoSCAPEC-469Low
ATT&CK techniques
- Network Denial of Service:Direct Network FloodT1498.001
- Network Denial of Service:Reflection AmplificationT1498.002
- Endpoint Denial of ServiceT1499
- Endpoint Denial of Service: OS Exhaustion FloodT1499.001
- Endpoint Denial of Service:Service Exhaustion FloodT1499.002
- Endpoint Denial of Service:Application Exhaustion FloodT1499.003
Noroxi analysis
No Noroxi analysis for this record yet
We don't hand-write analysis for all 385,000+ vulnerabilities; that wouldn't be honest. For notable, high-impact vulnerabilities our team writes the mechanism, detection and remediation steps.
We use this product, ask for helpChange log
- Fix✗ → ✓
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References
Vendor advisories and official records. Exploit/PoC links are deliberately left out.