Samba up to 4.7.11/4.8.6/4.9.2 LDAP Server resource consumption
CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
---|---|---|
5.4 | $0-$5k | 0.00 |
A vulnerability, which was classified as problematic, was found in Samba up to 4.7.11/4.8.6/4.9.2 (File Transfer Software). This affects an unknown part of the component LDAP Server. The manipulation with an unknown input leads to a resource consumption vulnerability. CWE is classifying the issue as CWE-400. The product does not properly control the allocation and maintenance of a limited resource, thereby enabling an actor to influence the amount of resources consumed, eventually leading to the exhaustion of available resources. This is going to have an impact on availability. The summary by CVE is:
A denial of service vulnerability was discovered in Samba's LDAP server before versions 4.7.12, 4.8.7, and 4.9.3. A CNAME loop could lead to infinite recursion in the server. An unprivileged local attacker could create such an entry, leading to denial of service.
The bug was discovered 11/28/2018. The weakness was presented 11/28/2018 as confirmed bug report (Bugzilla). It is possible to read the advisory at bugzilla.redhat.com. This vulnerability is uniquely identified as CVE-2018-14629 since 07/27/2018. Attacking locally is a requirement. A authentication is necessary for exploitation. The technical details are unknown and an exploit is not publicly available.
The vulnerability scanner Nessus provides a plugin with the ID 119246 (FreeBSD : samba -- multiple vulnerabilities (54976998-f248-11e8-81e2-005056a311d1)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family FreeBSD Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 197311 (Ubuntu Security Notification for Samba Vulnerabilities (USN-3827-1)).
Upgrading to version 4.7.12, 4.8.7 or 4.9.3 eliminates this vulnerability. A possible mitigation has been published even before and not after the disclosure of the vulnerability.
The vulnerability is also documented in the vulnerability database at Tenable (119246). See 127270, 127271, 127272 and 127273 for similar entries.
Product
Type
Name
Version
- 4.7.0
- 4.7.1
- 4.7.2
- 4.7.3
- 4.7.4
- 4.7.5
- 4.7.6
- 4.7.7
- 4.7.8
- 4.7.9
- 4.7.10
- 4.7.11
- 4.8.0
- 4.8.1
- 4.8.2
- 4.8.3
- 4.8.4
- 4.8.5
- 4.8.6
- 4.9.0
- 4.9.1
- 4.9.2
License
CPE 2.3
CPE 2.2
CVSSv4
VulDB CVSS-B Score: 🔍VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍
CVSSv3
VulDB Meta Base Score: 5.4VulDB Meta Temp Score: 5.4
VulDB Base Score: 3.3
VulDB Temp Score: 3.2
VulDB Vector: 🔍
VulDB Reliability: 🔍
NVD Base Score: 6.5
NVD Vector: 🔍
CNA Base Score: 6.5
CNA Vector (Red Hat, Inc.): 🔍
CVSSv2
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Vector | Complexity | Authentication | Confidentiality | Integrity | Availability |
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unlock | unlock | unlock | unlock | unlock | unlock |
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍
NVD Base Score: 🔍
Exploiting
Class: Resource consumptionCWE: CWE-400 / CWE-404
CAPEC: 🔍
ATT&CK: 🔍
Local: Yes
Remote: No
Availability: 🔍
Status: Not defined
EPSS Score: 🔍
EPSS Percentile: 🔍
Price Prediction: 🔍
Current Price Estimation: 🔍
0-Day | unlock | unlock | unlock | unlock |
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Today | unlock | unlock | unlock | unlock |
Nessus ID: 119246
Nessus Name: FreeBSD : samba -- multiple vulnerabilities (54976998-f248-11e8-81e2-005056a311d1)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍
Qualys ID: 🔍
Qualys Name: 🔍
Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: UpgradeStatus: 🔍
0-Day Time: 🔍
Upgrade: Samba 4.7.12/4.8.7/4.9.3
Timeline
07/27/2018 🔍08/14/2018 🔍
11/27/2018 🔍
11/28/2018 🔍
11/28/2018 🔍
11/28/2018 🔍
11/28/2018 🔍
11/29/2018 🔍
06/12/2023 🔍
Sources
Product: samba.orgAdvisory: USN-3827-1
Status: Confirmed
Confirmation: 🔍
CVE: CVE-2018-14629 (🔍)
OVAL: 🔍
SecurityFocus: 106022 - Samba CVE-2018-14629 Remote Denial of Service Vulnerability
See also: 🔍
Entry
Created: 11/29/2018 07:35Updated: 06/12/2023 07:38
Changes: 11/29/2018 07:35 (74), 04/15/2020 20:14 (5), 06/12/2023 07:32 (4), 06/12/2023 07:38 (12)
Complete: 🔍
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