VDB-124071 · CVE-2018-14638 · RHSA-2018:2757

389-ds-base up to 1.3.8.4-12 ns-slapd delete_passwdPolicy double free

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6.7	$0-$5k	0.00

Summaryinfo

A vulnerability has been found in 389-ds-base up to 1.3.8.4-12 and classified as problematic. This affects the function delete_passwdPolicy of the component ns-slapd. Performing a manipulation results in double free. This vulnerability is identified as CVE-2018-14638. The attack can be initiated remotely. There is not any exploit available. It is recommended to apply a patch to fix this issue.

Detailsinfo

A vulnerability was found in 389-ds-base up to 1.3.8.4-12. It has been classified as problematic. This affects the function delete_passwdPolicy of the component ns-slapd. The manipulation with an unknown input leads to a double free vulnerability. CWE is classifying the issue as CWE-415. The product calls free() twice on the same memory address, potentially leading to modification of unexpected memory locations. This is going to have an impact on availability. The summary by CVE is:

A flaw was found in 389-ds-base before version 1.3.8.4-13. The process ns-slapd crashes in delete_passwdPolicy function when persistent search connections are terminated unexpectedly leading to remote denial of service.

The bug was discovered 09/18/2018. The weakness was released 09/14/2018 (Website). It is possible to read the advisory at access.redhat.com. This vulnerability is uniquely identified as CVE-2018-14638 since 07/27/2018. The exploitability is told to be easy. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. Technical details of the vulnerability are known, but there is no available exploit.

The vulnerability scanner Nessus provides a plugin with the ID 117774 (RHEL 7 : 389-ds-base (RHSA-2018:2757)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Red Hat Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 351398 (Amazon Linux Security Advisory for 389-ds-base: ALAS-2018-1094).

Applying the patch 1.3.8.4-13 is able to eliminate this problem. A possible mitigation has been published 2 weeks after the disclosure of the vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (117774). Entries connected to this vulnerability are available at VDB-119500, VDB-123659 and VDB-123895. Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Name

389-ds-base

Version

1.3.8.4-12

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.8
VulDB Meta Temp Score: 6.7

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔍

CNA Base Score: 7.5
CNA Vector (Red Hat, Inc.): 🔍

CVSSv2info

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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Double free
CWE: CWE-415 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 117774
Nessus Name: RHEL 7 : 389-ds-base (RHSA-2018:2757)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Patch
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Patch: 1.3.8.4-13

Timelineinfo

07/27/2018 🔍
09/14/2018 +49 days 🔍
09/14/2018 +0 days 🔍
09/16/2018 +2 days 🔍
09/18/2018 +2 days 🔍
09/25/2018 +7 days 🔍
09/27/2018 +2 days 🔍
05/16/2023 +1692 days 🔍

Sourcesinfo

Advisory: RHSA-2018:2757
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2018-14638 (🔍)
GCVE (CVE): GCVE-0-2018-14638
GCVE (VulDB): GCVE-100-124071
See also: 🔍

Entryinfo

Created: 09/16/2018 07:30
Updated: 05/16/2023 12:07
Changes: 09/16/2018 07:30 (72), 03/24/2020 07:25 (3), 05/16/2023 11:59 (4), 05/16/2023 12:07 (12)
Complete: 🔍
Cache ID: 216::103