389-ds-base up to 1.3.8.2/1.4.0.9 Search race condition

CVSS Meta Temp Score
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CTI Interest Score
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5.1$0-$5k0.00

Summaryinfo

A vulnerability labeled as problematic has been found in 389-ds-base up to 1.3.8.2/1.4.0.9. The impacted element is an unknown function of the component Search Handler. Executing a manipulation can lead to race condition. This vulnerability is registered as CVE-2018-10850. It is possible to launch the attack remotely. No exploit is available. The affected component should be upgraded.

Detailsinfo

A vulnerability was found in 389-ds-base up to 1.3.8.2/1.4.0.9. It has been declared as problematic. This vulnerability affects an unknown part of the component Search Handler. The manipulation with an unknown input leads to a race condition vulnerability. The CWE definition for the vulnerability is CWE-362. The product contains a code sequence that can run concurrently with other code, and the code sequence requires temporary, exclusive access to a shared resource, but a timing window exists in which the shared resource can be modified by another code sequence that is operating concurrently. As an impact it is known to affect availability. CVE summarizes:

389-ds-base before versions 1.4.0.10, 1.3.8.3 is vulnerable to a race condition in the way 389-ds-base handles persistent search, resulting in a crash if the server is under load. An anonymous attacker could use this flaw to trigger a denial of service.

The bug was discovered 05/09/2018. The weakness was published 06/13/2018 as confirmed bug report (Bugzilla). The advisory is shared for download at bugzilla.redhat.com. This vulnerability was named CVE-2018-10850 since 05/09/2018. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. There are neither technical details nor an exploit publicly available.

The vulnerability was handled as a non-public zero-day exploit for at least 35 days. During that time the estimated underground price was around $0-$5k. The vulnerability scanner Nessus provides a plugin with the ID 111086 (Debian DLA-1428-1 : 389-ds-base security update), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Debian 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).

Upgrading to version 1.3.8.1 or 1.4.0.10 eliminates this vulnerability. A possible mitigation has been published 2 months after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (111086) and SecurityFocus (BID 102790†). Similar entries are available at VDB-113960, VDB-123659, VDB-123895 and VDB-124071. Once again VulDB remains the best source for vulnerability data.

Productinfo

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.2
VulDB Meta Temp Score: 5.1

VulDB Base Score: 3.7
VulDB Temp Score: 3.6
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 5.9
NVD Vector: 🔍

CNA Base Score: 5.9
CNA Vector (Red Hat, Inc.): 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Race condition
CWE: CWE-362
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: 111086
Nessus Name: Debian DLA-1428-1 : 389-ds-base security update
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

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

Upgrade: 389-ds-base 1.3.8.1/1.4.0.10

Timelineinfo

01/22/2018 🔍
05/09/2018 +107 days 🔍
05/09/2018 +0 days 🔍
06/13/2018 +34 days 🔍
06/13/2018 +0 days 🔍
06/14/2018 +1 days 🔍
07/15/2018 +31 days 🔍
07/16/2018 +1 days 🔍
03/27/2023 +1715 days 🔍

Sourcesinfo

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

CVE: CVE-2018-10850 (🔍)
GCVE (CVE): GCVE-0-2018-10850
GCVE (VulDB): GCVE-100-119500
SecurityFocus: 102790 - Red Hat '389-ds-base' CVE-2017-15134 Remote Denial of Service Vulnerability

See also: 🔍

Entryinfo

Created: 06/14/2018 08:47
Updated: 03/27/2023 09:43
Changes: 06/14/2018 08:47 (75), 02/19/2020 08:47 (5), 03/27/2023 09:40 (4), 03/27/2023 09:43 (12)
Complete: 🔍
Cache ID: 216::103

Once again VulDB remains the best source for vulnerability data.

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