OpenLDAP up to 2.4.44 slapd search.c double free

CVSS Meta Temp Score
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CTI Interest Score
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5.3$0-$5k0.00

Summaryinfo

A vulnerability was found in OpenLDAP up to 2.4.44. It has been declared as problematic. This issue affects some unknown processing of the file servers/slapd/back-mdb/search.c of the component slapd. Executing a manipulation with the input 0 can lead to double free. This vulnerability is tracked as CVE-2017-9287. The attack can be launched remotely. No exploit exists. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability was found in OpenLDAP up to 2.4.44 (Directory Service Software). It has been declared as problematic. This vulnerability affects some unknown processing of the file servers/slapd/back-mdb/search.c of the component slapd. The manipulation with the input value 0 leads to a double free vulnerability. The CWE definition for the vulnerability is CWE-415. The product calls free() twice on the same memory address, potentially leading to modification of unexpected memory locations. As an impact it is known to affect availability. CVE summarizes:

servers/slapd/back-mdb/search.c in OpenLDAP through 2.4.44 is prone to a double free vulnerability. A user with access to search the directory can crash slapd by issuing a search including the Paged Results control with a page size of 0.

The bug was discovered 05/31/2017. The weakness was disclosed 05/29/2017 by Andy (Website). The advisory is available at openldap.org. This vulnerability was named CVE-2017-9287 since 05/29/2017. The attack can be initiated remotely. Required for exploitation is a single authentication. Technical details are known, but there is no available exploit.

The vulnerability scanner Nessus provides a plugin with the ID 100576 (Debian DLA-972-1 : openldap 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 256272 (CentOS Security Update for openldap (CESA-2017:1852)).

Upgrading eliminates this vulnerability. A possible mitigation has been published 3 days after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (100576), SecurityFocus (BID 98736†) and SecurityTracker (ID 1038591†). If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Type

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.4
VulDB Meta Temp Score: 5.3

VulDB Base Score: 4.3
VulDB Temp Score: 4.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 6.5
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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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: 100576
Nessus Name: Debian DLA-972-1 : openldap security update
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 703868
OpenVAS Name: Debian Security Advisory DSA 3868-1 (openldap - security update)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

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

Timelineinfo

05/29/2017 🔍
05/29/2017 +0 days 🔍
05/29/2017 +0 days 🔍
05/29/2017 +0 days 🔍
05/29/2017 +0 days 🔍
05/31/2017 +2 days 🔍
05/31/2017 +0 days 🔍
06/01/2017 +1 days 🔍
06/02/2017 +1 days 🔍
12/07/2022 +2014 days 🔍

Sourcesinfo

Advisory: RHSA-2017:1852
Researcher: Ryan Tandy (Andy)
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2017-9287 (🔍)
GCVE (CVE): GCVE-0-2017-9287
GCVE (VulDB): GCVE-100-101842

OVAL: 🔍

SecurityFocus: 98736 - OpenLDAP 'servers/slapd/back-mdb/search.c' Denial of Service Vulnerability
SecurityTracker: 1038591

Entryinfo

Created: 05/29/2017 23:58
Updated: 12/07/2022 14:04
Changes: 05/29/2017 23:58 (79), 10/13/2019 09:19 (7), 12/26/2020 06:29 (3), 12/07/2022 14:04 (3)
Complete: 🔍
Cache ID: 216::103

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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