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Last updated: 11/23/2014 5:25:58 PM

CVE Publication rate: 17.23

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National Cyber Awareness System

Vulnerability Summary for CVE-2013-4449

Original release date: 02/05/2014
Last revised: 04/19/2014
Source: US-CERT/NIST

Overview

The rwm overlay in OpenLDAP 2.4.23, 2.4.36, and earlier does not properly count references, which allows remote attackers to cause a denial of service (slapd crash) by unbinding immediately after a search request, which triggers rwm_conn_destroy to free the session context while it is being used by rwm_op_search.

Impact

CVSS Severity (version 2.0):
CVSS v2 Base Score: 4.3 (MEDIUM) (AV:N/AC:M/Au:N/C:N/I:N/A:P) (legend)
Impact Subscore: 2.9
Exploitability Subscore: 8.6
CVSS Version 2 Metrics:
Access Vector: Network exploitable
Access Complexity: Medium
Authentication: Not required to exploit
Impact Type: Allows disruption of service

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External Source: CONFIRM
Name: http://www.openldap.org/its/index.cgi/Incoming?id=7723
External Source: CONFIRM
Name: https://bugzilla.redhat.com/show_bug.cgi?id=1019490
External Source: REDHAT
Name: RHSA-2014:0126
External Source: MLIST
Name: [oss-security] 20131018 Re: CVE request: slapd segfaults on certain queries with rwm overlay enabled
External Source: MANDRIVA
Name: MDVSA-2014:026
External Source: SECTRACK
Name: 1029711
External Source: BID
Name: 63190
External Source: REDHAT
Name: RHSA-2014:0206
External Source: CISCO
Name: 20140401 Cisco Unified Communications Manager Denial of Service Vulnerability

Technical Details

Vulnerability Type (View All)