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Vulnerability record · CVE-2013-4449 · published 5 February 2014

CVE-2013-4449: Debian linux vulnerability

Debian · Debian Linux

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.

4.3 CVSS 2.0 Medium EPSS 11% · top 4.3% CWE-189 · CWE-189
4.3CVSS 2.0 base score
11%EPSS exploitation probability, 30 days
NoNot in CISA KEV
2Affected product versions listed by NVD
32References
16 Jun 2026Last modified by NVD

Description

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.

AV:N/AC:M/Au:N/C:N/I:N/A:P

Affected products

2 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://kb.juniper.net/InfoCenter/index?page=content&id=JSA10705
http://kb.juniper.net/InfoCenter/index?page=content&id=JSA10735
http://rhn.redhat.com/errata/RHSA-2014-0126.html
http://rhn.redhat.com/errata/RHSA-2014-0206.html
http://seclists.org/fulldisclosure/2019/Dec/26
http://tools.cisco.com/security/center/content/CiscoSecurityNotice/CVE-2013-4449
http://www.debian.org/security/2015/dsa-3209
http://www.mandriva.com/security/advisories?name=MDVSA-2014:026
http://www.openldap.org/its/index.cgi/Incoming?id=7723
http://www.openwall.com/lists/oss-security/2013/10/19/3
http://www.oracle.com/technetwork/topics/security/ovmbulletinjul2016-3090546.html
http://www.securityfocus.com/bid/63190
http://www.securitytracker.com/id/1029711
https://bugzilla.redhat.com/show_bug.cgi?id=1019490
https://seclists.org/bugtraq/2019/Dec/23
https://support.apple.com/kb/HT210788
http://kb.juniper.net/InfoCenter/index?page=content&id=JSA10705
http://kb.juniper.net/InfoCenter/index?page=content&id=JSA10735
http://rhn.redhat.com/errata/RHSA-2014-0126.html
http://rhn.redhat.com/errata/RHSA-2014-0206.html
http://seclists.org/fulldisclosure/2019/Dec/26
http://tools.cisco.com/security/center/content/CiscoSecurityNotice/CVE-2013-4449
http://www.debian.org/security/2015/dsa-3209
http://www.mandriva.com/security/advisories?name=MDVSA-2014:026
http://www.openldap.org/its/index.cgi/Incoming?id=7723
http://www.openwall.com/lists/oss-security/2013/10/19/3
http://www.oracle.com/technetwork/topics/security/ovmbulletinjul2016-3090546.html
http://www.securityfocus.com/bid/63190
http://www.securitytracker.com/id/1029711
https://bugzilla.redhat.com/show_bug.cgi?id=1019490
https://seclists.org/bugtraq/2019/Dec/23
https://support.apple.com/kb/HT210788

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Source: NIST National Vulnerability Database (record CVE-2013-4449), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.