CVE-2013-4449
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…
Does this matter?
EPSS puts the probability of exploitation in the next 30 days at 10.9%, higher than 96% of all known CVEs. Patch or mitigate before the next change window.
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.
- CVSS 2.0
- 4.3 MEDIUMAV:N/AC:M/Au:N/C:N/I:N/A:P
- EPSS
- 10.91% probability · 96th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-189
- Affected
- debian/debian linux · openldap/openldap
- Source
- secalert@redhat.com
EPSS 10.9% since 4 November 2026; no change recorded yet. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- 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
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.