Input validation error in Debian Linux and OpenLDAP - CVE-2013-4449
Published: February 5, 2014 / Updated: August 10, 2020
Vulnerability identifier: #VU42072
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2013-4449
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Debian
OpenLDAP.org
OpenLDAP.org
Affected software:
Debian Linux
OpenLDAP
Debian Linux
OpenLDAP
Detailed vulnerability description
The vulnerability allows a remote non-authenticated attacker to perform service disruption.
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.
How to mitigate CVE-2013-4449
Install update from vendor's website.
Sources
- 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