#VU32435 Input validation error in OpenLDAP


Published: 2015-02-12 | Updated: 2020-07-28

Vulnerability identifier: #VU32435

Vulnerability risk: Medium

CVSSv3.1: 4.6 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:U/RL:O/RC:C]

CVE-ID: CVE-2015-1545

CWE-ID: CWE-20

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
OpenLDAP
Server applications / Directory software, identity management

Vendor: OpenLDAP.org

Description

The vulnerability allows remote attackers to perform a denial of service (DoS) attack.

The vulnerability exists due to insufficient validation of user-supplied input. A remote attacker can cause a denial of service (NULL pointer dereference and crash) via an empty attribute list in a deref control in a search request.

Mitigation
Update to version 2.4.41.

Vulnerable software versions

OpenLDAP: 2.4.13 - 2.4.40


External links
http://lists.apple.com/archives/security-announce/2015/Apr/msg00001.html
http://lists.opensuse.org/opensuse-updates/2015-07/msg00069.html
http://seclists.org/fulldisclosure/2019/Dec/26
http://secunia.com/advisories/62787
http://www.debian.org/security/2015/dsa-3209
http://www.mandriva.com/security/advisories?name=MDVSA-2015:073
http://www.mandriva.com/security/advisories?name=MDVSA-2015:074
http://www.openldap.org/devel/gitweb.cgi?p=openldap.git;a=commit;h=c32e74763f77675b9e144126e375977ed6dc562c
http://www.openldap.org/its/?findid=8027
http://www.openwall.com/lists/oss-security/2015/02/07/3
http://www.oracle.com/technetwork/topics/security/bulletinjul2015-2511963.html
http://www.securityfocus.com/bid/72519
http://www.securitytracker.com/id/1032399
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=776988
http://exchange.xforce.ibmcloud.com/vulnerabilities/100937
http://seclists.org/bugtraq/2019/Dec/23
http://support.apple.com/HT204659
http://support.apple.com/kb/HT210788


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.


Latest bulletins with this vulnerability