Buffer overflow in OpenLDAP

1) Buffer overflow

EUVDB-ID: #VU32774

Risk: Low

CVSSv4.0: 1.7 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2012-1164

CWE-ID: CWE-119 - Memory corruption

Exploit availability: No

Description

The vulnerability allows a remote non-authenticated attacker to perform service disruption.

slapd in OpenLDAP before 2.4.30 allows remote attackers to cause a denial of service (assertion failure and daemon exit) via an LDAP search query with attrsOnly set to true, which causes empty attributes to be returned.

Mitigation

Install update from vendor's website.

Vulnerable software versions

OpenLDAP: 2.4.3 - 2.4.29

CPE2.3

• cpe:2.3:a:openldap_org:openldap:2.4.3:*:*:*:*:*:*:*
• cpe:2.3:a:openldap_org:openldap:2.4.6:*:*:*:*:*:*:*
• cpe:2.3:a:openldap_org:openldap:2.4.7:*:*:*:*:*:*:*

External links

https://rhn.redhat.com/errata/RHSA-2012-0899.html
https://seclists.org/fulldisclosure/2019/Dec/26
https://secunia.com/advisories/48372
https://secunia.com/advisories/49607
https://security.gentoo.org/glsa/glsa-201406-36.xml
https://www.mandriva.com/security/advisories?name=MDVSA-2012:130
https://www.openldap.org/its/index.cgi/Software%20Bugs?id=7143
https://www.openldap.org/software/release/changes.html
https://www.securityfocus.com/bid/52404
https://seclists.org/bugtraq/2019/Dec/23
https://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.

How the attacker can exploit this vulnerability?

The attacker would have to send a specially crafted request to the affected application in order to exploit this vulnerability.

Is there known malware, which exploits this vulnerability?

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