Vulnerability identifier: #VU6842
Vulnerability risk: Low
CVSSv3.1: 5.7 [CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]
CVE-ID:
CWE-ID:
CWE-415
Exploitation vector: Network
Exploit availability: No
Vulnerable software:
OpenLDAP
Server applications /
Directory software, identity management
Vendor: OpenLDAP.org
Description
The vulnerability allows a remote authenticated attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to a double free error within servers/slapd/back-mdb/search.c when processing search requests, which include the Paged Results control with a page size of 0. A remote authenticated attacker can issue a directory search and crash the slapd daemon.
Successful exploitation of the vulnerability may allow a remote authenticated attacker to perform a denial of service (DoS) attack.
Mitigation
Update to version 2.4.45.
Vulnerable software versions
OpenLDAP: 1.0 - 2.4.44
External links
http://www.openldap.org/its/?findid=8655
http://www.openldap.org/devel/gitweb.cgi?p=openldap.git;a=commit;h=0cee1ffb6021b1aae3fcc9581699da1c85a6dd6e
http://www.openldap.org/software/release/changes.html
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.