This security bulletin contains one medium risk vulnerability.
Exploit availability: NoDescription
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to a NULL pointer dereference error in slapd normalization handling with modrdn. A remote non-authenticated attacker can send specially crafted packet to the slapd daemon and perform a denial of service (DoS) attack.Mitigation
Install update from vendor's website.Vulnerable software versions
OpenLDAP: 2.4 - 2.4.54
Can this vulnerability be exploited remotely?
How the attacker can exploit this vulnerability?
Is there known malware, which exploits this vulnerability?