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 - 2.4.54External links
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.