#VU48516 Reachable Assertion in OpenLDAP - CVE-2020-25709
Published: November 18, 2020 / Updated: February 4, 2021
Vulnerability identifier: #VU48516
Vulnerability risk: Medium
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2020-25709
CWE-ID: CWE-617
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerable software:
OpenLDAP
OpenLDAP
Software vendor:
OpenLDAP.org
OpenLDAP.org
Description
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to a reachable assertion in certificateListValidate() function in schema_init.c. A remote attacker can send specially crafted packet to the slapd daemon, trigger an assertion failure and crash the service.
Remediation
Install updates from vendor's website.