#VU50779 Reachable Assertion in OpenLDAP - CVE-2021-27212

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Main Vulnerability Database Vulnerabilities #VU50779

#VU50779 Reachable Assertion in OpenLDAP - CVE-2021-27212

Published: February 17, 2021 / Updated: March 23, 2021


Vulnerability identifier: #VU50779
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-2021-27212
CWE-ID: CWE-617
Exploitation vector: Remote access
Exploit availability: No public exploit available
Vulnerable software:
OpenLDAP
Software vendor:
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 when processing LDAP packets within the issuerAndThisUpdateCheck() function in  schema_init.c. A remote attacker can send a specially crafted packet with a short timestamp to the slapd and perform a denial of service (DoS) attack.


Remediation

Install update from vendor's website.

External links