Out-of-Bounds Write Vulnerability in Cyrus SASL 2.1.27 Leading to Remote Denial-of-Service in OpenLDAP

Out-of-Bounds Write Vulnerability in Cyrus SASL 2.1.27 Leading to Remote Denial-of-Service in OpenLDAP

CVE-2019-19906 · HIGH Severity

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

cyrus-sasl (aka Cyrus SASL) 2.1.27 has an out-of-bounds write leading to unauthenticated remote denial-of-service in OpenLDAP via a malformed LDAP packet. The OpenLDAP crash is ultimately caused by an off-by-one error in _sasl_add_string in common.c in cyrus-sasl.

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