Cyrus SASL could be made to crash or execute arbitrary code if it received a specially crafted LDAP packet.
It was discovered that Cyrus SASL incorrectly handled certain LDAP packets. An attacker could possibly use this issue to execute arbitrary code or cause a denial of service.
28 January 2020
A security issue affects these releases of Ubuntu and its derivatives:
Cyrus SASL could be made to crash or execute arbitrary code if it received a specially crafted LDAP packet.
It was discovered that Cyrus SASL incorrectly handled certain LDAP packets. An attacker could possibly use this issue to execute arbitrary code or cause a denial of service.
The problem can be corrected by updating your system to the following package versions:
To update your system, please follow these instructions: https://wiki.ubuntu.com/Security/Upgrades.
After a standard system update you need to restart services using SASL to effect the necessary changes.