A vulnerability was found in Asterisk up to 18.9-cert11/18.24.2/20.9.2/20.7-cert1/21.4.2. It has been classified as critical. Affected is an unknown function of the component SIP Request Handler. The manipulation leads to unchecked return value.

This vulnerability is traded as CVE-2024-42491. It is possible to launch the attack remotely. There is no exploit available.

It is recommended to upgrade the affected component.