Related Vulnerabilities: CVE-2020-28022  

A heap out-of-bounds read and write in extract_option() has been found in Exim before version 4.94.2.

Severity Medium

Remote Yes

Type Incorrect calculation

Description

A heap out-of-bounds read and write in extract_option() has been found in Exim before version 4.94.2.

AVG-1911 exim 4.94-3 Medium Vulnerable

https://www.openwall.com/lists/oss-security/2021/05/04/6
https://www.qualys.com/2021/05/04/21nails/21nails.txt