CVE-2020-13163

Name of the Vulnerable Software and Affected Versions em-imap versions 0.5 and earlier

Description The issue allows an attacker to perform a man-in-the-middle attack against users of the library. This is due to the insecure use of the eventmachine library, which fails to verify the hostname in a TLS server certificate.

Recommendations For em-imap version 0.5 and earlier, consider updating to a version that securely uses the eventmachine library, ensuring the verification of the hostname in TLS server certificates. As a temporary workaround, restrict the use of the eventmachine library until a secure version is available.