CVE-1999-0393

Summary

CVE-1999-0393 is a denial-of-service vulnerability affecting Sendmail versions 8.8.x and 8.9.2. Malicious actors can exploit this issue by sending emails with an excessive number of headers, causing the mail server to crash and become unresponsive. This can result in a denial of service to the affected system and potential disruption of email services. It is recommended that affected organizations upgrade to a patched version of Sendmail or implement measures to limit the size of incoming email headers to mitigate this risk.

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