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 become unresponsive or crash. This can result in a denial of service to legitimate email traffic, potentially disrupting business operations or communications. It is strongly recommended that affected systems be updated to a patched version of Sendmail to mitigate this risk.

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