Tag: exim vulnerability

Exim BDAT Flaw Exposes GnuTLS Builds to Code Execution Risk

A newly discovered vulnerability, dubbed Dead.Letter, threatens Exim builds that use GnuTLS, allowing attackers to exploit a use-after-free flaw in BDAT handling and potentially execute malicious code. This critical flaw can be triggered when a specific sequence of BDAT and TLS commands is sent, leading to heap corruption and a heightened risk of code execution.