CLSA-2023-1688070370 Fix CVE(s): CVE-2021-38371

SECURITY UPDATE: Response injection buffering during MTA SMTP sending - debian/patches/CVE-2021-38371.patch: Enforce STARTTLS sync point, client side in src/transports/smtp.c - CVE-2021-38371...

CLSA-2023-1687794906 exim: Fix of CVE-2021-38371

CVE-2021-38371: Enforce STARTTLS sync point, client side in src/transports/smtp.c...