It was discovered that Exim did not enforce STARTTLS sync point on client side. An attacker could possibly use this issue to perform response injection during MTA SMTP sending.
{ "availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro", "binaries": [ { "binary_version": "4.82-3ubuntu2.4+esm8", "binary_name": "exim4" }, { "binary_version": "4.82-3ubuntu2.4+esm8", "binary_name": "exim4-base" }, { "binary_version": "4.82-3ubuntu2.4+esm8", "binary_name": "exim4-base-dbgsym" }, { "binary_version": "4.82-3ubuntu2.4+esm8", "binary_name": "exim4-config" }, { "binary_version": "4.82-3ubuntu2.4+esm8", "binary_name": "exim4-daemon-heavy" }, { "binary_version": "4.82-3ubuntu2.4+esm8", "binary_name": "exim4-daemon-heavy-dbg" }, { "binary_version": "4.82-3ubuntu2.4+esm8", "binary_name": "exim4-daemon-heavy-dbgsym" }, { "binary_version": "4.82-3ubuntu2.4+esm8", "binary_name": "exim4-daemon-light" }, { "binary_version": "4.82-3ubuntu2.4+esm8", "binary_name": "exim4-daemon-light-dbg" }, { "binary_version": "4.82-3ubuntu2.4+esm8", "binary_name": "exim4-daemon-light-dbgsym" }, { "binary_version": "4.82-3ubuntu2.4+esm8", "binary_name": "exim4-dbg" }, { "binary_version": "4.82-3ubuntu2.4+esm8", "binary_name": "exim4-dev" }, { "binary_version": "4.82-3ubuntu2.4+esm8", "binary_name": "eximon4" }, { "binary_version": "4.82-3ubuntu2.4+esm8", "binary_name": "eximon4-dbgsym" } ] }
{ "availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro", "binaries": [ { "binary_version": "4.86.2-2ubuntu2.6+esm7", "binary_name": "exim4" }, { "binary_version": "4.86.2-2ubuntu2.6+esm7", "binary_name": "exim4-base" }, { "binary_version": "4.86.2-2ubuntu2.6+esm7", "binary_name": "exim4-base-dbgsym" }, { "binary_version": "4.86.2-2ubuntu2.6+esm7", "binary_name": "exim4-config" }, { "binary_version": "4.86.2-2ubuntu2.6+esm7", "binary_name": "exim4-daemon-heavy" }, { "binary_version": "4.86.2-2ubuntu2.6+esm7", "binary_name": "exim4-daemon-heavy-dbg" }, { "binary_version": "4.86.2-2ubuntu2.6+esm7", "binary_name": "exim4-daemon-heavy-dbgsym" }, { "binary_version": "4.86.2-2ubuntu2.6+esm7", "binary_name": "exim4-daemon-light" }, { "binary_version": "4.86.2-2ubuntu2.6+esm7", "binary_name": "exim4-daemon-light-dbg" }, { "binary_version": "4.86.2-2ubuntu2.6+esm7", "binary_name": "exim4-daemon-light-dbgsym" }, { "binary_version": "4.86.2-2ubuntu2.6+esm7", "binary_name": "exim4-dbg" }, { "binary_version": "4.86.2-2ubuntu2.6+esm7", "binary_name": "exim4-dev" }, { "binary_version": "4.86.2-2ubuntu2.6+esm7", "binary_name": "eximon4" }, { "binary_version": "4.86.2-2ubuntu2.6+esm7", "binary_name": "eximon4-dbgsym" } ] }
{ "availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro", "binaries": [ { "binary_version": "4.90.1-1ubuntu1.10+esm4", "binary_name": "exim4" }, { "binary_version": "4.90.1-1ubuntu1.10+esm4", "binary_name": "exim4-base" }, { "binary_version": "4.90.1-1ubuntu1.10+esm4", "binary_name": "exim4-base-dbgsym" }, { "binary_version": "4.90.1-1ubuntu1.10+esm4", "binary_name": "exim4-config" }, { "binary_version": "4.90.1-1ubuntu1.10+esm4", "binary_name": "exim4-daemon-heavy" }, { "binary_version": "4.90.1-1ubuntu1.10+esm4", "binary_name": "exim4-daemon-heavy-dbgsym" }, { "binary_version": "4.90.1-1ubuntu1.10+esm4", "binary_name": "exim4-daemon-light" }, { "binary_version": "4.90.1-1ubuntu1.10+esm4", "binary_name": "exim4-daemon-light-dbgsym" }, { "binary_version": "4.90.1-1ubuntu1.10+esm4", "binary_name": "exim4-dev" }, { "binary_version": "4.90.1-1ubuntu1.10+esm4", "binary_name": "eximon4" }, { "binary_version": "4.90.1-1ubuntu1.10+esm4", "binary_name": "eximon4-dbgsym" } ] }
{ "availability": "No subscription required", "binaries": [ { "binary_version": "4.93-13ubuntu1.11", "binary_name": "exim4" }, { "binary_version": "4.93-13ubuntu1.11", "binary_name": "exim4-base" }, { "binary_version": "4.93-13ubuntu1.11", "binary_name": "exim4-base-dbgsym" }, { "binary_version": "4.93-13ubuntu1.11", "binary_name": "exim4-config" }, { "binary_version": "4.93-13ubuntu1.11", "binary_name": "exim4-daemon-heavy" }, { "binary_version": "4.93-13ubuntu1.11", "binary_name": "exim4-daemon-heavy-dbgsym" }, { "binary_version": "4.93-13ubuntu1.11", "binary_name": "exim4-daemon-light" }, { "binary_version": "4.93-13ubuntu1.11", "binary_name": "exim4-daemon-light-dbgsym" }, { "binary_version": "4.93-13ubuntu1.11", "binary_name": "exim4-dev" }, { "binary_version": "4.93-13ubuntu1.11", "binary_name": "eximon4" }, { "binary_version": "4.93-13ubuntu1.11", "binary_name": "eximon4-dbgsym" } ] }