Phillip Szelat discovered that Exim misparses multiline MIME header filenames. A remote attacker could use this issue to bypass a MIME filename extension-blocking protection mechanism and possibly deliver executable attachments to the mailboxes of end users.
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{ "availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro", "binaries": [ { "binary_version": "4.90.1-1ubuntu1.10+esm5", "binary_name": "exim4" }, { "binary_version": "4.90.1-1ubuntu1.10+esm5", "binary_name": "exim4-base" }, { "binary_version": "4.90.1-1ubuntu1.10+esm5", "binary_name": "exim4-base-dbgsym" }, { "binary_version": "4.90.1-1ubuntu1.10+esm5", "binary_name": "exim4-config" }, { "binary_version": "4.90.1-1ubuntu1.10+esm5", "binary_name": "exim4-daemon-heavy" }, { "binary_version": "4.90.1-1ubuntu1.10+esm5", "binary_name": "exim4-daemon-heavy-dbgsym" }, { "binary_version": "4.90.1-1ubuntu1.10+esm5", "binary_name": "exim4-daemon-light" }, { "binary_version": "4.90.1-1ubuntu1.10+esm5", "binary_name": "exim4-daemon-light-dbgsym" }, { "binary_version": "4.90.1-1ubuntu1.10+esm5", "binary_name": "exim4-dev" }, { "binary_version": "4.90.1-1ubuntu1.10+esm5", "binary_name": "eximon4" }, { "binary_version": "4.90.1-1ubuntu1.10+esm5", "binary_name": "eximon4-dbgsym" } ] }
{ "availability": "No subscription required", "binaries": [ { "binary_version": "4.93-13ubuntu1.12", "binary_name": "exim4" }, { "binary_version": "4.93-13ubuntu1.12", "binary_name": "exim4-base" }, { "binary_version": "4.93-13ubuntu1.12", "binary_name": "exim4-base-dbgsym" }, { "binary_version": "4.93-13ubuntu1.12", "binary_name": "exim4-config" }, { "binary_version": "4.93-13ubuntu1.12", "binary_name": "exim4-daemon-heavy" }, { "binary_version": "4.93-13ubuntu1.12", "binary_name": "exim4-daemon-heavy-dbgsym" }, { "binary_version": "4.93-13ubuntu1.12", "binary_name": "exim4-daemon-light" }, { "binary_version": "4.93-13ubuntu1.12", "binary_name": "exim4-daemon-light-dbgsym" }, { "binary_version": "4.93-13ubuntu1.12", "binary_name": "exim4-dev" }, { "binary_version": "4.93-13ubuntu1.12", "binary_name": "eximon4" }, { "binary_version": "4.93-13ubuntu1.12", "binary_name": "eximon4-dbgsym" } ] }
{ "availability": "No subscription required", "binaries": [ { "binary_version": "4.95-4ubuntu2.6", "binary_name": "exim4" }, { "binary_version": "4.95-4ubuntu2.6", "binary_name": "exim4-base" }, { "binary_version": "4.95-4ubuntu2.6", "binary_name": "exim4-base-dbgsym" }, { "binary_version": "4.95-4ubuntu2.6", "binary_name": "exim4-config" }, { "binary_version": "4.95-4ubuntu2.6", "binary_name": "exim4-daemon-heavy" }, { "binary_version": "4.95-4ubuntu2.6", "binary_name": "exim4-daemon-heavy-dbgsym" }, { "binary_version": "4.95-4ubuntu2.6", "binary_name": "exim4-daemon-light" }, { "binary_version": "4.95-4ubuntu2.6", "binary_name": "exim4-daemon-light-dbgsym" }, { "binary_version": "4.95-4ubuntu2.6", "binary_name": "exim4-dev" }, { "binary_version": "4.95-4ubuntu2.6", "binary_name": "eximon4" }, { "binary_version": "4.95-4ubuntu2.6", "binary_name": "eximon4-dbgsym" } ] }
{ "availability": "No subscription required", "binaries": [ { "binary_version": "4.97-4ubuntu4.1", "binary_name": "exim4" }, { "binary_version": "4.97-4ubuntu4.1", "binary_name": "exim4-base" }, { "binary_version": "4.97-4ubuntu4.1", "binary_name": "exim4-base-dbgsym" }, { "binary_version": "4.97-4ubuntu4.1", "binary_name": "exim4-config" }, { "binary_version": "4.97-4ubuntu4.1", "binary_name": "exim4-daemon-heavy" }, { "binary_version": "4.97-4ubuntu4.1", "binary_name": "exim4-daemon-heavy-dbgsym" }, { "binary_version": "4.97-4ubuntu4.1", "binary_name": "exim4-daemon-light" }, { "binary_version": "4.97-4ubuntu4.1", "binary_name": "exim4-daemon-light-dbgsym" }, { "binary_version": "4.97-4ubuntu4.1", "binary_name": "exim4-dev" }, { "binary_version": "4.97-4ubuntu4.1", "binary_name": "eximon4" }, { "binary_version": "4.97-4ubuntu4.1", "binary_name": "eximon4-dbgsym" } ] }