Exim through 4.97.1 misparses a multiline RFC 2231 header filename, and thus remote attackers can bypass a $mime_filename extension-blocking protection mechanism, and potentially deliver executable attachments to the mailboxes of end users.
Name | Vendor | Start Version | End Version |
---|---|---|---|
Exim4 | Ubuntu | devel | * |
Exim4 | Ubuntu | esm-infra/bionic | * |
Exim4 | Ubuntu | esm-infra/xenial | * |
Exim4 | Ubuntu | focal | * |
Exim4 | Ubuntu | jammy | * |
Exim4 | Ubuntu | mantic | * |
Exim4 | Ubuntu | noble | * |