Exim 4.97.1 Security Issue

[Active8]

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.

NVD - Home

nvd.nist.gov

Bug 3099 – Incorrect parsing of multiline rfc2231 header filename

bugs.exim.org

4.98 RC is released to fix this issue

Exim Internet Mailer

Exim is a message transfer agent (MTA) developed at the University of Cambridge for use on Unix systems connected to the Internet.

git.exim.org