CVE-2024-39929 Affecting exim4 package, versions <4.94.2-7+deb11u3


Severity

Recommended
low

Based on default assessment until relevant scores are available

    Threat Intelligence

    EPSS
    0.05% (17th percentile)

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  • Snyk ID SNYK-DEBIAN11-EXIM4-7424567
  • published 5 Jul 2024
  • disclosed 4 Jul 2024

How to fix?

Upgrade Debian:11 exim4 to version 4.94.2-7+deb11u3 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream exim4 package and not the exim4 package as distributed by Debian. See How to fix? for Debian:11 relevant fixed versions and status.

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.