CVE-2024-39929

Publication date 4 July 2024

Last updated 30 May 2025

Ubuntu priority

Medium

Why this priority?

Cvss 3 Severity Score

5.4 · Medium

Score breakdown

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.

Status

Package Ubuntu Release Status
exim4 24.04 LTS noble
Fixed 4.97-4ubuntu4.1
23.10 mantic Ignored end of life, was needs-triage
22.04 LTS jammy
Fixed 4.95-4ubuntu2.6
20.04 LTS focal
Fixed 4.93-13ubuntu1.12
18.04 LTS bionic
Fixed 4.90.1-1ubuntu1.10+esm5
16.04 LTS xenial
Fixed 4.86.2-2ubuntu2.6+esm8
14.04 LTS trusty
Not affected

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Patch details

For informational purposes only. We recommend not to cherry-pick updates. How can I get the fixes?

Package Patch details
exim4

Severity score breakdown

Parameter Value
Base score 5.4 · Medium
Attack vector Network
Attack complexity Low
Privileges required None
User interaction Required
Scope Unchanged
Confidentiality Low
Integrity impact Low
Availability impact None
Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N