CVE-2024-39929 - Vulnerability Details - OpenCVE

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.

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact Low

Integrity Impact Low

Availability Impact None

User Interaction Required

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

Exploitation poc

Automatable no

Technical Impact partial

Vendors	Products
Exim	Exim

No data.

No data.

References

Link	Providers
https://bugs.exim.org/show_bug.cgi?id=3099#c4
https://git.exim.org/exim.git/commit/1b3209b0577a9327ebb076f3b32b8a159c253f7b
https://git.exim.org/exim.git/commit/6ce5c70cff8989418e05d01fd2a57703007a6357
https://github.com/Exim/exim/compare/exim-4.98-RC2...exim-4.98-RC3
https://nvd.nist.gov/vuln/detail/CVE-2024-39929
https://www.cve.org/CVERecord?id=CVE-2024-39929
https://www.rfc-editor.org/rfc/rfc2231.txt

History

Tue, 18 Mar 2025 16:15:00 +0000

Type	Values Removed	Values Added
First Time appeared		Exim Exim exim
Weaknesses		CWE-116
CPEs		cpe:2.3:a:exim:exim::::::::
Vendors & Products		Exim Exim exim
Metrics		ssvc `{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}`

MITRE

Status: PUBLISHED

Assigner: mitre

Published: 2024-07-04T00:00:00.000Z

Updated: 2025-03-18T15:37:58.804Z

Reserved: 2024-07-04T00:00:00.000Z

Link: CVE-2024-39929

Vulnrichment

Updated: 2024-08-02T04:33:11.626Z

NVD

Status : Awaiting Analysis

Published: 2024-07-04T15:15:10.323

Modified: 2025-03-18T16:15:21.850

Link: CVE-2024-39929

Redhat

Severity : Important

Publid Date: 2024-07-04T00:00:00Z

Links: CVE-2024-39929 - Bugzilla

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