rjbs Email-MIME up to 1.953 Multipart MIME Message allocation of resources

Summaryinfo

A vulnerability, which was classified as problematic, has been found in rjbs Email-MIME up to 1.953. Affected is an unknown function of the component Multipart MIME Message Handler. This manipulation causes allocation of resources. This vulnerability is handled as CVE-2024-4140. The attack can be initiated remotely. There is not any exploit available. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability has been found in rjbs Email-MIME up to 1.953 and classified as problematic. Affected by this vulnerability is an unknown functionality of the component Multipart MIME Message Handler. The manipulation with an unknown input leads to a allocation of resources vulnerability. The CWE definition for the vulnerability is CWE-770. The product allocates a reusable resource or group of resources on behalf of an actor without imposing any restrictions on the size or number of resources that can be allocated, in violation of the intended security policy for that actor. As an impact it is known to affect availability. The summary by CVE is:

An excessive memory use issue (CWE-770) exists in Email-MIME, before version 1.954, which can cause denial of service when parsing multipart MIME messages. The patch set (from 2020 and 2024) limits excessive depth and the total number of parts.

The weakness was released by Miha Purg as 66. The advisory is shared at github.com. This vulnerability is known as CVE-2024-4140 since 04/24/2024. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1499 for this issue.

The vulnerability scanner Nessus provides a plugin with the ID 271379 (Oracle Siebel Server prior to 25.7 (October 2025 CPU)), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 1.954 eliminates this vulnerability. Applying the patch 02bf3e26812c8f38a86a33c168571f9783365df2 is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.

The vulnerability is also documented in the databases at Tenable (271379) and CERT Bund (WID-SEC-2025-2372). Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Affected

• Oracle Siebel CRM

Productinfo

Vendor

• rjbs

Name

• Email-MIME

Version

• 1.953

License

• open-source

Website

• Product: https://github.com/rjbs/Email-MIME/

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Entryinfo

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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