Summaryinfo

A vulnerability was found in libmimedir and classified as critical. Affected is the function free of the component VCF File Handler. The manipulation as part of NULL Byte results in injection. This vulnerability is cataloged as CVE-2015-3205. Furthermore, there is an exploit available.

Detailsinfo

A vulnerability, which was classified as critical, was found in libmimedir (the affected version is unknown). Affected is the function free of the component VCF File Handler. The manipulation as part of a NULL Byte leads to a injection vulnerability. CWE is classifying the issue as CWE-74. The product constructs all or part of a command, data structure, or record using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify how it is parsed or interpreted when it is sent to a downstream component. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

libmimedir allows remote attackers to execute arbitrary code via a VCF file with two NULL bytes at the end of the file, related to "free" function calls in the "lexer's memory clean-up procedure."

The weakness was shared 06/16/2015 by Jeremy Brown with Brown (Website). The advisory is available at exploit-db.com. This vulnerability is traded as CVE-2015-3205 since 04/10/2015. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. Technical details and a public exploit are known. This vulnerability is assigned to T1055 by the MITRE ATT&CK project.

The exploit is shared for download at exploit-db.com. It is declared as proof-of-concept.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the databases at Exploit-DB (37249) and SecurityFocus (BID 75147†). VulDB is the best source for vulnerability data and more expert information about this specific topic.

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• libmimedir

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