Vulnerability identifier: #VU38221

Vulnerability risk: Medium

CVSSv3.1: 5.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2017-14643

CWE-ID: CWE-125

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Bento4
Universal components / Libraries / Libraries used by multiple products

Vendor: axiomatic-systems

Description

The vulnerability allows a remote non-authenticated attacker to perform a denial of service (DoS) attack.

The AP4_HdlrAtom class in Core/Ap4HdlrAtom.cpp in Bento4 version 1.5.0-617 uses an incorrect character data type, leading to a heap-based buffer over-read and application crash in AP4_BytesToUInt32BE in Core/Ap4Utils.h.

Mitigation
Install update from vendor's website.

Vulnerable software versions

Bento4: 1.5.0-617

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External links
http://blogs.gentoo.org/ago/2017/09/14/bento4-heap-based-buffer-overflow-in-ap4_bytestouint32be-ap4utils-h/
http://github.com/axiomatic-systems/Bento4/commit/5eb8cf89d724ccb0b4ce5f24171ec7c11f0a7647
http://github.com/axiomatic-systems/Bento4/issues/187

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.