#VU38224 Out-of-bounds read in Bento4 - CVE-2017-14646

Vulnerability identifier: #VU38224

Vulnerability risk: Medium

CVSSv4.0: 6.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2017-14646

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_AvccAtom and AP4_HvccAtom classes in Bento4 version 1.5.0-617 do not properly validate data sizes, leading to a heap-based buffer over-read and application crash in AP4_DataBuffer::SetData in Core/Ap4DataBuffer.cpp.

Mitigation
Install update from vendor's website.

Vulnerable software versions

Bento4: 1.5.0-617

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External links
https://blogs.gentoo.org/ago/2017/09/14/bento4-heap-based-buffer-overflow-in-ap4_databuffersetdata-ap4databuffer-cpp/
https://github.com/axiomatic-systems/Bento4/commit/53499d8d4c69142137c7c7f0097a444783fdeb90
https://github.com/axiomatic-systems/Bento4/issues/188

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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.