Vulnerability identifier: #VU38217

Vulnerability risk: High

CVSSv3.1: 7.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2017-14639

CWE-ID: CWE-843

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 execute arbitrary code.

AP4_VisualSampleEntry::ReadFields in Core/Ap4SampleEntry.cpp in Bento4 1.5.0-617 uses incorrect character data types, which causes a stack-based buffer underflow and out-of-bounds write, leading to denial of service (application crash) or possibly unspecified other impact.

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-stack-based-buffer-underflow-in-ap4_visualsampleentryreadfields-ap4sampleentry-cpp/
http://github.com/axiomatic-systems/Bento4/commit/03d1222ab9c2ce779cdf01bdb96cdd69cbdcfeda
http://github.com/axiomatic-systems/Bento4/issues/190

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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.