#VU36134 Out-of-bounds read in Bento4 - CVE-2019-8378

Vulnerability identifier: #VU36134

Vulnerability risk: High

CVSSv4.0: 6.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2019-8378

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 attacker to gain access to potentially sensitive information.

The vulnerability exists due to a boundary condition in AP4_BitStream::ReadBytes() in Codecs/Ap4BitStream.cpp, a similar issue to CVE-2017-14645. It can be triggered by sending a crafted file to the aac2mp4 binary. It allows an attacker to cause a Denial of Service (Segmentation fault) or possibly have unspecified other impact. A remote attacker can pass specially crafted data to the application, trigger out-of-bounds read error and read contents of memory on the system.

Mitigation
Cybersecurity Help is currently unaware of any official solution to address this vulnerability.

Vulnerable software versions

Bento4: 1.5.1-628

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External links
https://github.com/axiomatic-systems/Bento4/issues/363
https://research.loginsoft.com/bugs/a-heap-buffer-overflow-vulnerability-in-the-function-ap4_bitstreamreadbytes-bento4-1-5-1-628/

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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.