#VU35742 Out-of-bounds write in Google Android - CVE-2019-2109

Vulnerability identifier: #VU35742

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-2019-2109

CWE-ID: CWE-787

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Google Android
Operating systems & Components / Operating system

Vendor: Google

Description

The vulnerability allows a remote non-authenticated attacker to execute arbitrary code.

In MakeMPEG4VideoCodecSpecificData of AVIExtractor.cpp, there is a possible out of bounds write due to an incorrect bounds check. This could lead to remote code execution with no additional execution privileges needed. User interaction is needed for exploitation. Product: Android. Versions: Android-7.0 Android-7.1.1 Android-7.1.2 Android-8.0 Android-8.1. Android ID: A-130651570.

Mitigation
Install update from vendor's website.

Vulnerable software versions

Google Android: 7.0 - 7.1.2, 8.0 - 8.1

---

External links
https://source.android.com/security/bulletin/2019-07-01

---

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.