#VU40150 Permissions, Privileges, and Access Controls in Google Android - CVE-2016-3840

Vulnerability identifier: #VU40150

Vulnerability risk: High

CVSSv4.0: 8.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2016-3840

CWE-ID: CWE-264

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.

Conscrypt in Android 4.x before 4.4.4, 5.0.x before 5.0.2, 5.1.x before 5.1.1, and 6.x before 2016-08-05 does not properly identify session reuse, which allows remote attackers to execute arbitrary code via unspecified vectors, aka internal bug 28751153.

Mitigation
Install update from vendor's website.

Vulnerable software versions

Google Android: 4.0 - 4.4.3, 5.0 - 5.1.0, 6.0 - 6.0.1

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External links
https://source.android.com/security/bulletin/2016-08-01.html
https://www.securityfocus.com/bid/92229
https://android.googlesource.com/platform/external/conscrypt/+/5af5e93463f4333187e7e35f3bd2b846654aa214

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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.