Input validation error in Google, Google Android

1) Input validation error

EUVDB-ID: #VU40185

Risk: Low

CVSSv4.0: 4.4 [CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2016-3757

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

Description

The vulnerability allows a local authenticated user to execute arbitrary code.

The print_maps function in toolbox/lsof.c 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 2016-07-01 allows user-assisted attackers to gain privileges via a crafted application that attempts to list a long name of a memory-mapped file, aka internal bug 28175237. NOTE: print_maps is not related to the Vic Abell lsof product.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Google Android: 4.0 - 6.0.1

CPE2.3

• cpe:2.3:o:google:android:4.0:*:*:*:*:*:*:*
• cpe:2.3:o:google:android:*:*:*:*:*:*:*:*

External links

https://source.android.com/security/bulletin/2016-07-01.html
https://android.googlesource.com/platform/system/core/+/ae18eb014609948a40e22192b87b10efc680daa7

Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.