#VU40356 Input validation error in Google Android - CVE-2016-2414

Vulnerability identifier: #VU40356

Vulnerability risk: Medium

CVSSv4.0: 4.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2016-2414

CWE-ID: CWE-20

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 perform a denial of service (DoS) attack.

The Minikin library in Android 5.0.x before 5.0.2, 5.1.x before 5.1.1, and 6.x before 2016-04-01 does not properly consider negative size values in font data, which allows remote attackers to cause a denial of service (memory corruption and reboot loop) via a crafted font, aka internal bug 26413177.

Mitigation
Install update from vendor's website.

Vulnerable software versions

Google Android: 5.0 - 5.1.0, 6.0 - 6.0.1

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External links
https://source.android.com/security/bulletin/2016-04-02.html
https://android.googlesource.com/platform/frameworks/minikin/+/ca8ac8acdad662230ae37998c6c4091bb39402b6
https://android.googlesource.com/platform/frameworks/minikin/+/f4785aa1947b8d22d5b19559ef1ca526d98e0e73
https://code.google.com/p/android/issues/detail?id=192618

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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.