Out-of-bounds write in Google, Google Android

1) Out-of-bounds write

EUVDB-ID: #VU34480

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-2018-21049

CWE-ID: CWE-787 - Out-of-bounds write

Exploit availability: No

Description

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

An issue was discovered on Samsung mobile devices with N(7.x) and O(8.X) (Exynos chipsets) software. There is an arbitrary memory write in a Trustlet because a secure driver allows access to sensitive APIs. The Samsung ID is SVE-2018-12881 (November 2018).

Mitigation

Install update from vendor's website.

Vulnerable software versions

Google Android: 7.0 - 8.1

CPE2.3

• cpe:2.3:o:google:android:7.0:*:*:*:*:*:*:*
• cpe:2.3:o:google:android:*:*:*:*:*:*:*:*

External links

https://security.samsungmobile.com/securityUpdate.smsb

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.