Improper Validation of Array Index in Google, Google Android

1) Improper Validation of Array Index

EUVDB-ID: #VU36725

Risk: High

CVSSv3.1: 7.7 [CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2018-11263

CWE-ID: CWE-129 - Improper Validation of Array Index

Exploit availability: No

Description

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

In all Android releases (Android for MSM, Firefox OS for MSM, QRD Android) from CAF using the Linux kernel, radio_id is received from the FW and is used to access the buffer to copy the radio stats received for each radio from FW. If the radio_id received from the FW is greater than or equal to maximum, an OOB write will occur. On supported Google Pixel and Nexus devices, this has been addressed in security patch level 2018-08-05.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Google Android: All versions

CPE2.3

External links

http://source.android.com/security/bulletin/pixel/2018-08-01
http://source.codeaurora.org/quic/la/platform/vendor/qcom-opensource/wlan/qcacld-3.0/commit/?id=476ad571ec5b42c42bb1ce9468f18c7e996646ed
http://www.codeaurora.org/security-bulletin/2018/08/06/august-2018-code-aurora-security-bulletin

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the local network (LAN).

Is there known malware, which exploits this vulnerability?

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