SB2018091838 - Improper Validation of Array Index in Google, Google Android

Description

This security bulletin contains information about 1 vulnerability.

1) Improper Validation of Array Index (CVE-ID: CVE-2018-11299)

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

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

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

In all android releases (Android for MSM, Firefox OS for MSM, QRD Android) from CAF using the linux kernel, when WLAN FW has not filled the vdev id correctly in stats events then WLAN host driver tries to access interface array without proper bound check which can lead to invalid memory access and as a side effect kernel panic or page fault.

Remediation

Install update from vendor's website.

References

• http://www.securityfocus.com/bid/107770
• https://source.codeaurora.org/quic/la/platform/vendor/qcom-opensource/wlan/qcacld-3.0/commit/?id=409d269c3464a84d9274bc0831031b2216b1060
• https://www.codeaurora.org/security-bulletin/2018/09/04/september-2018-code-aurora-security-bulletin