Race condition in Google Android - CVE-2018-11818
Published: September 18, 2018 / Updated: August 8, 2020
Vulnerability identifier: #VU36670
CSH Severity: Low
CVSS v4.0: 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-2018-11818
CWE-ID: CWE-362
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vendor: Google
Affected software:
Google Android
Google Android
Detailed vulnerability description
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, LUT configuration is passed down to driver from userspace via ioctl. Simultaneous update from userspace while kernel drivers are updating LUT registers can lead to race condition.
How to mitigate CVE-2018-11818
Install update from vendor's website.
Sources
- https://source.codeaurora.org/quic/la/kernel/msm-3.18/commit/?id=7d1e40be0f7da526f1109005383aa55f5646fc13
- https://source.codeaurora.org/quic/la/kernel/msm-4.4/commit/?id=999bfde119d881a09218eb045d41fb83e67f0d10
- https://www.codeaurora.org/security-bulletin/2018/09/04/september-2018-code-aurora-security-bulletin