#VU36974 Input validation error in Google Android - CVE-2018-5890

Vulnerability identifier: #VU36974

Vulnerability risk: Low

CVSSv4.0: 5.9 [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]

CVE-ID: CVE-2018-5890

CWE-ID: CWE-20

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
Google Android
Operating systems & Components / Operating system

Vendor: Google

Description

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

If the fdt_totalsize is reported as 0 for the current device tree, it bypasses an error check for a valid device tree in Android releases from CAF using the linux kernel (Android for MSM, Firefox OS for MSM, QRD Android) before security patch level 2018-06-05.

Mitigation
Install update from vendor's website.

Vulnerable software versions

Google Android: All versions

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External links
https://source.android.com/security/bulletin/pixel/2018-06-01#qualcomm-components
https://source.codeaurora.org/quic/la/abl/tianocore/edk2/commit/?id=c9c8de8000ff32f8d1e24e697d861d92d8ed0b7a

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Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

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