PT-2020-9976 · Synaptics · Synaptics Wbf Drivers

Published 2020-07-22 · Updated 2020-07-30 · CVE-2019-18619

Positive Technologies (AI Summary)

CVSS v3.1

7.8

High

Base vector

AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions: Synaptics WBF drivers versions prior to 2019-11-15

Description: The issue is related to incorrect parameter validation in the synaTee component of Synaptics WBF drivers that utilize an SGX enclave. This allows a local user to execute arbitrary code within the enclave, potentially compromising the confidentiality of enclave data. The exploitation occurs via APIs that accept invalid pointers.

Recommendations: For versions prior to 2019-11-15, update to a version released after 2019-11-15 to resolve the issue. As a temporary workaround, consider restricting access to APIs that accept invalid pointers to minimize the risk of exploitation.

Fix

Weakness Enumeration

CWE-763

Related Identifiers

CVE-2019-18619

Affected Products

Synaptics Wbf Drivers

References · 8

• https://support.hp.com/hk-en/document/c06696568 · Patch
• https://osv.dev/vulnerability/CVE-2019-18619 · Vendor Advisory
• https://syssec.wiwi.uni-due.de/en/research/research-projects/analysis-of-tee-software · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2019-18619 · Security Note
• https://synaptics.com/company/blog · Vendor Advisory
• https://synaptics.com/sites/default/files/fingerprint-driver-SGX-security-brief-2020-07-14.pdf · Vendor Advisory
• https://support.lenovo.com/us/en/product_security/LEN-31372 · Patch
• https://t.me/cibsecurity/13586 · Telegram Post