SB2020070183 - Red Hat Enterprise MRG 2 update for kernel-rt
Published: July 1, 2020
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 2 secuirty vulnerabilities.
1) Memory corruption (CVE-ID: CVE-2018-20169)
The vulnerability allows a local attacker to cause DoS condition or execute arbitrary code on the target system.
The vulnerability exists in the USB subsystem due to improper checks on the minimum and maximum size of data allowed when reading an extra descriptor by the USB subsystem of the affected software, related to the __usb_get_extra_descriptor in the drivers/usb/core/usb.c source code file. A local attacker can insert a USB device designed to submit malicious input, trigger memory corruption and cause the service to crash or execute arbitrary code with elevated privileges.
Successful exploitation of the vulnerability may result in system compromise.
2) Information disclosure (CVE-ID: CVE-2020-0543)
The vulnerability allows a local user to gain access to potentially sensitive information.
The vulnerability exists due to incomplete cleanup from specific special register read operations in some Intel(R) Processors. A local user can gain unauthorized access to sensitive information on the system.
Remediation
Install update from vendor's website.