SB2020061020 - Red Hat Enterprise Linux 8 update for kernel-rt

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Main Vulnerability Database SB2020061020

SB2020061020 - Red Hat Enterprise Linux 8 update for kernel-rt

Published: June 10, 2020

Security Bulletin ID SB2020061020
Severity
Low
Patch available
YES
Number of vulnerabilities 2
Exploitation vector Local access
Highest impact Code execution

Breakdown by Severity

Low 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 2 secuirty vulnerabilities.


1) Use-after-free (CVE-ID: CVE-2020-12657)

The vulnerability allows a local user to compromise vulnerable system.

The vulnerability exists due to a use-after-free error in "block/bfq-iosched.c" file related to "bfq_idle_slice_timer_body". A local user can execute arbitrary code on the target system.

Successful exploitation of the vulnerability may allow an attacker to compromise vulnerable system.


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.

References