SB2019101005 - Red Hat update for kernel

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Main Vulnerability Database SB2019101005

SB2019101005 - Red Hat update for kernel

Published: October 10, 2019

Security Bulletin ID SB2019101005
CSH Severity
Low
Patch available
YES
Number of vulnerabilities 2
Exploitation vector Physical access
Highest impact Code execution

Breakdown by Severity

Low 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 2 vulnerabilities.


1) Cryptographic issues (CVE-ID: CVE-2019-9506)

CWE-ID: CWE-310 - Cryptographic Issues

CVSSv4: CVSS:4.0/AV:P/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear


The vulnerability allows an attacker to gain access to sensitive information.

The vulnerability exists due to a weakness in Bluetooth Basic Rate/Enhanced Data Rate (BR/EDR) protocol core specification that allows an attacker with close proximity to the affected system to perform a man-in-the-middle attack on an encrypted Bluetooth connection.

Successful exploitation of the vulnerability may allow an attacker to gain access to sensitive information or perform unauthorized actions.


2) Information disclosure (CVE-ID: CVE-2019-1125)

CWE-ID: CWE-200 - Exposure of sensitive information to an unauthorized actor

CVSSv4: 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:P/U:Clear


The vulnerability allows a local user to gain access to potentially sensitive information and elevate privileges on the system.

The vulnerability exists when certain central processing units (CPU) speculatively access memory. A local user can gain unauthorized access to sensitive information and elevate privileges on the system.

This issue is a variant of the Spectre Variant 1 speculative execution side channel vulnerability that leverages SWAPGS instructions to bypass KPTI/KVA mitigations.


Remediation

Install update from vendor's website.

References