SB2020070919 - Red Hat Enterprise Linux 7 update for kernel

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Main Vulnerability Database SB2020070919

SB2020070919 - Red Hat Enterprise Linux 7 update for kernel

Published: July 9, 2020

Security Bulletin ID SB2020070919
CSH Severity
High
Patch available
YES
Number of vulnerabilities 4
Exploitation vector Remote access
Highest impact Code execution

Breakdown by Severity

High 25% Low 75%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 4 vulnerabilities.


1) Permissions, Privileges, and Access Controls (CVE-ID: CVE-2020-12653)

CWE-ID: CWE-264 - Permissions, Privileges, and Access Controls

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:U/U:Clear


The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to application does not properly impose security restrictions in the "mwifiex_cmd_append_vsie_tlv()" function in "drivers/net/wireless/marvell/mwifiex/scan.c" file. A local user can gain elevated privileges on the target system.


2) Out-of-bounds write (CVE-ID: CVE-2020-12654)

CWE-ID: CWE-787 - Out-of-bounds write

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


The vulnerability allows a remote attacker to compromise vulnerable system.

The vulnerability exists due to a boundary error when processing untrusted input in the "mwifiex_ret_wmm_get_status()" function in "drivers/net/wireless/marvell/mwifiex/wmm.c" file. A remote attacker can trigger out-of-bounds write and execute arbitrary code on the target system.


3) Improper Handling of Exceptional Conditions (CVE-ID: CVE-2020-12888)

CWE-ID: -

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


The vulnerability allows a local user to perform a deinal of service (DoS) attack.

The vulnerability exists due to the VFIO PCI driver mishandles attempts to access disabled memory space. A local user can cause a denial of service condition on the target system.


4) Information disclosure (CVE-ID: CVE-2020-0543)

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:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear


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