SB2021062120 - Red Hat Enterprise Linux Server 7.2 update for Intel CPU microcode
Published: June 21, 2021
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 4 vulnerabilities.
1) Incomplete cleanup (CVE-ID: CVE-2020-24489)
CWE-ID: CWE-459 - Incomplete cleanup
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 incomplete cleanup, which leads to security restrictions bypass and privilege escalation.
2) Information disclosure (CVE-ID: CVE-2020-24511)
CWE-ID: CWE-200 - Exposure of sensitive information to an unauthorized actor
CVSSv4: CVSS:4.0/AV:L/AC:L/AT:P/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 improper isolation of shared resources. A local user can gain unauthorized access to sensitive information on the system.
3) Observable discrepancy (CVE-ID: CVE-2020-24512)
CWE-ID: CWE-203 - Observable discrepancy
CVSSv4: CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:L/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 observable timing discrepancy. A local user can gain unauthorized access to sensitive information on the system.
4) Information disclosure (CVE-ID: CVE-2020-24513)
CWE-ID: CWE-200 - Exposure of sensitive information to an unauthorized actor
CVSSv4: CVSS:4.0/AV:L/AC:L/AT:P/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 o gain access to potentially sensitive information.
The vulnerability exists due to domain-bypass transient execution issue. A local user can gain unauthorized access to sensitive information on the system.
Remediation
Install update from vendor's website.