CentOS 7 update for microcode_ctl

Published: 2021-08-09

Risk	Low
Patch available	YES
Number of vulnerabilities	3
CVE-ID	CVE-2020-24511 CVE-2020-24512 CVE-2020-8695
CWE-ID	CWE-200 CWE-203 CWE-204
Exploitation vector	Local
Public exploit	N/A
Vulnerable software Subscribe	CentOS Operating systems & Components / Operating system
Vendor	CentOS Project

Security Bulletin

This security bulletin contains information about 3 vulnerabilities.

1) Information disclosure

EUVDB-ID: #VU54203

Risk: Low

CVSSv3.1: 4.9 [CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2020-24511

CWE-ID: CWE-200 - Information exposure

Exploit availability: No

Description

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.

Mitigation

Update the affected packages.

Vulnerable software versions

CentOS: 7

External links

http://lists.centos.org/pipermail/centos-announce/2021-August/048347.html

Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

2) Observable discrepancy

EUVDB-ID: #VU54204

Risk: Low

CVSSv3.1: 2.5 [CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:L/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2020-24512

CWE-ID: CWE-203 - Observable discrepancy

Exploit availability: No

Description

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.

Mitigation

Update the affected packages.

Vulnerable software versions

CentOS: 7

External links

http://lists.centos.org/pipermail/centos-announce/2021-August/048347.html

Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

3) Observable Response Discrepancy

EUVDB-ID: #VU48372

Risk: Low

CVSSv3.1: 4.6 [CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2020-8695

CWE-ID: CWE-204 - Observable Response Discrepancy

Exploit availability: No

Description

The vulnerability allows a local user to gain access to potentially sensitive information.

The vulnerability exists due to observable discrepancy in the Running Average Power Limit (RAPL) Interface. A local administrator can gain access to sensitive information on the target system.

Affected products:

Product Collection	Vertical Segment	CPUID
8th Generation Intel® Core™ Processor Family	Mobile	806E9
10th Generation Intel® Core™ Processor Family	Mobile	806EC
8th Generation Intel® Core™ Processor Family	Mobile	906EA
9th Generation Intel® Core™ Processor Family	Mobile	906EC
8th Generation Intel® Core™ Processor Family	Desktop	906EA
9th Generation Intel® Core™ Processor Family	Desktop	906EC
Intel® Xeon® Processor E Family	Server Workstation AMT Server	906EA
8th Generation Intel® Core™ Processor Family	Mobile	806EA
8th Generation Intel® Core™ Processor Family Intel® Pentium® Gold Processor Series Intel® Celeron® Processor G Series	Desktop	906EB
Intel® Xeon® Processor E Family	Server Workstation AMT Server	906EA
8th Generation Intel® Core™ Processor Family	Desktop	906EA
9th Generation Intel® Core™ Processor Family	Desktop	906ED
9th Generation Intel® Core™ Processor Family	Desktop	906ED
10th Generation Intel® Core™ Processor Family	Mobile	A0660
10th Generation Intel® Core™ Processor Family	Mobile	A0661
10th Generation Intel® Core™ Processor Family	Mobile	806EC
10th Generation Intel® Core™ Processor Family	Desktop	A0653
10th Generation Intel® Core™ Processor Family	Mobile	A0655
10th Generation Intel® Core™ Processor Family	Mobile	A0652
Intel® Pentium® Processor Silver Series Intel® Celeron® Processor J Series Intel® Celeron® Processor N Series	Desktop Mobile Embedded	706A1
Intel® Pentium® Processor Silver Series Intel® Celeron® Processor J Series Intel® Celeron® Processor N Series	Desktop Mobile Embedded	706A8
10th Generation Intel® Core™ Processor Family	Mobile	706E5
8th Generation Intel® Core™ Processor Family	Mobile	906E9
7th Generation Intel® Core™ Processor Family	Mobile Embedded	906E9
8th Generation Intel® Core™ Processor Family	Mobile	806EA
7th Generation Intel® Core™ Processor Family	Desktop Embedded	906E9
7th Generation Intel® Core™ Processor Family	Mobile	806E9
7th Generation Intel® Core™ Processor Family	Mobile	806E9
Intel® Core™ X-series Processors	Desktop	906E9
Intel® Xeon® Processor E3 v6 Family	Server Workstation AMT Server	906E9
7th Generation Intel® Core™ Processor Family	Mobile	806E9
6th Generation Intel® Core™ Processor Family	Mobile	506E3
6th Generation Intel® Core™ Processor Family	Desktop Embedded	506E3
6th Generation Intel® Core™ Processors	Mobile	406E3
6th Generation Intel® Core™ Processor Family	Mobile	406E3
Intel® Xeon® Processor E3 v5 Family	Server Workstation AMT Server	506E3
6th Generation Intel® Core™ Processor Family	Mobile	406E3
8th Generation Intel® Core™ Processors	Mobile	806EB
8th Generation Intel® Core™ Processors	Mobile	806EC

Mitigation

Update the affected packages.

Vulnerable software versions

CentOS: 7

External links

http://lists.centos.org/pipermail/centos-announce/2021-August/048347.html

Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.