Out-of-bounds read in Intel Atom Processors



Published: 2022-02-10
Risk Low
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2021-33120
CWE-ID CWE-125
Exploitation vector Local
Public exploit N/A
Vulnerable software
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Intel Xeon W-1300 Processor Family
Hardware solutions / Firmware

11th Generation Intel Core Processors
Hardware solutions / Firmware

Intel Xeon E-2300 processor family
Hardware solutions / Firmware

10th Generation Intel Core Processors
Hardware solutions / Firmware

Intel Xeon W Processors
Hardware solutions / Firmware

Intel Pentium Gold Processor Series
Hardware solutions / Firmware

Intel Celeron Processors
Hardware solutions / Firmware

Intel Xeon E Processors
Hardware solutions / Firmware

8th Generation Intel Core Processors
Hardware solutions / Firmware

Intel Celeron Processor G Series
Hardware solutions / Firmware

7th Generation Intel Core Processors
Hardware solutions / Firmware

Intel Pentium Processors
Hardware solutions / Firmware

Intel Core X-series Processors
Hardware solutions / Firmware

Intel Atom Processors
Hardware solutions / Firmware

12th Generation Intel Core Processors
Hardware solutions / Firmware

Intel Celeron Processor 5000 Series
Hardware solutions / Firmware

2th Generation Intel Core Processor Family
Hardware solutions / Firmware

3th Generation Intel Core Processor Family
Hardware solutions / Firmware

4th Generation Intel Core Processor Family
Hardware solutions / Firmware

Intel Xeon Processors
Hardware solutions / Firmware

Intel Core Processors with Intel Hybrid Technology
Hardware solutions / Firmware

Intel Celeron Processor J Series
Hardware solutions / Firmware

Intel Celeron Processor N Series
Hardware solutions / Firmware

Intel Pentium Processor Silver Series
Hardware solutions / Firmware

Intel Puma 7 Family
Hardware solutions / Firmware

3rd Generation Intel Xeon Scalable Processors
Hardware solutions / Firmware

6th Generation Intel Core Processors
Hardware solutions / Firmware

Intel Atom Processor A Series
Hardware solutions / Firmware

Intel Xeon D Processors
Hardware solutions / Firmware

2nd Generation Intel Xeon Scalable Processors
Hardware solutions / Firmware

Intel Core X-series Processor
Hardware solutions / Firmware

Intel Atom Processor X Series
Hardware solutions / Firmware

9th Generation Intel Core Processors
Client/Desktop applications / Web browsers

Intel Atom Processor E3900 Series
Hardware solutions / Other hardware appliances

Intel Pentium Processor J Series
Hardware solutions / Other hardware appliances

Intel Pentium Processor N Series
Hardware solutions / Other hardware appliances

Intel Xeon Scalable Processors
Hardware solutions / Other hardware appliances

Vendor Intel

Security Bulletin

This security bulletin contains one low risk vulnerability.

1) Out-of-bounds read

EUVDB-ID: #VU60492

Risk: Low

CVSSv3.1: 3.2 [CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:L/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-33120

CWE-ID: CWE-125 - Out-of-bounds read

Exploit availability: No

Description

The vulnerability allows a local user to compromise the target system.

The vulnerability exists due to a boundary condition in memory subsystem. A local user can trigger out-of-bounds read error and read contents of memory on the system or perform a denial of service (DoS) attack.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Intel Xeon W-1300 Processor Family: All versions

11th Generation Intel Core Processors: All versions

Intel Xeon E-2300 processor family: All versions

10th Generation Intel Core Processors: All versions

Intel Xeon W Processors: All versions

Intel Pentium Gold Processor Series: All versions

Intel Celeron Processors: All versions

9th Generation Intel Core Processors: All versions

Intel Xeon E Processors: All versions

8th Generation Intel Core Processors: All versions

Intel Celeron Processor G Series: All versions

7th Generation Intel Core Processors: All versions

Intel Pentium Processors: All versions

Intel Core X-series Processors: All versions

Intel Atom Processors: All versions

12th Generation Intel Core Processors: All versions

Intel Celeron Processor 5000 Series: All versions

2th Generation Intel Core Processor Family: All versions

3th Generation Intel Core Processor Family: All versions

4th Generation Intel Core Processor Family: All versions

Intel Xeon Processors: All versions

Intel Core Processors with Intel Hybrid Technology: All versions

Intel Celeron Processor J Series: All versions

Intel Celeron Processor N Series: All versions

Intel Pentium Processor Silver Series: All versions

Intel Puma 7 Family: All versions

3rd Generation Intel Xeon Scalable Processors: All versions

6th Generation Intel Core Processors: All versions

Intel Atom Processor E3900 Series: All versions

Intel Pentium Processor J Series: All versions

Intel Pentium Processor N Series: All versions

Intel Atom Processor A Series: All versions

Intel Xeon D Processors: All versions

2nd Generation Intel Xeon Scalable Processors: All versions

Intel Core X-series Processor: All versions

Intel Xeon Scalable Processors: All versions

Intel Atom Processor X Series: All versions

External links

http://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00589.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.



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