#VU54198 Buffer overflow in Intel products - CVE-2020-8703

Vulnerability identifier: #VU54198

Vulnerability risk: Low

CVSSv4.0: 4.2 [CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:L/VI:H/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2020-8703

CWE-ID: CWE-119

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
Intel 100 Series Chipset
Hardware solutions / Firmware
7th Generation Intel Core Processors
Hardware solutions / Firmware
Intel 200 Series Chipset
Hardware solutions / Firmware
8th Generation Intel Core Processors
Hardware solutions / Firmware
Intel C420 Chipset
Hardware solutions / Firmware
Intel X299 Chipset
Hardware solutions / Firmware
Intel C620 Series Chipset
Hardware solutions / Firmware
Intel 300 Series Chipset
Hardware solutions / Firmware
Intel C240 Series Chipset
Hardware solutions / Firmware
Intel Pentium Gold Processor Series
Hardware solutions / Firmware
Intel Celeron Processor 4000 Series
Hardware solutions / Firmware
10th Generation Intel Core Processors
Hardware solutions / Firmware
Intel 400 Series Chipset
Hardware solutions / Firmware
Intel Xeon W Processor 10000
Hardware solutions / Firmware
Intel Xeon W Processor 1200
Hardware solutions / Firmware
Intel Celeron Processor G Series
Hardware solutions / Firmware
Intel Pentium Processor Silver Series
Hardware solutions / Firmware
Intel Celeron Processor N Series
Hardware solutions / Firmware
Intel Core i5 L16G7
Hardware solutions / Firmware
Intel Core i3 L13G4
Hardware solutions / Firmware
11th Generation Intel Core Processors
Hardware solutions / Firmware
Intel Celeron Processor 6000 Series
Hardware solutions / Firmware
Intel Atom Processor P5000 Series
Hardware solutions / Firmware
3rd Generation Intel Xeon Scalable Processors
Hardware solutions / Firmware
Intel C620A Series Chipset
Hardware solutions / Firmware
Converged Security and Management Engine (CSME)
Hardware solutions / Firmware
Intel Server Platform Services Firmware
Web applications / Other software

Vendor: Intel

Description

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

The vulnerability exists due to a boundary error in a subsystem. A local administrator can trigger memory corruption and gain elevated privileges on the target system.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Intel 100 Series Chipset: before 11.8.86

7th Generation Intel Core Processors: before 11.8.86

Intel 200 Series Chipset: before 11.8.86

8th Generation Intel Core Processors: before 11.8.86

Intel C420 Chipset: before 11.12.86

Intel X299 Chipset: before 11.12.86

Intel C620 Series Chipset: before 11.22.86

Intel 300 Series Chipset: before 12.0.81

Intel C240 Series Chipset: before SPS_E3_05.01.04.300.0

Intel Pentium Gold Processor Series: before 14.5.32

Intel Celeron Processor 4000 Series: before 12.0.81

10th Generation Intel Core Processors: before 13.0.47

Intel 400 Series Chipset: before 14.1.53

Intel Xeon W Processor 10000: before 14.1.53

Intel Xeon W Processor 1200: before 14.1.53

Intel Celeron Processor G Series: before 14.1.53

Intel Pentium Processor Silver Series: before 13.50.11

Intel Celeron Processor N Series: before 13.50.11

Intel Core i5 L16G7: before 13.30.17

Intel Core i3 L13G4: before 13.30.17

11th Generation Intel Core Processors: before 15.0.22

Intel Celeron Processor 6000 Series: before 15.0.22

Intel Atom Processor P5000 Series: before SPS_SoC-A_05.00.03.091.0

3rd Generation Intel Xeon Scalable Processors: before SPS_E5_04.04.03.263.0

Intel C620A Series Chipset: before SPS_E5_04.04.03.263.0

Intel Server Platform Services Firmware: before SPS_SoC-A_05.00.03.091.0

Converged Security and Management Engine (CSME): before 11.8.86

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External links
https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00459.html
https://security.netapp.com/advisory/ntap-20210611-0004/

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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.