Vulnerability identifier: #VU66549

Vulnerability risk: Low

CVSSv3.1: 4.8 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2022-26373

CWE-ID: CWE-264

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
Intel Xeon E Processors
Hardware solutions / Firmware
Intel Xeon D Processors
Hardware solutions / Firmware
Intel Xeon W Processors
Hardware solutions / Firmware
Intel Core X-series Processors
Hardware solutions / Firmware
2nd Generation Intel Xeon Scalable Processors
Hardware solutions / Firmware
3rd Generation Intel Xeon Scalable Processors
Hardware solutions / Firmware
10th Generation Intel Core Processors
Hardware solutions / Firmware
Intel Core Processors with Intel Hybrid Technology
Hardware solutions / Firmware
11th Generation Intel Core Processors
Hardware solutions / Firmware
Intel Xeon Processors
Hardware solutions / Firmware
8th Generation Intel Core Processors
Hardware solutions / Firmware
Intel Pentium Gold Processor Series
Hardware solutions / Firmware
Intel Celeron Processor 5000 Series
Hardware solutions / Firmware
12th Generation Intel Core Processors
Hardware solutions / Firmware
Intel Celeron Processors
Hardware solutions / Firmware
9th Generation Intel Core Processors
Client/Desktop applications / Web browsers

Vendor: Intel

Description

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

The vulnerability exists due to non-transparent sharing of return predictor targets between contexts in Intel CPU processors. A local user can bypass the expected architecture isolation between contexts and gain access to sensitive information on the system.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Intel Xeon E Processors: All versions

Intel Xeon D Processors: All versions

Intel Xeon W Processors: All versions

Intel Core X-series Processors: All versions

2nd Generation Intel Xeon Scalable Processors: All versions

3rd Generation Intel Xeon Scalable Processors: All versions

10th Generation Intel Core Processors: All versions

Intel Core Processors with Intel Hybrid Technology: All versions

11th Generation Intel Core Processors: All versions

Intel Xeon Processors: All versions

8th Generation Intel Core Processors: All versions

Intel Pentium Gold Processor Series: All versions

Intel Celeron Processor 5000 Series: All versions

12th Generation Intel Core Processors: All versions

Intel Celeron Processors: All versions

9th Generation Intel Core Processors: All versions

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External links
http://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00706.html

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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.