Intel processors Post-barrier RSB predictions vulnerability

1) Security restrictions bypass

EUVDB-ID: #VU66549

Risk: Low

CVSSv3.1:

CVE-ID: CVE-2022-26373

CWE-ID:

Exploit availability:

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

Fixed software versions

CPE2.3

• cpe:2.3:h:intel:intel_xeon_e_processors:*:*:*:*:*:*:*:*

External links

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

Q & A

Can this vulnerability be exploited remotely?

Is there known malware, which exploits this vulnerability?