Restricted RSB Alternate (RRSBA) vulnerability in Intel processors

1) Processor optimization removal or modification of security-critical code

EUVDB-ID: #VU65221

Risk: Low

CVSSv3.1: 4.1 [CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2022-28693

CWE-ID: CWE-1037 - Processor optimization removal or modification of security-critical code

Exploit availability: No

Description

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

The vulnerability exists due to unprotected alternative channel of return branch target prediction. A local user can gain access to sensitive information.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Intel Xeon E 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

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

External links

http://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00707.html
http://www.intel.com/content/www/us/en/developer/articles/technical/software-security-guidance/advisory-guidance/return-stack-buffer-underflow.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.