Vulnerability identifier: #VU96257

Vulnerability risk: Low

CVSSv3.1: 7.7 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2023-42667

CWE-ID: CWE-653

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
Intel Processor Microcode Package for Linux
Hardware solutions / Firmware

Vendor: Intel

Description

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

The vulnerability exists due to improper isolation in the Intel Core Ultra Processor stream cache mechanism. A local user can execute arbitrary code with elevated privileges.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Intel Processor Microcode Package for Linux: 20190312 - 20240531

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External links
http://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-01038.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.