Register file data sampling in Intel Atom Processors

1) Information disclosure

EUVDB-ID: #VU87457

Risk: Low

CVSSv3.1: 2.9 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2023-28746

CWE-ID: CWE-200 - Information exposure

Exploit availability: No

Description

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

The vulnerability exists due to information exposure through microarchitectural state after transient execution from some register files for some Intel Atom Processors. A local user can gain access to sensitive information.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Intel Atom Processor E3900 Series: All versions

Intel Atom C processor family: All versions

Intel Pentium Processor Silver Series: All versions

Intel Celeron Processor J Series: All versions

Intel Celeron Processor N Series: All versions

Intel Atom Processors: All versions

Intel Atom Processor P5900: All versions

Intel Atom Processor C5000: All versions

Intel Atom Processor P5300: All versions

Intel Atom Processor P5700: All versions

12th Generation Intel Core Processors: All versions

Intel Pentium Gold Processor Series: All versions

Intel Celeron Processors: All versions

13th Generation Intel Core Processors: All versions

14th Generation Intel Core Processors: All versions

Intel Core Processor N series: All versions

Intel Processor N-series: All versions

Intel Atom Processor X Series: All versions

Intel Processor U-series: All versions

External links

http://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00898.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.