Information disclosure in Linux kernel

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

EUVDB-ID: #VU77247

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-2023-3006

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

Exploit availability: No

Description

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

The vulnerability exists due to a known cache speculation vulnerability (Spectre-BHB) for the new hw AmpereOne. A local user can gain access to sensitive information.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Linux kernel: All versions

External links

http://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git/commit/?id=0e5d5ae837c8

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.