Information disclosure in Linux kernel



| Updated: 2020-06-01
Risk Low
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2018-12127
CWE-ID CWE-200
Exploitation vector Local
Public exploit N/A
Vulnerable software
 Linux kernel
Operating systems & Components / Operating system

Vendor Linux Foundation

Security Bulletin

This security bulletin contains one low risk vulnerability.

1) Information disclosure

EUVDB-ID: #VU28395

Risk: Low

CVSSv4.0: 1.9 [CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2018-12127

CWE-ID: CWE-200 - Exposure of sensitive information to an unauthorized actor

Exploit availability: No

Description

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

Microarchitectural Load Port Data Sampling (MLPDS): Load ports on some microprocessors utilizing speculative execution may allow an authenticated user to potentially enable information disclosure via a side channel with local access. A list of impacted products can be found here: https://www.intel.com/content/dam/www/public/us/en/documents/corporate-information/SA00233-microcode-update-guidance_05132019.pdf

Mitigation

Install update from vendor's website.

Vulnerable software versions

Linux kernel: 4.4 - 5.1.21

CPE2.3 External links

https://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.119
https://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.19.43
https://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.9.176
https://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.4.180
https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.2


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.



###SIDEBAR###