#VU28397 Information disclosure in Linux kernel - CVE-2018-12126
Published: May 30, 2019 / Updated: June 1, 2020
Vulnerability identifier: #VU28397
Vulnerability risk: Low
CVSSv4.0: 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-2018-12126
CWE-ID: CWE-200
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerable software:
Linux kernel
Linux kernel
Software vendor:
Linux Foundation
Linux Foundation
Description
The vulnerability allows a local authenticated user to gain access to sensitive information.
Microarchitectural Store Buffer Data Sampling (MSBDS): Store buffers 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
Remediation
Install update from vendor's website.
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