#VU23082 Information disclosure in Linux kernel - CVE-2019-18660
Published: November 28, 2019 / Updated: June 1, 2020
Vulnerability identifier: #VU23082
Vulnerability risk: Low
CVSSv4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2019-18660
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 user to gain access to potentially sensitive information.
The vulnerability exists due to absent protection in Linux kernel on powerpc against the Spectre-RSB, related to arch/powerpc/kernel/entry_64.S and arch/powerpc/kernel/security.c. A local user can gain unauthorized access to sensitive information on the system.
Remediation
Install update from vendor's website.
External links
- https://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.4.204
- https://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.9.204
- https://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.19.87
- https://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.157
- https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.4.1
- https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.3.14
- https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.5