Resource management error in Linux kernel - CVE-2020-10767
Published: September 16, 2020 / Updated: September 26, 2020
Vulnerability identifier: #VU47075
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2020-10767
CWE-ID: CWE-399
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vendor: Linux Foundation
Affected software:
Linux kernel
Linux kernel
Detailed vulnerability description
The vulnerability allows a local user to gain access to sensitive information.
A flaw was found in the Linux kernel before 5.8-rc1 in the
implementation of the Enhanced IBPB (Indirect Branch Prediction
Barrier). The IBPB mitigation will be disabled when STIBP is not
available or when the Enhanced Indirect Branch Restricted Speculation
(IBRS) is available. This flaw allows a local user to perform a Spectre
V2 style attack when this configuration is active.
How to mitigate CVE-2020-10767
Install update from vendor's website.