vulnerability
Red Hat OpenShift: CVE-2020-10767: kernel: Indirect Branch Prediction Barrier is force-disabled when STIBP is unavailable or enhanced IBRS is available.
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 2 | (AV:L/AC:M/Au:N/C:P/I:N/A:N) | 2020-09-15 | 2020-12-29 | 2025-04-11 |
Severity
2
CVSS
(AV:L/AC:M/Au:N/C:P/I:N/A:N)
Published
2020-09-15
Added
2020-12-29
Modified
2025-04-11
Description
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 attacker to perform a Spectre V2 style attack when this configuration is active. The highest threat from this vulnerability is to confidentiality.
Solution
linuxrpm-upgrade-redhat-coreos
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