Expected Behavior Violation Affecting perf package, versions <0:4.18.0-80.27.1.el8_0
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Test your applications- Snyk ID SNYK-RHEL8-PERF-4379520
- published 26 Jul 2021
- disclosed 9 Jun 2020
Introduced: 9 Jun 2020
CVE-2020-10767 Open this link in a new tabHow to fix?
Upgrade RHEL:8 perf to version 0:4.18.0-80.27.1.el8_0 or higher.
This issue was patched in RHSA-2020:3041.
NVD Description
Note: Versions mentioned in the description apply only to the upstream perf package and not the perf package as distributed by RHEL.
See How to fix? for RHEL:8 relevant fixed versions and status.
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.