Expected Behavior Violation Affecting perf package, versions <0:4.18.0-193.13.2.el8_2
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Test your applications- Snyk ID SNYK-RHEL8-PERF-3776034
- published 26 Jul 2021
- disclosed 9 Jun 2020
Introduced: 9 Jun 2020
CVE-2020-10768 Open this link in a new tabHow to fix?
Upgrade RHEL:8 perf to version 0:4.18.0-193.13.2.el8_2 or higher.
This issue was patched in RHSA-2020:3010.
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 prctl() function, where it can be used to enable indirect branch speculation after it has been disabled. This call incorrectly reports it as being 'force disabled' when it is not and opens the system to Spectre v2 attacks. The highest threat from this vulnerability is to confidentiality.