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CentOS Linux: CVE-2020-10766: Important: kernel security, bug fix, and enhancement update (Multiple Advisories)

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CentOS Linux: CVE-2020-10766: Important: kernel security, bug fix, and enhancement update (Multiple Advisories)

Severity
2
CVSS
(AV:L/AC:L/Au:N/C:P/I:N/A:N)
Published
07/21/2020
Created
07/23/2020
Added
07/23/2020
Modified
05/25/2023

Description

A logic bug flaw was found in Linux kernel before 5.8-rc1 in the implementation of SSBD. A bug in the logic handling allows an attacker with a local account to disable SSBD protection during a context switch when additional speculative execution mitigations are in place. This issue was introduced when the per task/process conditional STIPB switching was added on top of the existing SSBD switching. The highest threat from this vulnerability is to confidentiality.

Solution(s)

  • centos-upgrade-kernel
  • centos-upgrade-kernel-rt
  • centos-upgrade-kpatch-patch-4_18_0-193
  • centos-upgrade-kpatch-patch-4_18_0-193-debuginfo
  • centos-upgrade-kpatch-patch-4_18_0-193-debugsource
  • centos-upgrade-kpatch-patch-4_18_0-193_1_2
  • centos-upgrade-kpatch-patch-4_18_0-193_1_2-debuginfo
  • centos-upgrade-kpatch-patch-4_18_0-193_1_2-debugsource
  • centos-upgrade-kpatch-patch-4_18_0-193_6_3
  • centos-upgrade-kpatch-patch-4_18_0-193_6_3-debuginfo
  • centos-upgrade-kpatch-patch-4_18_0-193_6_3-debugsource

References

  • CVE-2020-10766

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