RedHat: RHSA-2021-2303:01 Important: microcode_ctl security,
Summary
The microcode_ctl packages provide microcode updates for Intel.
Security Fix(es):
* hw: vt-d related privilege escalation (CVE-2020-24489)
* hw: improper isolation of shared resources in some Intel Processors(CVE-2020-24511)
* hw: observable timing discrepancy in some Intel Processors(CVE-2020-24512)
* hw: information disclosure on some Intel Atom processors (CVE-2020-24513)
Bug Fix(es) and Enhancement(s):
* Update Intel CPU microcode to microcode-20210525 release
Summary
Solution
Before applying this update, make sure all previously released errata
relevant to your system have been applied.
For details on how to apply this update, refer to:
https://access.redhat.com/articles/11258
References
https://access.redhat.com/security/cve/CVE-2020-24489 https://access.redhat.com/security/cve/CVE-2020-24511 https://access.redhat.com/security/cve/CVE-2020-24512 https://access.redhat.com/security/cve/CVE-2020-24513 https://access.redhat.com/security/updates/classification/#important
Package List
Red Hat Enterprise Linux Server AUS (v. 7.6):
Source:
microcode_ctl-2.1-47.21.el7_6.src.rpm
x86_64:
microcode_ctl-2.1-47.21.el7_6.x86_64.rpm
microcode_ctl-debuginfo-2.1-47.21.el7_6.x86_64.rpm
Red Hat Enterprise Linux Server E4S (v. 7.6):
Source:
microcode_ctl-2.1-47.21.el7_6.src.rpm
x86_64:
microcode_ctl-2.1-47.21.el7_6.x86_64.rpm
microcode_ctl-debuginfo-2.1-47.21.el7_6.x86_64.rpm
Red Hat Enterprise Linux Server TUS (v. 7.6):
Source:
microcode_ctl-2.1-47.21.el7_6.src.rpm
x86_64:
microcode_ctl-2.1-47.21.el7_6.x86_64.rpm
microcode_ctl-debuginfo-2.1-47.21.el7_6.x86_64.rpm
These packages are GPG signed by Red Hat for security. Our key and
details on how to verify the signature are available from
https://access.redhat.com/security/team/key/
Topic
An update for microcode_ctl is now available for Red Hat Enterprise Linux7.Red Hat Product Security has rated this update as having a security impactof Important. A Common Vulnerability Scoring System (CVSS) base score,which gives a detailed severity rating, is available for each vulnerabilityfrom the CVE link(s) in the References section.
Topic
Relevant Releases Architectures
Red Hat Enterprise Linux Server AUS (v. 7.6) - x86_64
Red Hat Enterprise Linux Server E4S (v. 7.6) - x86_64
Red Hat Enterprise Linux Server TUS (v. 7.6) - x86_64
Bugs Fixed
1962650 - CVE-2020-24489 hw: vt-d related privilege escalation
1962666 - CVE-2020-24513 hw: information disclosure on some Intel Atom processors1962702 - CVE-2020-24511 hw: improper isolation of shared resources in some Intel Processors1962722 - CVE-2020-24512 hw: observable timing discrepancy in some Intel Processors
