- Vulnerability/
- RHSA-2021:3176
RHSA-2021:3176: Important: microcode_ctl security, bug fix and enhancement update
First published: Tue Aug 17 2021(Updated: )
The microcode_ctl packages provide microcode updates for Intel.<br>Security Fixes:<br><li> hw: Vector Register Data Sampling (CVE-2020-0548)</li> <li> hw: L1D Cache Eviction Sampling (CVE-2020-0549)</li> <li> hw: Special Register Buffer Data Sampling (SRBDS) (CVE-2020-0543)</li> <li> hw: Information disclosure issue in Intel SGX via RAPL interface (CVE-2020-8695)</li> <li> hw: Vector Register Leakage-Active (CVE-2020-8696)</li> <li> hw: Fast forward store predictor (CVE-2020-8698)</li> <li> hw: vt-d related privilege escalation (CVE-2020-24489)</li> <li> hw: improper isolation of shared resources in some Intel Processors (CVE-2020-24511)</li> <li> hw: observable timing discrepancy in some Intel Processors (CVE-2020-24512)</li> Bug Fix(es):<br><li> [rhel-8.1.0.z] Re-enable 06-5e-03 (SKL-H/S, CPUID 0x506e3) latest microcode updates (BZ#1972327)</li> <li> [rhel-8.1.0.z] Re-enable 06-8c-01 (TGL-UP3/UP4, CPUID 0x806c1) latest microcode updates (BZ#1972331)</li>
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Microcode |
Never miss a vulnerability like this again
Sign up to SecAlerts for real-time vulnerability data matched to your software, aggregated from hundreds of sources.
Reference Links
- https://bugzilla.redhat.com/show_bug.cgi?id=1788786
- https://bugzilla.redhat.com/show_bug.cgi?id=1788788
- https://bugzilla.redhat.com/show_bug.cgi?id=1827165
- https://bugzilla.redhat.com/show_bug.cgi?id=1828583
- https://bugzilla.redhat.com/show_bug.cgi?id=1890355
- https://bugzilla.redhat.com/show_bug.cgi?id=1890356
- https://bugzilla.redhat.com/show_bug.cgi?id=1962650
- https://bugzilla.redhat.com/show_bug.cgi?id=1962702
- https://bugzilla.redhat.com/show_bug.cgi?id=1962722
- https://bugzilla.redhat.com/show_bug.cgi?id=1972327
- https://bugzilla.redhat.com/show_bug.cgi?id=1972331
- https://access.redhat.com/security/updates/classification/#important
- https://access.redhat.com/errata/RHSA-2021:3176 (Advisory)
Frequently Asked Questions
What is the severity of RHSA-2021:3176?
The severity of RHSA-2021:3176 is categorized as a security vulnerability that addresses critical hardware vulnerabilities affecting Intel microcode.
How do I fix RHSA-2021:3176?
To fix RHSA-2021:3176, update the microcode_ctl package to the latest version provided by your Linux distribution.
What vulnerabilities are addressed in RHSA-2021:3176?
RHSA-2021:3176 addresses vulnerabilities including CVE-2020-0548, CVE-2020-0549, and CVE-2020-0543.
What impact does RHSA-2021:3176 have on my system?
RHSA-2021:3176 can potentially allow attackers to exploit hardware vulnerabilities in Intel processors, leading to data leakage.
Who is affected by RHSA-2021:3176?
Systems using affected versions of Intel processors with unpatched microcode are at risk from RHSA-2021:3176.
- agent/severity
- agent/type
- agent/event
- agent/first-publish-date
- agent/last-modified-date
- collector/redhat-errata
- source/Red Hat
- anchor-id/RHSA-2021:3176
- agent/trending
- agent/references
- agent/remedy
- agent/title
- agent/description
- agent/source
- agent/softwarecombine
- agent/tags
- agent/guess-ai
- agent/software-canonical-lookup
- agent/software-canonical-lookup-request
- vendor/intel
- canonical/microcode