rhsa-2021_3028
Vulnerability from csaf_redhat
Published
2021-08-09 10:18
Modified
2024-11-05 23:49
Summary
Red Hat Security Advisory: microcode_ctl security, bug fix and enhancement update
Notes
Topic
An update for microcode_ctl is now available for Red Hat Enterprise Linux 7.
Red Hat Product Security has rated this update as having a security impact
of Important. A Common Vulnerability Scoring System (CVSS) base score,
which gives a detailed severity rating, is available for each vulnerability
from the CVE link(s) in the References section.
Details
The microcode_ctl packages provide microcode updates for Intel.
Security Fix(es):
* hw: Special Register Buffer Data Sampling (SRBDS) (CVE-2020-0543)
* hw: Vector Register Data Sampling (CVE-2020-0548)
* hw: L1D Cache Eviction Sampling (CVE-2020-0549)
* 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 issue in Intel SGX via RAPL interface
(CVE-2020-8695)
* hw: Vector Register Leakage-Active (CVE-2020-8696)
* hw: Fast forward store predictor (CVE-2020-8698)
Terms of Use
This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original.
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"text": "A flaw was found in Intel processors where a local attacker is able to gain information about registers used for vector calculations by observing register states from other processes running on the system. This results in a race condition where store buffers, which were not cleared, could be read by another process or a CPU sibling. The highest threat from this vulnerability is data confidentiality where an attacker could read arbitrary data as it passes through the processor.",
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},
"references": [
{
"category": "self",
"summary": "Canonical URL",
"url": "https://access.redhat.com/security/cve/CVE-2020-24512"
},
{
"category": "external",
"summary": "RHBZ#1962722",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=1962722"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2020-24512",
"url": "https://www.cve.org/CVERecord?id=CVE-2020-24512"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2020-24512",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2020-24512"
}
],
"release_date": "2021-06-08T17:00:00+00:00",
"remediations": [
{
"category": "vendor_fix",
"date": "2021-08-09T10:18:52+00:00",
"details": "Before applying this update, make sure all previously released errata\nrelevant to your system have been applied.\n\nFor details on how to apply this update, refer to:\n\nhttps://access.redhat.com/articles/11258",
"product_ids": [
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"restart_required": {
"category": "none"
},
"url": "https://access.redhat.com/errata/RHSA-2021:3028"
}
],
"scores": [
{
"cvss_v3": {
"attackComplexity": "HIGH",
"attackVector": "LOCAL",
"availabilityImpact": "NONE",
"baseScore": 2.8,
"baseSeverity": "LOW",
"confidentialityImpact": "LOW",
"integrityImpact": "NONE",
"privilegesRequired": "LOW",
"scope": "CHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:L/I:N/A:N",
"version": "3.1"
},
"products": [
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}
],
"threats": [
{
"category": "impact",
"details": "Low"
}
],
"title": "hw: observable timing discrepancy in some Intel Processors"
}
]
}
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- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.