rhsa-2022_6872
Vulnerability from csaf_redhat
Published
2022-10-11 12:35
Modified
2024-11-15 14:57
Summary
Red Hat Security Advisory: kernel security update
Notes
Topic
An update for kernel is now available for Red Hat Enterprise Linux 8.1 Update Services for SAP Solutions.
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 kernel packages contain the Linux kernel, the core of any Linux operating system.
Security Fix(es):
* a use-after-free in cls_route filter implementation may lead to privilege escalation (CVE-2022-2588)
* Incomplete cleanup of multi-core shared buffers (aka SBDR) (CVE-2022-21123)
* Incomplete cleanup of microarchitectural fill buffers (aka SBDS) (CVE-2022-21125)
* Incomplete cleanup in specific special register write operations (aka DRPW) (CVE-2022-21166)
For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.
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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"acknowledgments": [
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"names": [
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"cve": "CVE-2022-2588",
"cwe": {
"id": "CWE-416",
"name": "Use After Free"
},
"discovery_date": "2022-08-03T00:00:00+00:00",
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"ids": [
{
"system_name": "Red Hat Bugzilla ID",
"text": "2114849"
}
],
"notes": [
{
"category": "description",
"text": "A use-after-free flaw was found in route4_change in the net/sched/cls_route.c filter implementation in the Linux kernel. This flaw allows a local user to crash the system and possibly lead to a local privilege escalation problem.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "kernel: a use-after-free in cls_route filter implementation may lead to privilege escalation",
"title": "Vulnerability summary"
},
{
"category": "general",
"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
"title": "CVSS score applicability"
}
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"references": [
{
"category": "self",
"summary": "Canonical URL",
"url": "https://access.redhat.com/security/cve/CVE-2022-2588"
},
{
"category": "external",
"summary": "RHBZ#2114849",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2114849"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2022-2588",
"url": "https://www.cve.org/CVERecord?id=CVE-2022-2588"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2022-2588",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-2588"
},
{
"category": "external",
"summary": "https://lore.kernel.org/netdev/20220809170518.164662-1-cascardo@canonical.com/T/#u",
"url": "https://lore.kernel.org/netdev/20220809170518.164662-1-cascardo@canonical.com/T/#u"
}
],
"release_date": "2022-08-09T17:00:00+00:00",
"remediations": [
{
"category": "vendor_fix",
"date": "2022-10-11T12:35:26+00:00",
"details": "For details on how to apply this update, which includes the changes described in this advisory, refer to:\n\nhttps://access.redhat.com/articles/11258\n\nThe system must be rebooted for this update to take effect.",
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{
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"scores": [
{
"cvss_v3": {
"attackComplexity": "LOW",
"attackVector": "LOCAL",
"availabilityImpact": "HIGH",
"baseScore": 7.8,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
},
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"title": "kernel: a use-after-free in cls_route filter implementation may lead to privilege escalation"
},
{
"acknowledgments": [
{
"names": [
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]
}
],
"cve": "CVE-2022-21123",
"cwe": {
"id": "CWE-459",
"name": "Incomplete Cleanup"
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"text": "2090237"
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"notes": [
{
"category": "description",
"text": "A flaw was found in hw. Incomplete cleanup of multi-core shared buffers for some Intel\u00ae Processors may allow an authenticated user to enable information disclosure via local access.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "hw: cpu: incomplete clean-up of multi-core shared buffers (aka SBDR)",
"title": "Vulnerability summary"
},
{
"category": "other",
"text": "Red Hat has very limited to no visibility and control over binary blobs provided by third-party vendors. Red Hat relies heavily on the vendors to provide timely updates and information about included changes for this content and in most cases merely acts as a release vehicle between the third-party vendor and Red Hat customers with no possibility of influencing or even documenting the changes. Unless explicitly stated, the level of insight, oversight, and control Red Hat has does not meet the criteria required (in terms of Red Hat ownership of development processes, QA, and documentation) for releasing this content as RHSA. For more information please contact the binary content vendor.",
"title": "Statement"
},
{
"category": "general",
"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
"title": "CVSS score applicability"
}
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{
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{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2022-21123",
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},
{
"category": "external",
"summary": "https://www.intel.com/content/www/us/en/developer/articles/technical/software-security-guidance/technical-documentation/processor-mmio-stale-data-vulnerabilities.html",
"url": "https://www.intel.com/content/www/us/en/developer/articles/technical/software-security-guidance/technical-documentation/processor-mmio-stale-data-vulnerabilities.html"
}
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"release_date": "2022-06-14T00:00:00+00:00",
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{
"category": "vendor_fix",
"date": "2022-10-11T12:35:26+00:00",
"details": "For details on how to apply this update, which includes the changes described in this advisory, refer to:\n\nhttps://access.redhat.com/articles/11258\n\nThe system must be rebooted for this update to take effect.",
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"baseScore": 6.1,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "HIGH",
"integrityImpact": "LOW",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N",
"version": "3.1"
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"title": "hw: cpu: incomplete clean-up of multi-core shared buffers (aka SBDR)"
},
{
"acknowledgments": [
{
"names": [
"Intel"
]
}
],
"cve": "CVE-2022-21125",
"cwe": {
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"name": "Incomplete Cleanup"
},
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"ids": [
{
"system_name": "Red Hat Bugzilla ID",
"text": "2090240"
}
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"notes": [
{
"category": "description",
"text": "A flaw was found in hw. Incomplete cleanup of microarchitectural fill buffers on some Intel\u00ae Processors may allow an authenticated user to enable information disclosure via local access.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "hw: cpu: incomplete clean-up of microarchitectural fill buffers (aka SBDS)",
"title": "Vulnerability summary"
},
{
"category": "other",
"text": "Red Hat has very limited to no visibility and control over binary blobs provided by third-party vendors. Red Hat relies heavily on the vendors to provide timely updates and information about included changes for this content and in most cases merely acts as a release vehicle between the third-party vendor and Red Hat customers with no possibility of influencing or even documenting the changes. Unless explicitly stated, the level of insight, oversight, and control Red Hat has does not meet the criteria required (in terms of Red Hat ownership of development processes, QA, and documentation) for releasing this content as RHSA. For more information please contact the binary content vendor.",
"title": "Statement"
},
{
"category": "general",
"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
"title": "CVSS score applicability"
}
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},
{
"category": "external",
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{
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"url": "https://www.cve.org/CVERecord?id=CVE-2022-21125"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2022-21125",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-21125"
},
{
"category": "external",
"summary": "https://www.intel.com/content/www/us/en/developer/articles/technical/software-security-guidance/technical-documentation/processor-mmio-stale-data-vulnerabilities.html",
"url": "https://www.intel.com/content/www/us/en/developer/articles/technical/software-security-guidance/technical-documentation/processor-mmio-stale-data-vulnerabilities.html"
}
],
"release_date": "2022-06-14T00:00:00+00:00",
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{
"category": "vendor_fix",
"date": "2022-10-11T12:35:26+00:00",
"details": "For details on how to apply this update, which includes the changes described in this advisory, refer to:\n\nhttps://access.redhat.com/articles/11258\n\nThe system must be rebooted for this update to take effect.",
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"url": "https://access.redhat.com/errata/RHSA-2022:6872"
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{
"category": "workaround",
"details": "Mitigation for this issue is either not available or the currently available options don\u0027t meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation baser or stability.",
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"confidentialityImpact": "HIGH",
"integrityImpact": "NONE",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
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"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N",
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"threats": [
{
"category": "impact",
"details": "Moderate"
}
],
"title": "hw: cpu: incomplete clean-up of microarchitectural fill buffers (aka SBDS)"
},
{
"acknowledgments": [
{
"names": [
"Intel"
]
}
],
"cve": "CVE-2022-21166",
"cwe": {
"id": "CWE-459",
"name": "Incomplete Cleanup"
},
"discovery_date": "2022-05-25T00:00:00+00:00",
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{
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"ids": [
{
"system_name": "Red Hat Bugzilla ID",
"text": "2090241"
}
],
"notes": [
{
"category": "description",
"text": "A flaw was found in hw. Incomplete cleanup in specific special register write operations for some Intel\u00ae Processors may allow an authenticated user to enable information disclosure via local access.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "hw: cpu: incomplete clean-up in specific special register write operations (aka DRPW)",
"title": "Vulnerability summary"
},
{
"category": "other",
"text": "Red Hat has very limited to no visibility and control over binary blobs provided by third-party vendors. Red Hat relies heavily on the vendors to provide timely updates and information about included changes for this content and in most cases merely acts as a release vehicle between the third-party vendor and Red Hat customers with no possibility of influencing or even documenting the changes. Unless explicitly stated, the level of insight, oversight, and control Red Hat has does not meet the criteria required (in terms of Red Hat ownership of development processes, QA, and documentation) for releasing this content as RHSA. For more information please contact the binary content vendor.",
"title": "Statement"
},
{
"category": "general",
"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
"title": "CVSS score applicability"
}
],
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"references": [
{
"category": "self",
"summary": "Canonical URL",
"url": "https://access.redhat.com/security/cve/CVE-2022-21166"
},
{
"category": "external",
"summary": "RHBZ#2090241",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2090241"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2022-21166",
"url": "https://www.cve.org/CVERecord?id=CVE-2022-21166"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2022-21166",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-21166"
},
{
"category": "external",
"summary": "https://www.intel.com/content/www/us/en/developer/articles/technical/software-security-guidance/technical-documentation/processor-mmio-stale-data-vulnerabilities.html",
"url": "https://www.intel.com/content/www/us/en/developer/articles/technical/software-security-guidance/technical-documentation/processor-mmio-stale-data-vulnerabilities.html"
}
],
"release_date": "2022-06-14T00:00:00+00:00",
"remediations": [
{
"category": "vendor_fix",
"date": "2022-10-11T12:35:26+00:00",
"details": "For details on how to apply this update, which includes the changes described in this advisory, refer to:\n\nhttps://access.redhat.com/articles/11258\n\nThe system must be rebooted for this update to take effect.",
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"url": "https://access.redhat.com/errata/RHSA-2022:6872"
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{
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"scores": [
{
"cvss_v3": {
"attackComplexity": "LOW",
"attackVector": "LOCAL",
"availabilityImpact": "NONE",
"baseScore": 5.5,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "HIGH",
"integrityImpact": "NONE",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N",
"version": "3.1"
},
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]
}
],
"threats": [
{
"category": "impact",
"details": "Moderate"
}
],
"title": "hw: cpu: incomplete clean-up in specific special register write operations (aka DRPW)"
}
]
}
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- 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.