rhsa-2020:3041
Vulnerability from csaf_redhat
Published
2020-07-21 14:33
Modified
2025-08-02 13:32
Summary
Red Hat Security Advisory: kernel security and bug fix update
Notes
Topic
An update for kernel is now available for Red Hat Enterprise Linux 8.0 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):
* kernel: kernel: DAX hugepages not considered during mremap (CVE-2020-10757)
* kernel: Rogue cross-process SSBD shutdown. Linux scheduler logical bug allows an attacker to turn off the SSBD protection. (CVE-2020-10766)
* kernel: Indirect Branch Prediction Barrier is force-disabled when STIBP is unavailable or enhanced IBRS is available. (CVE-2020-10767)
* kernel: Indirect branch speculation can be enabled after it was force-disabled by the PR_SPEC_FORCE_DISABLE prctl command. (CVE-2020-10768)
* kernel: buffer overflow in mwifiex_cmd_append_vsie_tlv function in drivers/net/wireless/marvell/mwifiex/scan.c (CVE-2020-12653)
* kernel: heap-based buffer overflow in mwifiex_ret_wmm_get_status function in drivers/net/wireless/marvell/mwifiex/wmm.c (CVE-2020-12654)
* Kernel: vfio: access to disabled MMIO space of some devices may lead to DoS scenario (CVE-2020-12888)
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.
Bug Fix(es):
* [ESXi][RHEL8.1.0] scsi driver SG list incompatibility (vmw_pvscsi) (BZ#1839359)
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-2020-10757",
"cwe": {
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"name": "Improper Restriction of Operations within the Bounds of a Memory Buffer"
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"discovery_date": "2020-05-30T00:00:00+00:00",
"ids": [
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"text": "1842525"
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{
"category": "description",
"text": "A flaw was found in the way mremap handled DAX Huge Pages. This flaw allows a local attacker with access to a DAX enabled storage to escalate their privileges on the system.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "kernel: kernel: DAX hugepages not considered during mremap",
"title": "Vulnerability summary"
},
{
"category": "other",
"text": "This issue requires access to a DAX enabled storage.\n\nThis issue affects Red Hat Enterprise Linux 7 kernels starting with kernel-3.10.0-862, that is Red Hat Enterprise Linux 7.5 GA kernel. Red Hat Enterprise Linux 7 kernels prior to that version are not affected as they did not include the functionality that enabled this issue to be exploited.\n\nRed Hat Product Security is aware of this issue. Updates will be released as they become available.",
"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-2020-10757"
},
{
"category": "external",
"summary": "RHBZ#1842525",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=1842525"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2020-10757",
"url": "https://www.cve.org/CVERecord?id=CVE-2020-10757"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2020-10757",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2020-10757"
},
{
"category": "external",
"summary": "https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=5bfea2d9b17f1034a68147a8b03b9789af5700f9",
"url": "https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=5bfea2d9b17f1034a68147a8b03b9789af5700f9"
},
{
"category": "external",
"summary": "https://www.openwall.com/lists/oss-security/2020/06/04/4",
"url": "https://www.openwall.com/lists/oss-security/2020/06/04/4"
}
],
"release_date": "2020-06-04T09:00:00+00:00",
"remediations": [
{
"category": "vendor_fix",
"date": "2020-07-21T14:33:53+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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"scores": [
{
"cvss_v3": {
"attackComplexity": "HIGH",
"attackVector": "LOCAL",
"availabilityImpact": "HIGH",
"baseScore": 7.0,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
},
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"category": "impact",
"details": "Important"
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],
"title": "kernel: kernel: DAX hugepages not considered during mremap"
},
{
"cve": "CVE-2020-10766",
"cwe": {
"id": "CWE-440",
"name": "Expected Behavior Violation"
},
"discovery_date": "2020-06-10T00:00:00+00:00",
"ids": [
{
"system_name": "Red Hat Bugzilla ID",
"text": "1845840"
}
],
"notes": [
{
"category": "description",
"text": "A logic bug flaw was found in the Linux kernel\u2019s 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.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "kernel: Rogue cross-process SSBD shutdown. Linux scheduler logical bug allows an attacker to turn off the SSBD protection.",
"title": "Vulnerability summary"
},
{
"category": "other",
"text": "This flaw is rated as having Important impact because it can be used to disable Spectre v4, which has a rating of Important.",
"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": "self",
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"url": "https://access.redhat.com/security/cve/CVE-2020-10766"
},
{
"category": "external",
"summary": "RHBZ#1845840",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=1845840"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2020-10766",
"url": "https://www.cve.org/CVERecord?id=CVE-2020-10766"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2020-10766",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2020-10766"
},
{
"category": "external",
"summary": "https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=dbbe2ad02e9df26e372f38cc3e70dab9222c832e",
"url": "https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=dbbe2ad02e9df26e372f38cc3e70dab9222c832e"
}
],
"release_date": "2020-06-09T17:00:00+00:00",
"remediations": [
{
"category": "vendor_fix",
"date": "2020-07-21T14:33:53+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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"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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"title": "kernel: Rogue cross-process SSBD shutdown. Linux scheduler logical bug allows an attacker to turn off the SSBD protection."
},
{
"cve": "CVE-2020-10767",
"cwe": {
"id": "CWE-440",
"name": "Expected Behavior Violation"
},
"discovery_date": "2020-06-10T00:00:00+00:00",
"ids": [
{
"system_name": "Red Hat Bugzilla ID",
"text": "1845867"
}
],
"notes": [
{
"category": "description",
"text": "A flaw was found in the Linux kernel\u2019s implementation of the Enhanced IBPB (Indirect Branch Prediction Barrier). The IBPB mitigation will be disabled when STIBP is not available or when the Enhanced Indirect Branch Restricted Speculation (IBRS) is available. This flaw allows a local attacker to perform a Spectre V2 style attack when this configuration is active. The highest threat from this vulnerability is to confidentiality.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "kernel: Indirect Branch Prediction Barrier is force-disabled when STIBP is unavailable or enhanced IBRS is available.",
"title": "Vulnerability summary"
},
{
"category": "other",
"text": "This flaw is rated as having Important impact, because it enables exploitation of the previous Spectre v2 attack, which has a rating of Important.",
"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-2020-10767"
},
{
"category": "external",
"summary": "RHBZ#1845867",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=1845867"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2020-10767",
"url": "https://www.cve.org/CVERecord?id=CVE-2020-10767"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2020-10767",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2020-10767"
},
{
"category": "external",
"summary": "https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=21998a351512eba4ed5969006f0c55882d995ada",
"url": "https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=21998a351512eba4ed5969006f0c55882d995ada"
}
],
"release_date": "2020-06-09T14:00:00+00:00",
"remediations": [
{
"category": "vendor_fix",
"date": "2020-07-21T14:33:53+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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"restart_required": {
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},
"url": "https://access.redhat.com/errata/RHSA-2020:3041"
},
{
"category": "workaround",
"details": "Red Hat has investigated whether a possible mitigation exists for this issue, and has not been able to identify a practical example. Please update as soon as possible.",
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{
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"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": "Important"
}
],
"title": "kernel: Indirect Branch Prediction Barrier is force-disabled when STIBP is unavailable or enhanced IBRS is available."
},
{
"cve": "CVE-2020-10768",
"cwe": {
"id": "CWE-440",
"name": "Expected Behavior Violation"
},
"discovery_date": "2020-06-10T00:00:00+00:00",
"ids": [
{
"system_name": "Red Hat Bugzilla ID",
"text": "1845868"
}
],
"notes": [
{
"category": "description",
"text": "A flaw was found in the prctl() function, where it can be used to enable indirect branch speculation after it has been disabled. This call incorrectly reports it as being \u0027force disabled\u0027 when it is not and opens the system to Spectre v2 attacks. The highest threat from this vulnerability is to confidentiality.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "kernel: Indirect branch speculation can be enabled after it was force-disabled by the PR_SPEC_FORCE_DISABLE prctl command.",
"title": "Vulnerability summary"
},
{
"category": "other",
"text": "This flaw is rated as having Important impact, because it enables exploitation of the previous Spectre v2 attack, which has a rating of Important.",
"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"
}
],
"product_status": {
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},
"references": [
{
"category": "self",
"summary": "Canonical URL",
"url": "https://access.redhat.com/security/cve/CVE-2020-10768"
},
{
"category": "external",
"summary": "RHBZ#1845868",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=1845868"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2020-10768",
"url": "https://www.cve.org/CVERecord?id=CVE-2020-10768"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2020-10768",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2020-10768"
},
{
"category": "external",
"summary": "https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=4d8df8cbb9156b0a0ab3f802b80cb5db57acc0bf",
"url": "https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=4d8df8cbb9156b0a0ab3f802b80cb5db57acc0bf"
}
],
"release_date": "2020-06-09T14:00:00+00:00",
"remediations": [
{
"category": "vendor_fix",
"date": "2020-07-21T14:33:53+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-2020:3041"
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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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{
"category": "impact",
"details": "Important"
}
],
"title": "kernel: Indirect branch speculation can be enabled after it was force-disabled by the PR_SPEC_FORCE_DISABLE prctl command."
},
{
"cve": "CVE-2020-12653",
"cwe": {
"id": "CWE-120",
"name": "Buffer Copy without Checking Size of Input (\u0027Classic Buffer Overflow\u0027)"
},
"discovery_date": "2020-05-05T00:00:00+00:00",
"ids": [
{
"system_name": "Red Hat Bugzilla ID",
"text": "1831868"
}
],
"notes": [
{
"category": "description",
"text": "A flaw was found in the way the mwifiex_cmd_append_vsie_tlv() in Linux kernel\u0027s Marvell WiFi-Ex driver handled vendor specific information elements. A local user could use this flaw to escalate their privileges on the system.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "kernel: buffer overflow in mwifiex_cmd_append_vsie_tlv function in drivers/net/wireless/marvell/mwifiex/scan.c",
"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-2020-12653"
},
{
"category": "external",
"summary": "RHBZ#1831868",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=1831868"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2020-12653",
"url": "https://www.cve.org/CVERecord?id=CVE-2020-12653"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2020-12653",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2020-12653"
}
],
"release_date": "2020-01-27T00:00:00+00:00",
"remediations": [
{
"category": "vendor_fix",
"date": "2020-07-21T14:33:53+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-2020:3041"
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"details": "In order to mitigate this issue it is possible to prevent the affected code from being loaded by blacklisting the kernel module mwifiex. For instructions relating to how to blacklist a kernel module refer to: https://access.redhat.com/solutions/41278",
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{
"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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"category": "impact",
"details": "Important"
}
],
"title": "kernel: buffer overflow in mwifiex_cmd_append_vsie_tlv function in drivers/net/wireless/marvell/mwifiex/scan.c"
},
{
"cve": "CVE-2020-12654",
"cwe": {
"id": "CWE-122",
"name": "Heap-based Buffer Overflow"
},
"discovery_date": "2020-05-05T00:00:00+00:00",
"ids": [
{
"system_name": "Red Hat Bugzilla ID",
"text": "1832530"
}
],
"notes": [
{
"category": "description",
"text": "A flaw was found in the Linux kernel. The Marvell mwifiex driver allows a remote WiFi access point to trigger a heap-based memory buffer overflow due to an incorrect memcpy operation. The highest threat from this vulnerability is to data integrity and system availability.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "kernel: heap-based buffer overflow in mwifiex_ret_wmm_get_status function in drivers/net/wireless/marvell/mwifiex/wmm.c",
"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-2020-12654"
},
{
"category": "external",
"summary": "RHBZ#1832530",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=1832530"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2020-12654",
"url": "https://www.cve.org/CVERecord?id=CVE-2020-12654"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2020-12654",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2020-12654"
}
],
"release_date": "2020-01-27T00:00:00+00:00",
"remediations": [
{
"category": "vendor_fix",
"date": "2020-07-21T14:33:53+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-2020:3041"
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{
"category": "workaround",
"details": "In order to mitigate this issue, it is possible to prevent the affected code from being loaded by blacklisting the kernel module mwifiex. For instructions relating to how to blacklist a kernel module, refer to: https://access.redhat.com/solutions/41278",
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"scores": [
{
"cvss_v3": {
"attackComplexity": "HIGH",
"attackVector": "ADJACENT_NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 7.1,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "REQUIRED",
"vectorString": "CVSS:3.1/AV:A/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H",
"version": "3.1"
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"threats": [
{
"category": "impact",
"details": "Important"
}
],
"title": "kernel: heap-based buffer overflow in mwifiex_ret_wmm_get_status function in drivers/net/wireless/marvell/mwifiex/wmm.c"
},
{
"cve": "CVE-2020-12888",
"cwe": {
"id": "CWE-248",
"name": "Uncaught Exception"
},
"discovery_date": "2020-04-23T00:00:00+00:00",
"ids": [
{
"system_name": "Red Hat Bugzilla ID",
"text": "1836244"
}
],
"notes": [
{
"category": "description",
"text": "A flaw was found in the Linux kernel, where it allows userspace processes, for example, a guest VM, to directly access h/w devices via its VFIO driver modules. The VFIO modules allow users to enable or disable access to the devices\u0027 MMIO memory address spaces. If a user attempts to access the read/write devices\u0027 MMIO address space when it is disabled, some h/w devices issue an interrupt to the CPU to indicate a fatal error condition, crashing the system. This flaw allows a guest user or process to crash the host system resulting in a denial of service.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "Kernel: vfio: access to disabled MMIO space of some devices may lead to DoS scenario",
"title": "Vulnerability summary"
},
{
"category": "other",
"text": "This issue does not affect the versions of the kernel package as shipped with Red Hat Enterprise Linux 5, 6 and Red Hat Enterprise MRG 2.\nThis issue affects the versions of the kernel package as shipped with Red Hat Enterprise Linux 7 and 8. Future kernel updates for Red Hat Enterprise Linux 7 and 8 may address this issue.\n\nA regression of CVE-2020-12888 has been reintroduced in RHEL 9.4\u20139.6 due to the backport of the fork: defer linking file vma patch (related to CVE-2024-27022). This flaw allows a privileged VFIO userspace process to retain stale MMIO mappings after a fork(), leading to host crashes if the child process accesses the device after MMIO has been disabled. While the bug was transient in upstream (v6.9 only), it remains present in multiple RHEL9 releases. Only users with high privileges and access to a VFIO-assigned device can exploit this, and no impact is observed in standard QEMU or DPDK configurations. Regarding this regression, the status of RHEL-9 fixes (fixed for 9.7 and 9.6 for the 21 Jul 2025 and pending for 9.4):\nRHEL-9.7: RHEL-73613 (kernel-5.14.0-578.el9)\nRHEL-9.6.z: RHEL-85623 (kernel-5.14.0-570.26.1.el9_6)\nRHEL-9.5.z: N/A\nRHEL-9.4.z: RHEL-85621 (under development)\nThe 9.7 and 9.6.z fixes backport the upstream solution while the 9.4.z\nfix is pursuing a RHEL specific fix to reduce the scope and risk.\nRHEL-10 is not affected, because branched at 6.12.",
"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"
}
],
"product_status": {
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"references": [
{
"category": "self",
"summary": "Canonical URL",
"url": "https://access.redhat.com/security/cve/CVE-2020-12888"
},
{
"category": "external",
"summary": "RHBZ#1836244",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=1836244"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2020-12888",
"url": "https://www.cve.org/CVERecord?id=CVE-2020-12888"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2020-12888",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2020-12888"
}
],
"release_date": "2020-05-14T00:00:00+00:00",
"remediations": [
{
"category": "vendor_fix",
"date": "2020-07-21T14:33:53+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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"scores": [
{
"cvss_v3": {
"attackComplexity": "HIGH",
"attackVector": "LOCAL",
"availabilityImpact": "HIGH",
"baseScore": 5.3,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "HIGH",
"scope": "CHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:N/I:N/A:H",
"version": "3.1"
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"BaseOS-8.0.0.Z.E4S:perf-debuginfo-0:4.18.0-80.27.1.el8_0.x86_64",
"BaseOS-8.0.0.Z.E4S:python3-perf-0:4.18.0-80.27.1.el8_0.ppc64le",
"BaseOS-8.0.0.Z.E4S:python3-perf-0:4.18.0-80.27.1.el8_0.x86_64",
"BaseOS-8.0.0.Z.E4S:python3-perf-debuginfo-0:4.18.0-80.27.1.el8_0.ppc64le",
"BaseOS-8.0.0.Z.E4S:python3-perf-debuginfo-0:4.18.0-80.27.1.el8_0.x86_64"
]
}
],
"threats": [
{
"category": "impact",
"details": "Important"
}
],
"title": "Kernel: vfio: access to disabled MMIO space of some devices may lead to DoS scenario"
}
]
}
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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.
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