rhsa-2022_0718
Vulnerability from csaf_redhat
Published
2022-03-01 12:53
Modified
2024-11-06 00:31
Summary
Red Hat Security Advisory: kpatch-patch security update
Notes
Topic
An update is now available for Red Hat Enterprise Linux 7.7 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
This is a kernel live patch module which is automatically loaded by the RPM post-install script to modify the code of a running kernel.
Security Fix(es):
* kernel: use after free in eventpoll.c may lead to escalation of privilege (CVE-2020-0466)
* kernel: xfs: raw block device data leak in XFS_IOC_ALLOCSP IOCTL (CVE-2021-4155)
* kernel: possible privileges escalation due to missing TLB flush (CVE-2022-0330)
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.
{ "document": { "aggregate_severity": { "namespace": "https://access.redhat.com/security/updates/classification/", "text": "Important" }, "category": "csaf_security_advisory", "csaf_version": "2.0", "distribution": { "text": "Copyright \u00a9 Red Hat, Inc. All rights reserved.", "tlp": { "label": "WHITE", "url": "https://www.first.org/tlp/" } }, "lang": "en", "notes": [ { "category": "summary", "text": "An update is now available for Red Hat Enterprise Linux 7.7 Update Services for SAP Solutions.\n\nRed 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.", "title": "Topic" }, { "category": "general", "text": "This is a kernel live patch module which is automatically loaded by the RPM post-install script to modify the code of a running kernel.\n\nSecurity Fix(es):\n\n* kernel: use after free in eventpoll.c may lead to escalation of privilege (CVE-2020-0466)\n\n* kernel: xfs: raw block device data leak in XFS_IOC_ALLOCSP IOCTL (CVE-2021-4155)\n\n* kernel: possible privileges escalation due to missing TLB flush (CVE-2022-0330)\n\nFor 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.", "title": "Details" }, { "category": "legal_disclaimer", "text": "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.", "title": "Terms of Use" } ], "publisher": { "category": "vendor", "contact_details": "https://access.redhat.com/security/team/contact/", "issuing_authority": "Red Hat Product Security is responsible for vulnerability handling across all Red Hat products and services.", "name": "Red Hat Product Security", "namespace": "https://www.redhat.com" }, "references": [ { "category": "self", "summary": "https://access.redhat.com/errata/RHSA-2022:0718", "url": "https://access.redhat.com/errata/RHSA-2022:0718" }, { "category": "external", "summary": "https://access.redhat.com/security/updates/classification/#important", "url": "https://access.redhat.com/security/updates/classification/#important" }, { "category": "external", "summary": "1920480", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1920480" }, { "category": "external", "summary": "2034813", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2034813" }, { "category": "external", "summary": "2042404", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2042404" }, { "category": "self", "summary": "Canonical URL", "url": "https://security.access.redhat.com/data/csaf/v2/advisories/2022/rhsa-2022_0718.json" } ], "title": "Red Hat Security Advisory: kpatch-patch security update", "tracking": { "current_release_date": "2024-11-06T00:31:45+00:00", "generator": { "date": "2024-11-06T00:31:45+00:00", "engine": { "name": "Red Hat SDEngine", "version": "4.1.1" } }, "id": "RHSA-2022:0718", "initial_release_date": "2022-03-01T12:53:21+00:00", "revision_history": [ { "date": "2022-03-01T12:53:21+00:00", "number": "1", "summary": "Initial version" }, { "date": "2022-03-01T12:53:21+00:00", "number": "2", "summary": "Last updated version" }, { "date": "2024-11-06T00:31:45+00:00", "number": "3", "summary": "Last generated version" } ], "status": "final", "version": "3" } }, "product_tree": 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A logic error in eventpoll.c can cause a use-after-free, leading to a local escalation of privilege with no additional execution privileges. User interaction is not needed for exploitation. The highest threat from this vulnerability is to confidentiality, integrity as well as system availability.", "title": "Vulnerability description" }, { "category": "summary", "text": "kernel: use after free in eventpoll.c may lead to escalation of privilege", "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" } ], "product_status": { "fixed": [ "7Server-7.7.E4S:kpatch-patch-3_10_0-1062_46_1-0:1-7.el7.ppc64le", "7Server-7.7.E4S:kpatch-patch-3_10_0-1062_46_1-0:1-7.el7.src", "7Server-7.7.E4S:kpatch-patch-3_10_0-1062_46_1-0:1-7.el7.x86_64", "7Server-7.7.E4S:kpatch-patch-3_10_0-1062_46_1-debuginfo-0:1-7.el7.ppc64le", "7Server-7.7.E4S:kpatch-patch-3_10_0-1062_46_1-debuginfo-0:1-7.el7.x86_64", 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A local attacker could use this flaw to leak data on the XFS filesystem otherwise not accessible to them.", "title": "Vulnerability description" }, { "category": "summary", "text": "kernel: xfs: raw block device data leak in XFS_IOC_ALLOCSP IOCTL", "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" } ], "product_status": { "fixed": [ "7Server-7.7.E4S:kpatch-patch-3_10_0-1062_46_1-0:1-7.el7.ppc64le", "7Server-7.7.E4S:kpatch-patch-3_10_0-1062_46_1-0:1-7.el7.src", "7Server-7.7.E4S:kpatch-patch-3_10_0-1062_46_1-0:1-7.el7.x86_64", "7Server-7.7.E4S:kpatch-patch-3_10_0-1062_46_1-debuginfo-0:1-7.el7.ppc64le", "7Server-7.7.E4S:kpatch-patch-3_10_0-1062_46_1-debuginfo-0:1-7.el7.x86_64", 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file\n\n--- On Red Hat Enterprise Linux 6 ---\nprobe module(\"xfs\").function(\"xfs_alloc_file_space\") {\n\tif ($alloc_type == 0)\n\t\t$alloc_type = 0x40;\t# XFS_BMAPI_PREALLOC\n}\n--- On Red Hat Enterprise Linux 6 ---\n\n--- On Red Hat Enterprise Linux 7 onwards ---\nprobe module(\"xfs\").function(\"xfs_alloc_file_space\") {\n\tif ($alloc_type == 0)\n\t\t$alloc_type = 0x8;\t# XFS_BMAPI_PREALLOC\n}\n--- On Red Hat Enterprise Linux 7 onwards ---\n\n2) Install systemtap package and its dependencies\n\n # yum install -y systemtap systemtap-runtime\n # yum install -y kernel-devel kernel-debuginfo\n\n3) Build the mitigation kernel module as root.\n\n # stap -r `uname -r` -m cve_2021_4155.ko -g CVE-2021-4155.stp -p4\n\n4) Load the mitigation module as root\n\n # staprun -L cve_2021_4155.ko\n\n\n\nWhat is SystemTap and how to use it?\nhttps://access.redhat.com/solutions/5441", "product_ids": [ "7Server-7.7.E4S:kpatch-patch-3_10_0-1062_46_1-0:1-7.el7.ppc64le", 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"7Server-7.7.E4S:kpatch-patch-3_10_0-1062_61_1-debuginfo-0:1-1.el7.x86_64" ] } ], "threats": [ { "category": "impact", "details": "Important" } ], "title": "kernel: xfs: raw block device data leak in XFS_IOC_ALLOCSP IOCTL" }, { "cve": "CVE-2022-0330", "cwe": { "id": "CWE-281", "name": "Improper Preservation of Permissions" }, "discovery_date": "2022-01-19T00:00:00+00:00", "ids": [ { "system_name": "Red Hat Bugzilla ID", "text": "2042404" } ], "notes": [ { "category": "description", "text": "A random memory access flaw was found in the Linux kernel\u2019s GPU i915 kernel driver functionality in the way a user may run malicious code on the GPU. This flaw allows a local user to crash the system or escalate their privileges on the system.", "title": "Vulnerability description" }, { "category": "summary", "text": "kernel: possible privileges escalation due to missing TLB flush", "title": "Vulnerability summary" }, { "category": "other", "text": "For the Red Hat Enterprise Linux default configuration, the issue occurs only if a local user is running malicious code on GPU. The GPU is used and the user is required to have privileges to access the i915 Intel GPU.", "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": { "fixed": [ "7Server-7.7.E4S:kpatch-patch-3_10_0-1062_46_1-0:1-7.el7.ppc64le", "7Server-7.7.E4S:kpatch-patch-3_10_0-1062_46_1-0:1-7.el7.src", "7Server-7.7.E4S:kpatch-patch-3_10_0-1062_46_1-0:1-7.el7.x86_64", "7Server-7.7.E4S:kpatch-patch-3_10_0-1062_46_1-debuginfo-0:1-7.el7.ppc64le", "7Server-7.7.E4S:kpatch-patch-3_10_0-1062_46_1-debuginfo-0:1-7.el7.x86_64", "7Server-7.7.E4S:kpatch-patch-3_10_0-1062_49_1-0:1-5.el7.ppc64le", "7Server-7.7.E4S:kpatch-patch-3_10_0-1062_49_1-0:1-5.el7.src", "7Server-7.7.E4S:kpatch-patch-3_10_0-1062_49_1-0:1-5.el7.x86_64", 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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.