rhsa-2024_7003
Vulnerability from csaf_redhat
Published
2024-09-24 00:40
Modified
2024-11-15 18:42
Summary
Red Hat Security Advisory: kernel-rt security update
Notes
Topic
An update for kernel-rt is now available for Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support, Red Hat Enterprise Linux 8.4 Telecommunications Update Service, and Red Hat Enterprise Linux 8.4 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-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high determinism requirements.
Security Fix(es):
* kernel: TIPC message reassembly use-after-free remote code execution vulnerability (CVE-2024-36886)
* kernel: fs: sysfs: Fix reference leak in sysfs_break_active_protection() (CVE-2024-26993)
* kernel: wifi: mac80211: Avoid address calculations via out of bounds array indexing (CVE-2024-41071)
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 for kernel-rt is now available for Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support, Red Hat Enterprise Linux 8.4 Telecommunications Update Service, and Red Hat Enterprise Linux 8.4 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": "The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high determinism requirements.\n\nSecurity Fix(es):\n\n* kernel: TIPC message reassembly use-after-free remote code execution vulnerability (CVE-2024-36886)\n\n* kernel: fs: sysfs: Fix reference leak in sysfs_break_active_protection() (CVE-2024-26993)\n\n* kernel: wifi: mac80211: Avoid address calculations via out of bounds array indexing (CVE-2024-41071)\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-2024:7003", "url": "https://access.redhat.com/errata/RHSA-2024:7003" }, { "category": "external", "summary": "https://access.redhat.com/security/updates/classification/#important", "url": "https://access.redhat.com/security/updates/classification/#important" }, { "category": "external", "summary": "2277238", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2277238" }, { "category": "external", "summary": "2278314", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2278314" }, { "category": "external", "summary": "2300448", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2300448" }, { "category": "self", "summary": "Canonical URL", "url": "https://security.access.redhat.com/data/csaf/v2/advisories/2024/rhsa-2024_7003.json" } ], "title": "Red Hat Security Advisory: kernel-rt security update", "tracking": { "current_release_date": "2024-11-15T18:42:50+00:00", "generator": { "date": "2024-11-15T18:42:50+00:00", "engine": { "name": "Red Hat SDEngine", "version": "4.2.1" } }, "id": "RHSA-2024:7003", "initial_release_date": "2024-09-24T00:40:57+00:00", "revision_history": [ { "date": "2024-09-24T00:40:57+00:00", "number": "1", "summary": "Initial version" }, { "date": "2024-09-24T00:40:57+00:00", "number": "2", "summary": "Last updated version" }, { "date": "2024-11-15T18:42:50+00:00", "number": "3", "summary": "Last generated version" } ], "status": "final", "version": "3" } }, "product_tree": { 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{ "cve": "CVE-2024-26993", "discovery_date": "2024-05-01T00:00:00+00:00", "ids": [ { "system_name": "Red Hat Bugzilla ID", "text": "2278314" } ], "notes": [ { "category": "description", "text": "In the Linux kernel, the following vulnerability has been resolved:\n\nfs: sysfs: Fix reference leak in sysfs_break_active_protection()\n\nThe sysfs_break_active_protection() routine has an obvious reference\nleak in its error path. If the call to kernfs_find_and_get() fails then\nkn will be NULL, so the companion sysfs_unbreak_active_protection()\nroutine won\u0027t get called (and would only cause an access violation by\ntrying to dereference kn-\u003eparent if it was called). As a result, the\nreference to kobj acquired at the start of the function will never be\nreleased.\n\nFix the leak by adding an explicit kobject_put() call when kn is NULL.", "title": "Vulnerability description" }, { "category": "summary", "text": "kernel: fs: sysfs: Fix reference leak in sysfs_break_active_protection()", "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": [ "NFV-8.4.0.Z.TUS:kernel-rt-0:4.18.0-305.141.1.rt7.217.el8_4.src", "NFV-8.4.0.Z.TUS:kernel-rt-0:4.18.0-305.141.1.rt7.217.el8_4.x86_64", "NFV-8.4.0.Z.TUS:kernel-rt-core-0:4.18.0-305.141.1.rt7.217.el8_4.x86_64", "NFV-8.4.0.Z.TUS:kernel-rt-debug-0:4.18.0-305.141.1.rt7.217.el8_4.x86_64", 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The issue results due to a lack of checks in the error handling cleanup and can trigger a UAF on \"struct sk_buff\", which may lead to remote code execution.", "title": "Vulnerability description" }, { "category": "summary", "text": "kernel: TIPC message reassembly use-after-free remote code execution vulnerability", "title": "Vulnerability summary" }, { "category": "other", "text": "While the TIPC module is not loaded by default, this flaw might be used as one in a series of attacks. For that reason, and because of the possibility of remote code execution on systems where this module has been loaded, Red Hat assesses the impact of this flaw as 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": { "fixed": [ "NFV-8.4.0.Z.TUS:kernel-rt-0:4.18.0-305.141.1.rt7.217.el8_4.src", "NFV-8.4.0.Z.TUS:kernel-rt-0:4.18.0-305.141.1.rt7.217.el8_4.x86_64", "NFV-8.4.0.Z.TUS:kernel-rt-core-0:4.18.0-305.141.1.rt7.217.el8_4.x86_64", "NFV-8.4.0.Z.TUS:kernel-rt-debug-0:4.18.0-305.141.1.rt7.217.el8_4.x86_64", "NFV-8.4.0.Z.TUS:kernel-rt-debug-core-0:4.18.0-305.141.1.rt7.217.el8_4.x86_64", "NFV-8.4.0.Z.TUS:kernel-rt-debug-debuginfo-0:4.18.0-305.141.1.rt7.217.el8_4.x86_64", 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When required, administrative privileges are required to explicitly load this module.\nTo determine if the TIPC module is loaded, use the following command:\n# grep tipc /proc/modules\nLook for output similar to the following:\ntipc 479232 0 - Live 0xffffffffc1ba5000\nip6_udp_tunnel 16384 1 tipc, Live 0xffffffffc1b9b000\nudp_tunnel 32768 1 tipc, Live 0xffffffffc1b8b000\n\nLoading the module can be prevented with the following instructions:\n# echo \"install tipc /bin/true\" \u003e\u003e /etc/modprobe.d/disable-tipc.conf\nThe system will need to be restarted if the module is loaded. 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use-after-free remote code execution vulnerability" }, { "cve": "CVE-2024-41071", "cwe": { "id": "CWE-787", "name": "Out-of-bounds Write" }, "discovery_date": "2024-07-29T00:00:00+00:00", "ids": [ { "system_name": "Red Hat Bugzilla ID", "text": "2300448" } ], "notes": [ { "category": "description", "text": "An out-of-bounds buffer overflow has been found in the Linux kernel\u2019s mac80211 subsystem when scanning for SSIDs. Address calculation using out-of-bounds array indexing could result in an attacker crafting an exploit, resulting in the complete compromise of a system.", "title": "Vulnerability description" }, { "category": "summary", "text": "kernel: wifi: mac80211: Avoid address calculations via out of bounds array indexing", "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": [ "NFV-8.4.0.Z.TUS:kernel-rt-0:4.18.0-305.141.1.rt7.217.el8_4.src", "NFV-8.4.0.Z.TUS:kernel-rt-0:4.18.0-305.141.1.rt7.217.el8_4.x86_64", "NFV-8.4.0.Z.TUS:kernel-rt-core-0:4.18.0-305.141.1.rt7.217.el8_4.x86_64", "NFV-8.4.0.Z.TUS:kernel-rt-debug-0:4.18.0-305.141.1.rt7.217.el8_4.x86_64", 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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.