rhsa-2023_5588
Vulnerability from csaf_redhat
Published
2023-10-10 14:10
Modified
2024-11-06 03:48
Summary
Red Hat Security Advisory: kernel-rt security and bug fix update
Notes
Topic
An update for kernel-rt is now available for Red Hat Enterprise Linux 8.2 Telecommunications Update Service.
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: use-after-free in l2cap_connect and l2cap_le_connect_req in net/bluetooth/l2cap_core.c (CVE-2022-42896)
* kernel: net/sched: Use-after-free vulnerabilities in the net/sched classifiers: cls_fw, cls_u32 and cls_route (CVE-2023-4128)
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):
* kernel-rt: update RT source tree to the RHEL-8.2.z29 source tree (BZ#2232651)
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 8.2 Telecommunications Update Service.\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: use-after-free in l2cap_connect and l2cap_le_connect_req in net/bluetooth/l2cap_core.c (CVE-2022-42896)\n\n* kernel: net/sched: Use-after-free vulnerabilities in the net/sched classifiers: cls_fw, cls_u32 and cls_route (CVE-2023-4128)\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.\n\nBug Fix(es):\n\n* kernel-rt: update RT source tree to the RHEL-8.2.z29 source tree (BZ#2232651)", "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-2023:5588", "url": "https://access.redhat.com/errata/RHSA-2023:5588" }, { "category": "external", "summary": "https://access.redhat.com/security/updates/classification/#important", "url": "https://access.redhat.com/security/updates/classification/#important" }, { "category": "external", "summary": "2147364", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2147364" }, { "category": "external", "summary": "2225511", 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l2cap_connect and l2cap_le_connect_req functions. An attacker with physical access within the range of standard Bluetooth transmission could execute code leaking kernel memory via Bluetooth if within proximity of the victim.", "title": "Vulnerability description" }, { "category": "summary", "text": "kernel: use-after-free in l2cap_connect and l2cap_le_connect_req in net/bluetooth/l2cap_core.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" } ], "product_status": { "fixed": [ "NFV-8.2.0.Z.TUS:kernel-rt-0:4.18.0-193.116.1.rt13.167.el8_2.src", "NFV-8.2.0.Z.TUS:kernel-rt-0:4.18.0-193.116.1.rt13.167.el8_2.x86_64", "NFV-8.2.0.Z.TUS:kernel-rt-core-0:4.18.0-193.116.1.rt13.167.el8_2.x86_64", "NFV-8.2.0.Z.TUS:kernel-rt-debug-0:4.18.0-193.116.1.rt13.167.el8_2.x86_64", 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Do not use this CVE record: CVE-2023-4128.", "title": "Vulnerability description" }, { "category": "summary", "text": "kernel: net/sched: Use-after-free vulnerabilities in the net/sched classifiers: cls_fw, cls_u32 and cls_route", "title": "Vulnerability summary" }, { "category": "other", "text": "All CVE users should reference CVE-2023-4206, CVE-2023-4207, CVE-2023-4208 instead of this record. All references and descriptions in this record have been removed to prevent accidental usage.", "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-8.2.0.Z.TUS:kernel-rt-0:4.18.0-193.116.1.rt13.167.el8_2.src", "NFV-8.2.0.Z.TUS:kernel-rt-0:4.18.0-193.116.1.rt13.167.el8_2.x86_64", "NFV-8.2.0.Z.TUS:kernel-rt-core-0:4.18.0-193.116.1.rt13.167.el8_2.x86_64", "NFV-8.2.0.Z.TUS:kernel-rt-debug-0:4.18.0-193.116.1.rt13.167.el8_2.x86_64", "NFV-8.2.0.Z.TUS:kernel-rt-debug-core-0:4.18.0-193.116.1.rt13.167.el8_2.x86_64", "NFV-8.2.0.Z.TUS:kernel-rt-debug-debuginfo-0:4.18.0-193.116.1.rt13.167.el8_2.x86_64", "NFV-8.2.0.Z.TUS:kernel-rt-debug-devel-0:4.18.0-193.116.1.rt13.167.el8_2.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.