rhsa-2023_4541
Vulnerability from csaf_redhat
Published
2023-08-08 07:58
Modified
2024-11-15 17:25
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.
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: tcindex: use-after-free vulnerability in traffic control index filter allows privilege escalation (CVE-2023-1281)
* kernel: Use-after-free vulnerability in the Linux Kernel traffic control index filter (CVE-2023-1829)
* kernel: use-after-free vulnerability in the perf_group_detach function of the Linux Kernel Performance Events (CVE-2023-2235)
* kernel: OOB access in the Linux kernel's XFS subsystem (CVE-2023-2124)
* kernel: i2c: out-of-bounds write in xgene_slimpro_i2c_xfer() (CVE-2023-2194)
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):
* Addding the building of i915 driver to 8.8 (BZ#2208276)
* kernel-rt: update RT source tree to the RHEL-8.8.z2 source tree (BZ#2215026)
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.\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: tcindex: use-after-free vulnerability in traffic control index filter allows privilege escalation (CVE-2023-1281)\n\n* kernel: Use-after-free vulnerability in the Linux Kernel traffic control index filter (CVE-2023-1829)\n\n* kernel: use-after-free vulnerability in the perf_group_detach function of the Linux Kernel Performance Events (CVE-2023-2235)\n\n* kernel: OOB access in the Linux kernel\u0027s XFS subsystem (CVE-2023-2124)\n\n* kernel: i2c: out-of-bounds write in xgene_slimpro_i2c_xfer() (CVE-2023-2194)\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* Addding the building of i915 driver to 8.8 (BZ#2208276)\n\n* kernel-rt: update RT source tree to the RHEL-8.8.z2 source tree (BZ#2215026)", "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-2023:4541", "url": "https://access.redhat.com/errata/RHSA-2023:4541" }, { "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": "2181847", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2181847" }, { "category": "external", "summary": "2187439", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2187439" }, { "category": "external", "summary": "2188396", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2188396" }, { "category": "external", "summary": "2188470", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2188470" }, { "category": "external", "summary": "2192589", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2192589" }, { "category": "self", "summary": "Canonical URL", "url": "https://security.access.redhat.com/data/csaf/v2/advisories/2023/rhsa-2023_4541.json" } ], "title": "Red Hat Security Advisory: kernel-rt security and bug fix update", "tracking": { "current_release_date": "2024-11-15T17:25:42+00:00", "generator": { "date": "2024-11-15T17:25:42+00:00", "engine": { "name": "Red Hat SDEngine", "version": "4.2.1" } }, "id": "RHSA-2023:4541", "initial_release_date": "2023-08-08T07:58:32+00:00", 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The imperfect hash area can be updated while packets are traversing. This issue could allow a local attacker to cause a use-after-free problem, leading to privilege escalation.", "title": "Vulnerability description" }, { "category": "summary", "text": "kernel: tcindex: use-after-free vulnerability in traffic control index filter allows privilege escalation", "title": "Vulnerability summary" }, { "category": "other", "text": "For the Red Hat Enterprise Linux 7, please use mitigation to disable module cls_tcindex, because some other bugs exists in the Linux Kernel traffic control index filter too that not going to be fixed before Red Hat Enterprise Linux 8.", "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-8.8.0.Z.MAIN.EUS:kernel-rt-0:4.18.0-477.21.1.rt7.284.el8_8.src", 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"title": "kernel: tcindex: use-after-free vulnerability in traffic control index filter allows privilege escalation" }, { "cve": "CVE-2023-1829", "cwe": { "id": "CWE-119", "name": "Improper Restriction of Operations within the Bounds of a Memory Buffer" }, "discovery_date": "2023-04-20T00:00:00+00:00", "ids": [ { "system_name": "Red Hat Bugzilla ID", "text": "2188470" } ], "notes": [ { "category": "description", "text": "A use-after-free vulnerability was found in the traffic control index filter (tcindex) in the Linux kernel. The tcindex_delete does not properly deactivate filters, which can later lead to double freeing the structure. This flaw allows a local attacker to cause a use-after-free problem, leading to privilege escalation.", "title": "Vulnerability description" }, { "category": "summary", "text": "kernel: Use-after-free vulnerability in the Linux Kernel traffic control index filter", "title": "Vulnerability summary" }, { "category": "other", "text": "For Red Hat Enterprise Linux 7, please use the mitigation to disable module cls_tcindex, because similar use-after-free issues also exists in the Linux Kernel\u0027s traffic control index filter and will not be fixed before Red Hat Enterprise Linux 8.", "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-8.8.0.Z.MAIN.EUS:kernel-rt-0:4.18.0-477.21.1.rt7.284.el8_8.src", 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"title": "kernel: i2c: out-of-bounds write in xgene_slimpro_i2c_xfer()" }, { "cve": "CVE-2023-2235", "cwe": { "id": "CWE-416", "name": "Use After Free" }, "discovery_date": "2023-05-01T00:00:00+00:00", "ids": [ { "system_name": "Red Hat Bugzilla ID", "text": "2192589" } ], "notes": [ { "category": "description", "text": "The Linux kernel\u0027s Performance Events subsystem has a use-after-free flaw that occurs when a user triggers the perf_group_detach and remove_on_exec functions simultaneously. This flaw allows a local user to crash or potentially escalate their privileges on the system.", "title": "Vulnerability description" }, { "category": "summary", "text": "kernel: use-after-free vulnerability in the perf_group_detach function of the Linux Kernel Performance Events", "title": "Vulnerability summary" }, { "category": "other", "text": "The Red Hat Enterprise Linux 8.4 version is not affected by this flaw, as the vulnerable code was introduced in later versions of the Linux Kernel and was not backported to older releases.", "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-8.8.0.Z.MAIN.EUS:kernel-rt-0:4.18.0-477.21.1.rt7.284.el8_8.src", 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Linux Kernel Performance Events" } ] }
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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.