rhsa-2022_7134
Vulnerability from csaf_redhat
Published
2022-10-25 09:22
Modified
2024-11-06 01:50
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: a use-after-free in cls_route filter implementation may lead to privilege escalation (CVE-2022-2588)
* kernel: information leak in scsi_ioctl() (CVE-2022-0494)
* Kernel: A kernel-info-leak issue in pfkey_register (CVE-2022-1353)
* hw: cpu: AMD: RetBleed Arbitrary Speculative Code Execution with Return Instructions (CVE-2022-23816, CVE-2022-29900)
* hw: cpu: AMD: Branch Type Confusion (non-retbleed) (CVE-2022-23825)
* hw: cpu: Intel: RetBleed Arbitrary Speculative Code Execution with Return Instructions (CVE-2022-29901)
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):
* [rhel8-rt] BUG: using __this_cpu_add() in preemptible [00000000] - caller is __mod_memcg_lruvec_state+0x69/0x1c0 (BZ#2122600)
* The latest RHEL 8.6.z4 kernel changes need to be merged into the RT source tree to keep source parity between the two kernels. (BZ#2125396)
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: a use-after-free in cls_route filter implementation may lead to privilege escalation (CVE-2022-2588)\n\n* kernel: information leak in scsi_ioctl() (CVE-2022-0494)\n\n* Kernel: A kernel-info-leak issue in pfkey_register (CVE-2022-1353)\n\n* hw: cpu: AMD: RetBleed Arbitrary Speculative Code Execution with Return Instructions (CVE-2022-23816, CVE-2022-29900)\n\n* hw: cpu: AMD: Branch Type Confusion (non-retbleed) (CVE-2022-23825)\n\n* hw: cpu: Intel: RetBleed Arbitrary Speculative Code Execution with Return Instructions (CVE-2022-29901)\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* [rhel8-rt] BUG: using __this_cpu_add() in preemptible [00000000] - caller is __mod_memcg_lruvec_state+0x69/0x1c0 (BZ#2122600)\n\n* The latest RHEL 8.6.z4 kernel changes need to be merged into the RT source tree to keep source parity between the two kernels. (BZ#2125396)", "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-2022:7134", "url": "https://access.redhat.com/errata/RHSA-2022:7134" }, { "category": "external", "summary": "https://access.redhat.com/security/updates/classification/#important", "url": "https://access.redhat.com/security/updates/classification/#important" }, { "category": "external", "summary": "2039448", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2039448" }, { "category": "external", "summary": "2066819", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2066819" }, { "category": "external", "summary": "2090226", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2090226" }, { "category": "external", "summary": "2103148", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2103148" }, { "category": "external", "summary": "2103153", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2103153" }, { "category": "external", "summary": "2114849", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2114849" }, { "category": "self", "summary": "Canonical URL", "url": "https://security.access.redhat.com/data/csaf/v2/advisories/2022/rhsa-2022_7134.json" } ], "title": "Red Hat Security Advisory: kernel-rt security and bug fix update", "tracking": { "current_release_date": "2024-11-06T01:50:33+00:00", "generator": { "date": "2024-11-06T01:50:33+00:00", "engine": { "name": "Red Hat SDEngine", "version": "4.1.1" } }, "id": "RHSA-2022:7134", "initial_release_date": "2022-10-25T09:22:02+00:00", 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kernel. This flaw allows a local attacker with a special user privilege (CAP_SYS_ADMIN or CAP_SYS_RAWIO) to create issues with confidentiality.", "title": "Vulnerability description" }, { "category": "summary", "text": "kernel: information leak in scsi_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": [ "NFV-8.6.0.Z.MAIN.EUS:kernel-rt-0:4.18.0-372.32.1.rt7.189.el8_6.src", "NFV-8.6.0.Z.MAIN.EUS:kernel-rt-0:4.18.0-372.32.1.rt7.189.el8_6.x86_64", "NFV-8.6.0.Z.MAIN.EUS:kernel-rt-core-0:4.18.0-372.32.1.rt7.189.el8_6.x86_64", "NFV-8.6.0.Z.MAIN.EUS:kernel-rt-debug-0:4.18.0-372.32.1.rt7.189.el8_6.x86_64", "NFV-8.6.0.Z.MAIN.EUS:kernel-rt-debug-core-0:4.18.0-372.32.1.rt7.189.el8_6.x86_64", 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"ids": [ { "system_name": "Red Hat Bugzilla ID", "text": "2066819" } ], "notes": [ { "category": "description", "text": "A vulnerability was found in the pfkey_register function in net/key/af_key.c in the Linux kernel. This flaw allows a local, unprivileged user to gain access to kernel memory, leading to a system crash or a leak of internal kernel information.", "title": "Vulnerability description" }, { "category": "summary", "text": "kernel: kernel info leak issue in pfkey_register", "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-8.6.0.Z.MAIN.EUS:kernel-rt-0:4.18.0-372.32.1.rt7.189.el8_6.src", "NFV-8.6.0.Z.MAIN.EUS:kernel-rt-0:4.18.0-372.32.1.rt7.189.el8_6.x86_64", "NFV-8.6.0.Z.MAIN.EUS:kernel-rt-core-0:4.18.0-372.32.1.rt7.189.el8_6.x86_64", "NFV-8.6.0.Z.MAIN.EUS:kernel-rt-debug-0:4.18.0-372.32.1.rt7.189.el8_6.x86_64", 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{ "system_name": "Red Hat Bugzilla ID", "text": "2114849" } ], "notes": [ { "category": "description", "text": "A use-after-free flaw was found in route4_change in the net/sched/cls_route.c filter implementation in the Linux kernel. This flaw allows a local user to crash the system and possibly lead to a local privilege escalation problem.", "title": "Vulnerability description" }, { "category": "summary", "text": "kernel: a use-after-free in cls_route filter implementation may lead to privilege escalation", "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-8.6.0.Z.MAIN.EUS:kernel-rt-0:4.18.0-372.32.1.rt7.189.el8_6.src", "NFV-8.6.0.Z.MAIN.EUS:kernel-rt-0:4.18.0-372.32.1.rt7.189.el8_6.x86_64", "NFV-8.6.0.Z.MAIN.EUS:kernel-rt-core-0:4.18.0-372.32.1.rt7.189.el8_6.x86_64", "NFV-8.6.0.Z.MAIN.EUS:kernel-rt-debug-0:4.18.0-372.32.1.rt7.189.el8_6.x86_64", 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The unprotected alternative channel of return branch target prediction in some Intel(R) Processors may allow an authorized user to enable information disclosure via local access.", "title": "Vulnerability description" }, { "category": "summary", "text": "hw: cpu: Intel: information disclosure via local access", "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-8.6.0.Z.MAIN.EUS:kernel-rt-0:4.18.0-372.32.1.rt7.189.el8_6.src", "NFV-8.6.0.Z.MAIN.EUS:kernel-rt-0:4.18.0-372.32.1.rt7.189.el8_6.x86_64", "NFV-8.6.0.Z.MAIN.EUS:kernel-rt-core-0:4.18.0-372.32.1.rt7.189.el8_6.x86_64", "NFV-8.6.0.Z.MAIN.EUS:kernel-rt-debug-0:4.18.0-372.32.1.rt7.189.el8_6.x86_64", 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Mis-trained branch predictions for return instructions may allow arbitrary speculative code execution under certain microarchitecture-dependent conditions.", "title": "Vulnerability description" }, { "category": "summary", "text": "hw: cpu: AMD: RetBleed Arbitrary Speculative Code Execution with Return Instructions", "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-8.6.0.Z.MAIN.EUS:kernel-rt-0:4.18.0-372.32.1.rt7.189.el8_6.src", "NFV-8.6.0.Z.MAIN.EUS:kernel-rt-0:4.18.0-372.32.1.rt7.189.el8_6.x86_64", "NFV-8.6.0.Z.MAIN.EUS:kernel-rt-core-0:4.18.0-372.32.1.rt7.189.el8_6.x86_64", "NFV-8.6.0.Z.MAIN.EUS:kernel-rt-debug-0:4.18.0-372.32.1.rt7.189.el8_6.x86_64", 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"discovery_date": "2022-05-25T00:00:00+00:00", "ids": [ { "system_name": "Red Hat Bugzilla ID", "text": "2103148" } ], "notes": [ { "category": "description", "text": "A flaw was found in hw. Non-transparent sharing of branch predictor targets between contexts in some Intel(R) processors may potentially allow an authorized user to enable information disclosure via local access.", "title": "Vulnerability description" }, { "category": "summary", "text": "hw: cpu: Intel: RetBleed Arbitrary Speculative Code Execution with Return Instructions", "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-8.6.0.Z.MAIN.EUS:kernel-rt-0:4.18.0-372.32.1.rt7.189.el8_6.src", "NFV-8.6.0.Z.MAIN.EUS:kernel-rt-0:4.18.0-372.32.1.rt7.189.el8_6.x86_64", "NFV-8.6.0.Z.MAIN.EUS:kernel-rt-core-0:4.18.0-372.32.1.rt7.189.el8_6.x86_64", "NFV-8.6.0.Z.MAIN.EUS:kernel-rt-debug-0:4.18.0-372.32.1.rt7.189.el8_6.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.