rhsa-2024_1382
Vulnerability from csaf_redhat
Published
2024-03-19 15:10
Modified
2024-11-06 05:15
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 8.4 Advanced Mission 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):
* vmwgfx: NULL pointer dereference in vmw_cmd_dx_define_query (CVE-2022-38096)
* null-ptr-deref vulnerabilities in sl_tx_timeout in drivers/net/slip (CVE-2022-41858)
* nfp: use-after-free in area_cache_get() (CVE-2022-3545)
* NULL pointer dereference in can_rcv_filter (CVE-2023-2166)
* Slab-out-of-bound read in compare_netdev_and_ip (CVE-2023-2176)
* out-of-bounds write in qfq_change_class function (CVE-2023-31436)
* NULL pointer dereference in vmxnet3_rq_cleanup() (CVE-2023-4459)
* net/sched: sch_qfq component can be exploited if in qfq_change_agg function happens qfq_enqueue overhead (CVE-2023-3611)
* ktls overwrites readonly memory pages when using function splice with a ktls socket as destination (CVE-2024-0646)
* inactive elements in nft_pipapo_walk (CVE-2023-6817)
* refcount leak in ctnetlink_create_conntrack() (CVE-2023-7192)
Bug Fix(es):
* out-of-bounds write in qfq_change_class function (JIRA:RHEL-12700)
* vmxnet3: NULL pointer dereference in vmxnet3_rq_cleanup() (JIRA:RHEL-18192)
* refcount leak in ctnetlink_create_conntrack() (JIRA:RHEL-20302)
* inactive elements in nft_pipapo_walk (JIRA:RHEL-20703)
* ktls overwrites readonly memory pages when using function splice with a ktls socket as destination (JIRA:RHEL-22099)
* update RT source tree to the latest RHEL-8.4.z Batch 23 (JIRA:RHEL-23825)
* null-ptr-deref vulnerabilities in sl_tx_timeout in drivers/net/slip (JIRA:RHEL-19023)
* Slab-out-of-bound read in compare_netdev_and_ip (JIRA:RHEL-19404)
* A flaw leading to a use-after-free in area_cache_get() (JIRA:RHEL-19530)
* vmxgfx: NULL pointer dereference in vmw_cmd_dx_define_query (JIRA:RHEL-22755)
* NULL pointer dereference in can_rcv_filter (JIRA:RHEL-19520)
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.
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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* vmwgfx: NULL pointer dereference in vmw_cmd_dx_define_query (CVE-2022-38096)\n\n* null-ptr-deref vulnerabilities in sl_tx_timeout in drivers/net/slip (CVE-2022-41858)\n\n* nfp: use-after-free in area_cache_get() (CVE-2022-3545)\n\n* NULL pointer dereference in can_rcv_filter (CVE-2023-2166)\n\n* Slab-out-of-bound read in compare_netdev_and_ip (CVE-2023-2176)\n\n* out-of-bounds write in qfq_change_class function (CVE-2023-31436)\n\n* NULL pointer dereference in vmxnet3_rq_cleanup() (CVE-2023-4459)\n\n* net/sched: sch_qfq component can be exploited if in qfq_change_agg function happens qfq_enqueue overhead (CVE-2023-3611)\n\n* ktls overwrites readonly memory pages when using function splice with a ktls socket as destination (CVE-2024-0646)\n\n* inactive elements in nft_pipapo_walk (CVE-2023-6817)\n\n* refcount leak in ctnetlink_create_conntrack() (CVE-2023-7192)\n\nBug Fix(es):\n\n* out-of-bounds write in qfq_change_class function (JIRA:RHEL-12700)\n\n* vmxnet3: NULL pointer dereference in vmxnet3_rq_cleanup() (JIRA:RHEL-18192)\n\n* refcount leak in ctnetlink_create_conntrack() (JIRA:RHEL-20302)\n\n* inactive elements in nft_pipapo_walk (JIRA:RHEL-20703)\n\n* ktls overwrites readonly memory pages when using function splice with a ktls socket as destination (JIRA:RHEL-22099)\n\n* update RT source tree to the latest RHEL-8.4.z Batch 23 (JIRA:RHEL-23825)\n\n* null-ptr-deref vulnerabilities in sl_tx_timeout in drivers/net/slip (JIRA:RHEL-19023)\n\n* Slab-out-of-bound read in compare_netdev_and_ip (JIRA:RHEL-19404)\n\n* A flaw leading to a use-after-free in area_cache_get() (JIRA:RHEL-19530)\n\n* vmxgfx: NULL pointer dereference in vmw_cmd_dx_define_query (JIRA:RHEL-22755)\n\n* NULL pointer dereference in can_rcv_filter (JIRA:RHEL-19520)", "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-2024:1382", "url": "https://access.redhat.com/errata/RHSA-2024:1382" }, { "category": "external", "summary": "https://access.redhat.com/security/updates/classification/#important", "url": "https://access.redhat.com/security/updates/classification/#important" }, { "category": "external", "summary": "2133452", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2133452" }, { "category": "external", "summary": "2144379", 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"2256279", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2256279" }, { "category": "self", "summary": "Canonical URL", "url": "https://security.access.redhat.com/data/csaf/v2/advisories/2024/rhsa-2024_1382.json" } ], "title": "Red Hat Security Advisory: kernel-rt security and bug fix update", "tracking": { "current_release_date": "2024-11-06T05:15:10+00:00", "generator": { "date": "2024-11-06T05:15:10+00:00", "engine": { "name": "Red Hat SDEngine", "version": "4.1.1" } }, "id": "RHSA-2024:1382", "initial_release_date": "2024-03-19T15:10:47+00:00", "revision_history": [ { "date": "2024-03-19T15:10:47+00:00", "number": "1", "summary": "Initial version" }, { "date": "2024-03-19T15:10:47+00:00", "number": "2", "summary": "Last updated version" }, { "date": "2024-11-06T05:15:10+00:00", "number": "3", "summary": "Last generated version" } ], "status": "final", "version": "3" } }, "product_tree": { "branches": [ { "branches": [ { "branches": [ { "category": "product_name", "name": "Red 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{ "cve": "CVE-2022-3545", "cwe": { "id": "CWE-416", "name": "Use After Free" }, "discovery_date": "2023-01-16T00:00:00+00:00", "ids": [ { "system_name": "Red Hat Bugzilla ID", "text": "2161310" } ], "notes": [ { "category": "description", "text": "A vulnerability was found in area_cache_get in drivers/net/ethernet/netronome/nfp/nfpcore/nfp_cppcore.c in the Netronome Flow Processor (NFP) driver in the Linux kernel. This flaw allows a manipulation that may lead to a use-after-free issue.", "title": "Vulnerability description" }, { "category": "summary", "text": "kernel: nfp: use-after-free in area_cache_get()", "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-0:4.18.0-305.125.1.rt7.201.el8_4.src", "NFV-8.4.0.Z.TUS:kernel-rt-0:4.18.0-305.125.1.rt7.201.el8_4.x86_64", "NFV-8.4.0.Z.TUS:kernel-rt-core-0:4.18.0-305.125.1.rt7.201.el8_4.x86_64", "NFV-8.4.0.Z.TUS:kernel-rt-debug-0:4.18.0-305.125.1.rt7.201.el8_4.x86_64", "NFV-8.4.0.Z.TUS:kernel-rt-debug-core-0:4.18.0-305.125.1.rt7.201.el8_4.x86_64", "NFV-8.4.0.Z.TUS:kernel-rt-debug-debuginfo-0:4.18.0-305.125.1.rt7.201.el8_4.x86_64", 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This flaw allows a local, unprivileged attacker with access to either /dev/dri/card0 or /dev/dri/rendererD128, who can issue an ioctl() on the resulting file descriptor, to crash the system, causing a denial of service.", "title": "Vulnerability description" }, { "category": "summary", "text": "kernel: vmwgfx: NULL pointer dereference in vmw_cmd_dx_define_query", "title": "Vulnerability summary" }, { "category": "other", "text": "Systems making use of the vmwgfx driver are potentially affected by this flaw; systems without the vmwgfx driver loaded are not affected by this flaw.", "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-0:4.18.0-305.125.1.rt7.201.el8_4.src", 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After Free" }, "discovery_date": "2022-11-21T00:00:00+00:00", "ids": [ { "system_name": "Red Hat Bugzilla ID", "text": "2144379" } ], "notes": [ { "category": "description", "text": "A flaw was found in the Linux kernel. A NULL pointer dereference may occur while a slip driver is in progress to detach in sl_tx_timeout in drivers/net/slip/slip.c. This issue could allow an attacker to crash the system or leak internal kernel information.", "title": "Vulnerability description" }, { "category": "summary", "text": "kernel: null-ptr-deref vulnerabilities in sl_tx_timeout in drivers/net/slip", "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-0:4.18.0-305.125.1.rt7.201.el8_4.src", "NFV-8.4.0.Z.TUS:kernel-rt-0:4.18.0-305.125.1.rt7.201.el8_4.x86_64", "NFV-8.4.0.Z.TUS:kernel-rt-core-0:4.18.0-305.125.1.rt7.201.el8_4.x86_64", "NFV-8.4.0.Z.TUS:kernel-rt-debug-0:4.18.0-305.125.1.rt7.201.el8_4.x86_64", "NFV-8.4.0.Z.TUS:kernel-rt-debug-core-0:4.18.0-305.125.1.rt7.201.el8_4.x86_64", 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This flaw allows a local user to crash or potentially escalate their privileges on the system.", "title": "Vulnerability description" }, { "category": "summary", "text": "kernel: net/sched: sch_qfq component can be exploited if in qfq_change_agg function happens qfq_enqueue overhead", "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-0:4.18.0-305.125.1.rt7.201.el8_4.src", "NFV-8.4.0.Z.TUS:kernel-rt-0:4.18.0-305.125.1.rt7.201.el8_4.x86_64", "NFV-8.4.0.Z.TUS:kernel-rt-core-0:4.18.0-305.125.1.rt7.201.el8_4.x86_64", "NFV-8.4.0.Z.TUS:kernel-rt-debug-0:4.18.0-305.125.1.rt7.201.el8_4.x86_64", "NFV-8.4.0.Z.TUS:kernel-rt-debug-core-0:4.18.0-305.125.1.rt7.201.el8_4.x86_64", 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component can be exploited if in qfq_change_agg function happens qfq_enqueue overhead" }, { "cve": "CVE-2023-4459", "cwe": { "id": "CWE-476", "name": "NULL Pointer Dereference" }, "discovery_date": "2023-06-28T00:00:00+00:00", "ids": [ { "system_name": "Red Hat Bugzilla ID", "text": "2219268" } ], "notes": [ { "category": "description", "text": "A NULL pointer dereference flaw was found in vmxnet3_rq_cleanup in drivers/net/vmxnet3/vmxnet3_drv.c in the networking sub-component in vmxnet3 in the Linux Kernel. This issue may allow a local attacker with normal user privilege to cause a denial of service due to a missing sanity check during cleanup.", "title": "Vulnerability description" }, { "category": "summary", "text": "kernel: vmxnet3: NULL pointer dereference in vmxnet3_rq_cleanup()", "title": "Vulnerability summary" }, { "category": "other", "text": "For the Red Hat Enterprise Linux 8.7 (and higher versions) the patch that resolves the problem already applied (so no need to update then).\nSimilar for the Red Hat Enterprise Linux 9.1 (and higher versions) the patch that resolves the problem already applied. Only Red Hat Enterprise Linux 9.0 affected.", "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-0:4.18.0-305.125.1.rt7.201.el8_4.src", "NFV-8.4.0.Z.TUS:kernel-rt-0:4.18.0-305.125.1.rt7.201.el8_4.x86_64", "NFV-8.4.0.Z.TUS:kernel-rt-core-0:4.18.0-305.125.1.rt7.201.el8_4.x86_64", "NFV-8.4.0.Z.TUS:kernel-rt-debug-0:4.18.0-305.125.1.rt7.201.el8_4.x86_64", "NFV-8.4.0.Z.TUS:kernel-rt-debug-core-0:4.18.0-305.125.1.rt7.201.el8_4.x86_64", "NFV-8.4.0.Z.TUS:kernel-rt-debug-debuginfo-0:4.18.0-305.125.1.rt7.201.el8_4.x86_64", "NFV-8.4.0.Z.TUS:kernel-rt-debug-devel-0:4.18.0-305.125.1.rt7.201.el8_4.x86_64", "NFV-8.4.0.Z.TUS:kernel-rt-debug-kvm-0:4.18.0-305.125.1.rt7.201.el8_4.x86_64", 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dereference in vmxnet3_rq_cleanup()" }, { "acknowledgments": [ { "names": [ "Xingyuan Mo of IceSword Lab" ] } ], "cve": "CVE-2023-6817", "cwe": { "id": "CWE-416", "name": "Use After Free" }, "discovery_date": "2023-12-18T00:00:00+00:00", "ids": [ { "system_name": "Red Hat Bugzilla ID", "text": "2255139" } ], "notes": [ { "category": "description", "text": "A use-after-free flaw was found in the Netfilter subsystem in the Linux kernel via the nft_pipapo_walk function. This issue may allow a local user with CAP_NET_ADMIN capability to trigger an application crash, information disclosure, or local privilege escalation.", "title": "Vulnerability description" }, { "category": "summary", "text": "kernel: inactive elements in nft_pipapo_walk", "title": "Vulnerability summary" }, { "category": "other", "text": "Only local users with `CAP_NET_ADMIN` capability or root can trigger this issue. \nOn Red Hat Enterprise Linux, local unprivileged users can exploit unprivileged user namespaces (CONFIG_USER_NS) to grant themselves this capability.\n\nThe OpenShift Container Platform (OCP) control planes or master machines are based on Red Hat Enterprise Linux CoreOS (RHCOS) that consists primarily of RHEL components, therefore, it is also affected by this kernel vulnerability. A successful exploit needs necessary privileges (CAP_NET_ADMIN) and direct, local access. A local user in RHCOS is already a root with full permissions, hence existence of this vulnerability does not bring any value from the potential attacker perspective. From the OpenShift containers perspective, this vulnerability cannot be exploited as in OpenShift the cluster processes on the node are namespaced, which means that switching the namespace in the running OpenShift container will not bring necessary capabilities.\nThis means that for OpenShift, the impact of this vulnerability is Low.\n\nSimilar to the CVE-2023-32233 vulnerability, this has been explained in the following blog post as an example of a \"Container escape vulnerability\":\nhttps://www.redhat.com/en/blog/containers-vulnerability-risk-assessment", "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-0:4.18.0-305.125.1.rt7.201.el8_4.src", 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"2023-09-13T00:00:00+00:00", "ids": [ { "system_name": "Red Hat Bugzilla ID", "text": "2256279" } ], "notes": [ { "category": "description", "text": "A memory leak problem was found in ctnetlink_create_conntrack in net/netfilter/nf_conntrack_netlink.c in the Linux Kernel. This issue may allow a local attacker with CAP_NET_ADMIN privileges to cause a denial of service (DoS) attack due to a refcount overflow.", "title": "Vulnerability description" }, { "category": "summary", "text": "kernel: refcount leak in ctnetlink_create_conntrack()", "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-0:4.18.0-305.125.1.rt7.201.el8_4.src", "NFV-8.4.0.Z.TUS:kernel-rt-0:4.18.0-305.125.1.rt7.201.el8_4.x86_64", "NFV-8.4.0.Z.TUS:kernel-rt-core-0:4.18.0-305.125.1.rt7.201.el8_4.x86_64", "NFV-8.4.0.Z.TUS:kernel-rt-debug-0:4.18.0-305.125.1.rt7.201.el8_4.x86_64", "NFV-8.4.0.Z.TUS:kernel-rt-debug-core-0:4.18.0-305.125.1.rt7.201.el8_4.x86_64", 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This flaw allows a local user to crash or potentially escalate their privileges on the system.", "title": "Vulnerability description" }, { "category": "summary", "text": "kernel: ktls overwrites readonly memory pages when using function splice with a ktls socket as destination", "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-0:4.18.0-305.125.1.rt7.201.el8_4.src", "NFV-8.4.0.Z.TUS:kernel-rt-0:4.18.0-305.125.1.rt7.201.el8_4.x86_64", "NFV-8.4.0.Z.TUS:kernel-rt-core-0:4.18.0-305.125.1.rt7.201.el8_4.x86_64", "NFV-8.4.0.Z.TUS:kernel-rt-debug-0:4.18.0-305.125.1.rt7.201.el8_4.x86_64", "NFV-8.4.0.Z.TUS:kernel-rt-debug-core-0:4.18.0-305.125.1.rt7.201.el8_4.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.