rhsa-2024_0439
Vulnerability from csaf_redhat
Published
2024-01-25 09:43
Modified
2024-11-06 04:50
Summary
Red Hat Security Advisory: kernel-rt security update
Notes
Topic
An update for kernel-rt is now available for Red Hat Enterprise Linux 9.2 Extended Update Support.
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: bpf: Incorrect verifier pruning leads to unsafe code paths being incorrectly marked as safe (CVE-2023-2163)
* kernel: use after free in unix_stream_sendpage (CVE-2023-4622)
* kernel: net/sched: sch_hfsc UAF (CVE-2023-4623)
* kernel: eBPF: insufficient stack type checks in dynptr (CVE-2023-39191)
* kernel: IGB driver inadequate buffer size for frames larger than MTU (CVE-2023-45871)
* kernel: Race Condition leading to UAF in Unix Socket could happen in sk_receive_queue (BZ#2230094)
* kernel: nfp: use-after-free in area_cache_get() (CVE-2022-3545)
* kernel: null-ptr-deref vulnerabilities in sl_tx_timeout in drivers/net/slip (CVE-2022-41858)
* kernel: UAF during login when accessing the shost ipaddress (CVE-2023-2162)
* kernel: NULL pointer dereference in can_rcv_filter (CVE-2023-2166)
* kernel: Slab-out-of-bound read in compare_netdev_and_ip (CVE-2023-2176)
* kernel: use after free in vcs_read in drivers/tty/vt/vc_screen.c due to race (CVE-2023-3567)
* kernel: use-after-free in netfilter: nf_tables (CVE-2023-3777)
* kernel: use after free in nft_immediate_deactivate (CVE-2023-4015)
* kernel: A heap out-of-bounds write (CVE-2023-5717)
* hw amd: Return Address Predictor vulnerability leading to information disclosure (CVE-2023-20569)
* kernel: fbcon: out-of-sync arrays in fbcon_mode_deleted due to wrong con2fb_map assignment (CVE-2023-38409)
* kernel: use-after-free in l2cap_sock_release in net/bluetooth/l2cap_sock.c (CVE-2023-40283)
* kernel: SEV-ES local priv escalation (CVE-2023-46813)
* kernel: use-after-free in smb2_is_status_io_timeout() (CVE-2023-1192)
* kernel: NULL pointer dereference in dpll_pin_parent_pin_set() in drivers/dpll/dpll_netlink.c (CVE-2023-6679)
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.
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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* kernel: bpf: Incorrect verifier pruning leads to unsafe code paths being incorrectly marked as safe (CVE-2023-2163)\n\n* kernel: use after free in unix_stream_sendpage (CVE-2023-4622)\n\n* kernel: net/sched: sch_hfsc UAF (CVE-2023-4623)\n\n* kernel: eBPF: insufficient stack type checks in dynptr (CVE-2023-39191)\n\n* kernel: IGB driver inadequate buffer size for frames larger than MTU (CVE-2023-45871)\n\n* kernel: Race Condition leading to UAF in Unix Socket could happen in sk_receive_queue (BZ#2230094)\n\n* kernel: nfp: use-after-free in area_cache_get() (CVE-2022-3545)\n\n* kernel: null-ptr-deref vulnerabilities in sl_tx_timeout in drivers/net/slip (CVE-2022-41858)\n\n* kernel: UAF during login when accessing the shost ipaddress (CVE-2023-2162)\n\n* kernel: NULL pointer dereference in can_rcv_filter (CVE-2023-2166)\n\n* kernel: Slab-out-of-bound read in compare_netdev_and_ip (CVE-2023-2176)\n\n* kernel: use after free in vcs_read in drivers/tty/vt/vc_screen.c due to race (CVE-2023-3567)\n\n* kernel: use-after-free in netfilter: nf_tables (CVE-2023-3777)\n\n* kernel: use after free in nft_immediate_deactivate (CVE-2023-4015)\n\n* kernel: A heap out-of-bounds write (CVE-2023-5717)\n\n* hw amd: Return Address Predictor vulnerability leading to information disclosure (CVE-2023-20569)\n\n* kernel: fbcon: out-of-sync arrays in fbcon_mode_deleted due to wrong con2fb_map assignment (CVE-2023-38409)\n\n* kernel: use-after-free in l2cap_sock_release in net/bluetooth/l2cap_sock.c (CVE-2023-40283)\n\n* kernel: SEV-ES local priv escalation (CVE-2023-46813)\n\n* kernel: use-after-free in smb2_is_status_io_timeout() (CVE-2023-1192)\n\n* kernel: NULL pointer dereference in dpll_pin_parent_pin_set() in drivers/dpll/dpll_netlink.c (CVE-2023-6679)\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-2024:0439", "url": "https://access.redhat.com/errata/RHSA-2024:0439" }, { "category": "external", "summary": "https://access.redhat.com/security/updates/classification/#important", "url": "https://access.redhat.com/security/updates/classification/#important" }, { "category": "external", "summary": "2144379", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2144379" }, { "category": "external", "summary": "2154178", 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"summary": "2246945", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2246945" }, { "category": "external", "summary": "2253986", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2253986" }, { "category": "self", "summary": "Canonical URL", "url": "https://security.access.redhat.com/data/csaf/v2/advisories/2024/rhsa-2024_0439.json" } ], "title": "Red Hat Security Advisory: kernel-rt security update", "tracking": { "current_release_date": "2024-11-06T04:50:29+00:00", "generator": { "date": "2024-11-06T04:50:29+00:00", "engine": { "name": "Red Hat SDEngine", "version": "4.1.1" } }, "id": "RHSA-2024:0439", "initial_release_date": "2024-01-25T09:43:34+00:00", "revision_history": [ { "date": "2024-01-25T09:43:34+00:00", "number": "1", "summary": "Initial version" }, { "date": "2024-01-25T09:43:34+00:00", "number": "2", "summary": "Last updated version" }, { "date": "2024-11-06T04:50:29+00:00", "number": "3", "summary": "Last generated version" } ], "status": "final", "version": "3" } 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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-9.2.0.Z.EUS:kernel-rt-0:5.14.0-284.48.1.rt14.333.el9_2.src", "NFV-9.2.0.Z.EUS:kernel-rt-0:5.14.0-284.48.1.rt14.333.el9_2.x86_64", "NFV-9.2.0.Z.EUS:kernel-rt-core-0:5.14.0-284.48.1.rt14.333.el9_2.x86_64", "NFV-9.2.0.Z.EUS:kernel-rt-debug-0:5.14.0-284.48.1.rt14.333.el9_2.x86_64", "NFV-9.2.0.Z.EUS:kernel-rt-debug-core-0:5.14.0-284.48.1.rt14.333.el9_2.x86_64", "NFV-9.2.0.Z.EUS:kernel-rt-debug-debuginfo-0:5.14.0-284.48.1.rt14.333.el9_2.x86_64", 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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-9.2.0.Z.EUS:kernel-rt-0:5.14.0-284.48.1.rt14.333.el9_2.src", "NFV-9.2.0.Z.EUS:kernel-rt-0:5.14.0-284.48.1.rt14.333.el9_2.x86_64", "NFV-9.2.0.Z.EUS:kernel-rt-core-0:5.14.0-284.48.1.rt14.333.el9_2.x86_64", "NFV-9.2.0.Z.EUS:kernel-rt-debug-0:5.14.0-284.48.1.rt14.333.el9_2.x86_64", "NFV-9.2.0.Z.EUS:kernel-rt-debug-core-0:5.14.0-284.48.1.rt14.333.el9_2.x86_64", 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use-after-free flaw was found in smb2_is_status_io_timeout() in CIFS in the Linux Kernel. After CIFS transfers response data to a system call, there are still local variable points to the memory region, and if the system call frees it faster than CIFS uses it, CIFS will access a free memory region, leading to a denial of service.", "title": "Vulnerability description" }, { "category": "summary", "text": "kernel: use-after-free in smb2_is_status_io_timeout()", "title": "Vulnerability summary" }, { "category": "other", "text": "Because analysis indicates that this issue will only cause momentary interruptions to connections, Red Hat rates the impact of this flaw as Low.", "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-9.2.0.Z.EUS:kernel-rt-0:5.14.0-284.48.1.rt14.333.el9_2.src", 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"description", "text": "A use-after-free flaw was found in iscsi_sw_tcp_session_create in drivers/scsi/iscsi_tcp.c in the SCSI sub-component in the Linux Kernel. This issue could allow an attacker to leak kernel internal information.", "title": "Vulnerability description" }, { "category": "summary", "text": "kernel: UAF during login when accessing the shost ipaddress", "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-9.2.0.Z.EUS:kernel-rt-0:5.14.0-284.48.1.rt14.333.el9_2.src", "NFV-9.2.0.Z.EUS:kernel-rt-0:5.14.0-284.48.1.rt14.333.el9_2.x86_64", "NFV-9.2.0.Z.EUS:kernel-rt-core-0:5.14.0-284.48.1.rt14.333.el9_2.x86_64", "NFV-9.2.0.Z.EUS:kernel-rt-debug-0:5.14.0-284.48.1.rt14.333.el9_2.x86_64", "NFV-9.2.0.Z.EUS:kernel-rt-debug-core-0:5.14.0-284.48.1.rt14.333.el9_2.x86_64", 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marked as safe, resulting in arbitrary read/writes in kernel memory, lateral privilege escalation, and container escape.", "title": "Vulnerability description" }, { "category": "summary", "text": "kernel: bpf: Incorrect verifier pruning leads to unsafe code paths being incorrectly marked as safe", "title": "Vulnerability summary" }, { "category": "other", "text": "The Red Hat Enterprise Linux 9.3 not affected, because the required patch applied before this CVE creation. For the Red Hat Enterprise Linux 9 before version 9.3 required fixes applied too.", "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-9.2.0.Z.EUS:kernel-rt-0:5.14.0-284.48.1.rt14.333.el9_2.src", "NFV-9.2.0.Z.EUS:kernel-rt-0:5.14.0-284.48.1.rt14.333.el9_2.x86_64", "NFV-9.2.0.Z.EUS:kernel-rt-core-0:5.14.0-284.48.1.rt14.333.el9_2.x86_64", "NFV-9.2.0.Z.EUS:kernel-rt-debug-0:5.14.0-284.48.1.rt14.333.el9_2.x86_64", "NFV-9.2.0.Z.EUS:kernel-rt-debug-core-0:5.14.0-284.48.1.rt14.333.el9_2.x86_64", "NFV-9.2.0.Z.EUS:kernel-rt-debug-debuginfo-0:5.14.0-284.48.1.rt14.333.el9_2.x86_64", "NFV-9.2.0.Z.EUS:kernel-rt-debug-devel-0:5.14.0-284.48.1.rt14.333.el9_2.x86_64", 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"2023-04-18T00:00:00+00:00", "ids": [ { "system_name": "Red Hat Bugzilla ID", "text": "2187813" } ], "notes": [ { "category": "description", "text": "A NULL pointer dereference issue was found in the can protocol in net/can/af_can.c in the Linux kernel, where ml_priv may not be initialized in the receive path of CAN frames. This flaw allows a local user to crash the system or cause a denial of service.", "title": "Vulnerability description" }, { "category": "summary", "text": "kernel: NULL pointer dereference in can_rcv_filter", "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-9.2.0.Z.EUS:kernel-rt-0:5.14.0-284.48.1.rt14.333.el9_2.src", "NFV-9.2.0.Z.EUS:kernel-rt-0:5.14.0-284.48.1.rt14.333.el9_2.x86_64", "NFV-9.2.0.Z.EUS:kernel-rt-core-0:5.14.0-284.48.1.rt14.333.el9_2.x86_64", "NFV-9.2.0.Z.EUS:kernel-rt-debug-0:5.14.0-284.48.1.rt14.333.el9_2.x86_64", "NFV-9.2.0.Z.EUS:kernel-rt-debug-core-0:5.14.0-284.48.1.rt14.333.el9_2.x86_64", 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An improper cleanup results in an out-of-boundary read. This flaw allows a local user to crash or escalate privileges on the system.", "title": "Vulnerability description" }, { "category": "summary", "text": "kernel: Slab-out-of-bound read in compare_netdev_and_ip", "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-9.2.0.Z.EUS:kernel-rt-0:5.14.0-284.48.1.rt14.333.el9_2.src", "NFV-9.2.0.Z.EUS:kernel-rt-0:5.14.0-284.48.1.rt14.333.el9_2.x86_64", "NFV-9.2.0.Z.EUS:kernel-rt-core-0:5.14.0-284.48.1.rt14.333.el9_2.x86_64", "NFV-9.2.0.Z.EUS:kernel-rt-debug-0:5.14.0-284.48.1.rt14.333.el9_2.x86_64", "NFV-9.2.0.Z.EUS:kernel-rt-debug-core-0:5.14.0-284.48.1.rt14.333.el9_2.x86_64", 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This issue may allow an attacker with local user access to cause a system crash or leak internal kernel information.", "title": "Vulnerability description" }, { "category": "summary", "text": "kernel: use after free in vcs_read in drivers/tty/vt/vc_screen.c due to race", "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-9.2.0.Z.EUS:kernel-rt-0:5.14.0-284.48.1.rt14.333.el9_2.src", "NFV-9.2.0.Z.EUS:kernel-rt-0:5.14.0-284.48.1.rt14.333.el9_2.x86_64", "NFV-9.2.0.Z.EUS:kernel-rt-core-0:5.14.0-284.48.1.rt14.333.el9_2.x86_64", "NFV-9.2.0.Z.EUS:kernel-rt-debug-0:5.14.0-284.48.1.rt14.333.el9_2.x86_64", "NFV-9.2.0.Z.EUS:kernel-rt-debug-core-0:5.14.0-284.48.1.rt14.333.el9_2.x86_64", 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When nf_tables_delrule() is flushing table rules, it is not checked whether the chain is bound, and the chain\u0027s owner rule can release the objects in certain circumstances.", "title": "Vulnerability description" }, { "category": "summary", "text": "kernel: use-after-free in netfilter: nf_tables", "title": "Vulnerability summary" }, { "category": "other", "text": "Exploiting this flaw will require CAP_NET_ADMIN access privilege in any user or network namespace.\n\nAnd,\n\nOn non-containerized deployments of Red Hat Enterprise Linux, you can disable user namespaces by setting user.max_user_namespaces to 0:\n\n# echo \"user.max_user_namespaces=0\" \u003e /etc/sysctl.d/userns.conf\n# sysctl -p /etc/sysctl.d/userns.conf\n\nOn containerized deployments, such as Red Hat OpenShift Container Platform, do not use this mitigation as the functionality is needed to be enabled.", "title": "Statement" }, { "category": "general", "text": "The CVSS score(s) listed for this vulnerability do not 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On an error when building a nftables rule, deactivating immediate expressions in nft_immediate_deactivate() can unbind the chain and objects can be deactivated but used later.", "title": "Vulnerability description" }, { "category": "summary", "text": "kernel: use after free in nft_immediate_deactivate", "title": "Vulnerability summary" }, { "category": "other", "text": "Exploiting this flaw will require CAP_NET_ADMIN access privilege in any user or network namespace and on non-containerized deployments of Red Hat Enterprise Linux, you can disable user namespaces by setting user.max_user_namespaces to 0:\n\n# echo \"user.max_user_namespaces=0\" \u003e /etc/sysctl.d/userns.conf\n# sysctl -p /etc/sysctl.d/userns.conf\n\nOn containerized deployments such as Red Hat OpenShift Container Platform, do not use this mitigation as the functionality is needed to be enabled.", "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-9.2.0.Z.EUS:kernel-rt-0:5.14.0-284.48.1.rt14.333.el9_2.src", "NFV-9.2.0.Z.EUS:kernel-rt-0:5.14.0-284.48.1.rt14.333.el9_2.x86_64", "NFV-9.2.0.Z.EUS:kernel-rt-core-0:5.14.0-284.48.1.rt14.333.el9_2.x86_64", "NFV-9.2.0.Z.EUS:kernel-rt-debug-0:5.14.0-284.48.1.rt14.333.el9_2.x86_64", "NFV-9.2.0.Z.EUS:kernel-rt-debug-core-0:5.14.0-284.48.1.rt14.333.el9_2.x86_64", "NFV-9.2.0.Z.EUS:kernel-rt-debug-debuginfo-0:5.14.0-284.48.1.rt14.333.el9_2.x86_64", "NFV-9.2.0.Z.EUS:kernel-rt-debug-devel-0:5.14.0-284.48.1.rt14.333.el9_2.x86_64", "NFV-9.2.0.Z.EUS:kernel-rt-debug-kvm-0:5.14.0-284.48.1.rt14.333.el9_2.x86_64", "NFV-9.2.0.Z.EUS:kernel-rt-debug-modules-0:5.14.0-284.48.1.rt14.333.el9_2.x86_64", "NFV-9.2.0.Z.EUS:kernel-rt-debug-modules-core-0:5.14.0-284.48.1.rt14.333.el9_2.x86_64", 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The unix_stream_sendpage() function tries to add data to the last skb in the peer\u0027s recv queue without locking the queue. This issue leads to a race condition where the unix_stream_sendpage() function could access a skb that is being released by garbage collection, resulting in a use-after-free issue.", "title": "Vulnerability description" }, { "category": "summary", "text": "kernel: use after free in unix_stream_sendpage", "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-9.2.0.Z.EUS:kernel-rt-0:5.14.0-284.48.1.rt14.333.el9_2.src", "NFV-9.2.0.Z.EUS:kernel-rt-0:5.14.0-284.48.1.rt14.333.el9_2.x86_64", "NFV-9.2.0.Z.EUS:kernel-rt-core-0:5.14.0-284.48.1.rt14.333.el9_2.x86_64", "NFV-9.2.0.Z.EUS:kernel-rt-debug-0:5.14.0-284.48.1.rt14.333.el9_2.x86_64", 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net/sched: sch_hfsc (HFSC qdisc traffic control) component that can be exploited to achieve local privilege escalation. If a class with a link-sharing curve, for example, with the HFSC_FSC flag set, has a parent without a link-sharing curve, then init_vf() will call vttree_insert() on the parent, but vttree_remove() will be skipped in update_vf(). This leaves a dangling pointer that can cause a use-after-free issue.", "title": "Vulnerability description" }, { "category": "summary", "text": "kernel: net/sched: sch_hfsc UAF", "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-9.2.0.Z.EUS:kernel-rt-0:5.14.0-284.48.1.rt14.333.el9_2.src", "NFV-9.2.0.Z.EUS:kernel-rt-0:5.14.0-284.48.1.rt14.333.el9_2.x86_64", "NFV-9.2.0.Z.EUS:kernel-rt-core-0:5.14.0-284.48.1.rt14.333.el9_2.x86_64", "NFV-9.2.0.Z.EUS:kernel-rt-debug-0:5.14.0-284.48.1.rt14.333.el9_2.x86_64", "NFV-9.2.0.Z.EUS:kernel-rt-debug-core-0:5.14.0-284.48.1.rt14.333.el9_2.x86_64", "NFV-9.2.0.Z.EUS:kernel-rt-debug-debuginfo-0:5.14.0-284.48.1.rt14.333.el9_2.x86_64", 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A condition can be triggered that allows data to be written past the end or before the beginning of the intended memory buffer. This issue may lead to a system crash, code execution, or local privilege escalation.", "title": "Vulnerability description" }, { "category": "summary", "text": "kernel: A heap out-of-bounds write when function perf_read_group is called and sibling_list is smaller than its child\u0027s sibling_list", "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-9.2.0.Z.EUS:kernel-rt-0:5.14.0-284.48.1.rt14.333.el9_2.src", "NFV-9.2.0.Z.EUS:kernel-rt-0:5.14.0-284.48.1.rt14.333.el9_2.x86_64", "NFV-9.2.0.Z.EUS:kernel-rt-core-0:5.14.0-284.48.1.rt14.333.el9_2.x86_64", "NFV-9.2.0.Z.EUS:kernel-rt-debug-0:5.14.0-284.48.1.rt14.333.el9_2.x86_64", 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"notes": [ { "category": "description", "text": "A null pointer dereference vulnerability was found in dpll_pin_parent_pin_set() in drivers/dpll/dpll_netlink.c in the Digital Phase Locked Loop (DPLL) subsystem in the Linux kernel. This issue could be exploited to trigger a denial of service.", "title": "Vulnerability description" }, { "category": "summary", "text": "kernel: NULL pointer dereference in dpll_pin_parent_pin_set() in drivers/dpll/dpll_netlink.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-9.2.0.Z.EUS:kernel-rt-0:5.14.0-284.48.1.rt14.333.el9_2.src", "NFV-9.2.0.Z.EUS:kernel-rt-0:5.14.0-284.48.1.rt14.333.el9_2.x86_64", "NFV-9.2.0.Z.EUS:kernel-rt-core-0:5.14.0-284.48.1.rt14.333.el9_2.x86_64", "NFV-9.2.0.Z.EUS:kernel-rt-debug-0:5.14.0-284.48.1.rt14.333.el9_2.x86_64", "NFV-9.2.0.Z.EUS:kernel-rt-debug-core-0:5.14.0-284.48.1.rt14.333.el9_2.x86_64", 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Some AMD CPUs may allow an attacker to influence the return address prediction. This issue may result in speculative execution at an attacker-controlled instruction pointer register, potentially leading to information disclosure.", "title": "Vulnerability description" }, { "category": "summary", "text": "amd: Return Address Predictor vulnerability leading to information disclosure", "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-9.2.0.Z.EUS:kernel-rt-0:5.14.0-284.48.1.rt14.333.el9_2.src", "NFV-9.2.0.Z.EUS:kernel-rt-0:5.14.0-284.48.1.rt14.333.el9_2.x86_64", "NFV-9.2.0.Z.EUS:kernel-rt-core-0:5.14.0-284.48.1.rt14.333.el9_2.x86_64", "NFV-9.2.0.Z.EUS:kernel-rt-debug-0:5.14.0-284.48.1.rt14.333.el9_2.x86_64", 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"category": "impact", "details": "Moderate" } ], "title": "amd: Return Address Predictor vulnerability leading to information disclosure" }, { "cve": "CVE-2023-38409", "cwe": { "id": "CWE-129", "name": "Improper Validation of Array Index" }, "discovery_date": "2023-07-20T00:00:00+00:00", "ids": [ { "system_name": "Red Hat Bugzilla ID", "text": "2230042" } ], "notes": [ { "category": "description", "text": "A memory corruption flaw was found in set_con2fb_map in drivers/video/fbdev/core/fbcon.c in the Framebuffer Console in the Linux kernel. This flaw allows a local attacker to crash the system, leading to a denial of service.", "title": "Vulnerability description" }, { "category": "summary", "text": "kernel: fbcon: out-of-sync arrays in fbcon_mode_deleted due to wrong con2fb_map assignment", "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-9.2.0.Z.EUS:kernel-rt-0:5.14.0-284.48.1.rt14.333.el9_2.src", "NFV-9.2.0.Z.EUS:kernel-rt-0:5.14.0-284.48.1.rt14.333.el9_2.x86_64", "NFV-9.2.0.Z.EUS:kernel-rt-core-0:5.14.0-284.48.1.rt14.333.el9_2.x86_64", "NFV-9.2.0.Z.EUS:kernel-rt-debug-0:5.14.0-284.48.1.rt14.333.el9_2.x86_64", "NFV-9.2.0.Z.EUS:kernel-rt-debug-core-0:5.14.0-284.48.1.rt14.333.el9_2.x86_64", 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"2226783" } ], "notes": [ { "category": "description", "text": "An improper input validation flaw was found in the eBPF subsystem in the Linux kernel. The issue occurs due to a lack of proper validation of dynamic pointers within user-supplied eBPF programs prior to executing them. This may allow an attacker with CAP_BPF privileges to escalate privileges and execute arbitrary code in the context of the kernel.", "title": "Vulnerability description" }, { "category": "summary", "text": "kernel: eBPF: insufficient stack type checks in dynptr", "title": "Vulnerability summary" }, { "category": "other", "text": "Dynamic pointers were introduced in Red Hat Enterprise Linux 9.2 while rebasing BPF to version 5.19. Previous RHEL releases (7, 8, and 9.0) are not affected by this CVE.", "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-9.2.0.Z.EUS:kernel-rt-0:5.14.0-284.48.1.rt14.333.el9_2.src", "NFV-9.2.0.Z.EUS:kernel-rt-0:5.14.0-284.48.1.rt14.333.el9_2.x86_64", "NFV-9.2.0.Z.EUS:kernel-rt-core-0:5.14.0-284.48.1.rt14.333.el9_2.x86_64", "NFV-9.2.0.Z.EUS:kernel-rt-debug-0:5.14.0-284.48.1.rt14.333.el9_2.x86_64", "NFV-9.2.0.Z.EUS:kernel-rt-debug-core-0:5.14.0-284.48.1.rt14.333.el9_2.x86_64", "NFV-9.2.0.Z.EUS:kernel-rt-debug-debuginfo-0:5.14.0-284.48.1.rt14.333.el9_2.x86_64", "NFV-9.2.0.Z.EUS:kernel-rt-debug-devel-0:5.14.0-284.48.1.rt14.333.el9_2.x86_64", 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"category": "description", "text": "A flaw was found in igb_configure_rx_ring in drivers/net/ethernet/intel/igb/igb_main.c in the IGB driver in the Linux kernel. An overflow of the contents from a packet that is too large will overflow into the kernel\u0027s ring buffer, leading to a system integrity issue.", "title": "Vulnerability description" }, { "category": "summary", "text": "kernel: IGB driver inadequate buffer size for frames larger than MTU", "title": "Vulnerability summary" }, { "category": "other", "text": "This flaw is rated as Important because of its nature of exposure to the threat of impacting Confidentiality, Integrity and Availability by an attacker while being in an adjacent physical layer with no privilege required.", "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-9.2.0.Z.EUS:kernel-rt-0:5.14.0-284.48.1.rt14.333.el9_2.src", 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This issue occurs when a user in SEV guest VM accesses MMIO registers, which could allow a local user to crash the system or escalate their privileges on the system.", "title": "Vulnerability description" }, { "category": "summary", "text": "kernel: SEV-ES local priv 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-9.2.0.Z.EUS:kernel-rt-0:5.14.0-284.48.1.rt14.333.el9_2.src", "NFV-9.2.0.Z.EUS:kernel-rt-0:5.14.0-284.48.1.rt14.333.el9_2.x86_64", "NFV-9.2.0.Z.EUS:kernel-rt-core-0:5.14.0-284.48.1.rt14.333.el9_2.x86_64", "NFV-9.2.0.Z.EUS:kernel-rt-debug-0:5.14.0-284.48.1.rt14.333.el9_2.x86_64", "NFV-9.2.0.Z.EUS:kernel-rt-debug-core-0:5.14.0-284.48.1.rt14.333.el9_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.