rhsa-2024_1306
Vulnerability from csaf_redhat
Published
2024-03-13 09:11
Modified
2024-11-06 05:13
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 9.0 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):
* memcg does not limit the number of POSIX file locks allowing memory exhaustion (CVE-2022-0480)
* vmwgfx: NULL pointer dereference in vmw_cmd_dx_define_query (CVE-2022-38096)
* use-after-free in smb2_is_status_io_timeout() (CVE-2023-1192)
* 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)
* UAF in nftables when nft_set_lookup_global triggered after handling named and anonymous sets in batch requests (CVE-2023-3390)
* out-of-bounds access in relay_file_read (CVE-2023-3268)
* vmxnet3: NULL pointer dereference in vmxnet3_rq_cleanup() (CVE-2023-4459)
* Gather Data Sampling (GDS) side channel vulnerability (CVE-2022-40982,Downfall)
* net/sched: cls_u32 component reference counter leak if tcf_change_indev() fails (CVE-2023-3609)
* fbcon: out-of-sync arrays in fbcon_mode_deleted due to wrong con2fb_map assignment (CVE-2023-38409)
* Race Condition leading to UAF in Unix Socket could happen in sk_receive_queue ()
* use-after-free in l2cap_sock_release in net/bluetooth/l2cap_sock.c (CVE-2023-40283)
* use after free in unix_stream_sendpage (CVE-2023-4622)
* bpf: Incorrect verifier pruning leads to unsafe code paths being incorrectly marked as safe (CVE-2023-2163)
* A heap out-of-bounds write when function perf_read_group is called and sibling_list is smaller than its child's sibling_list (CVE-2023-5717)
* ktls overwrites readonly memory pages when using function splice with a ktls socket as destination (CVE-2024-0646)
* use-after-free in IPv4 IGMP (CVE-2023-6932)
* GSM multiplexing race condition leads to privilege escalation (CVE-2023-6546,ZDI-CAN-20527)
* refcount leak in ctnetlink_create_conntrack() (CVE-2023-7192)
Bug Fix(es):
* fbcon: out-of-sync arrays in fbcon_mode_deleted due to wrong con2fb_map assignment (JIRA:RHEL-1107)
* out-of-bounds access in relay_file_read (JIRA:RHEL-1749)
* vmxnet3: NULL pointer dereference in vmxnet3_rq_cleanup() (JIRA:RHEL-18085)
* NULL pointer dereference in can_rcv_filter (JIRA:RHEL-19524)
* update RT source tree to the latest RHEL-9.0.z Batch 15 (JIRA:RHEL-21555)
* Gather Data Sampling (GDS) side channel vulnerability (JIRA:RHEL-9285)
* A heap out-of-bounds write (JIRA:RHEL-18011)
* Slab-out-of-bound read in compare_netdev_and_ip (JIRA:RHEL-19398)
* A flaw leading to a use-after-free in area_cache_get() (JIRA:RHEL-19534)
* Incorrect verifier pruning leads to unsafe code paths being incorrectly marked as safe (JIRA:RHEL-8980)
* various flaws (JIRA:RHEL-16150)
* refcount leak in ctnetlink_create_conntrack() (JIRA:RHEL-20311)
* use-after-free in l2cap_sock_release in net/bluetooth/l2cap_sock.c (JIRA:RHEL-20502)
* ktls overwrites readonly memory pages when using function splice with a ktls socket as destination (JIRA:RHEL-22095)
* use-after-free in smb2_is_status_io_timeout() (JIRA:RHEL-15171)
* use-after-free in IPv4 IGMP (JIRA:RHEL-21658)
* memcg does not limit the number of POSIX file locks allowing memory exhaustion (JIRA:RHEL-8996)
* GSM multiplexing race condition leads to privilege escalation (JIRA:RHEL-19968)
* NULL pointer dereference in vmw_cmd_dx_define_query (JIRA:RHEL-22751)
* kernel: sched/membarrier: reduce the ability to hammer on sys_membarrier
(JIRA:RHEL-26381)
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* memcg does not limit the number of POSIX file locks allowing memory exhaustion (CVE-2022-0480)\n\n* vmwgfx: NULL pointer dereference in vmw_cmd_dx_define_query (CVE-2022-38096)\n\n* use-after-free in smb2_is_status_io_timeout() (CVE-2023-1192)\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* UAF in nftables when nft_set_lookup_global triggered after handling named and anonymous sets in batch requests (CVE-2023-3390)\n\n* out-of-bounds access in relay_file_read (CVE-2023-3268)\n\n* vmxnet3: NULL pointer dereference in vmxnet3_rq_cleanup() (CVE-2023-4459)\n\n* Gather Data Sampling (GDS) side channel vulnerability (CVE-2022-40982,Downfall)\n\n* net/sched: cls_u32 component reference counter leak if tcf_change_indev() fails (CVE-2023-3609)\n\n* fbcon: out-of-sync arrays in fbcon_mode_deleted due to wrong con2fb_map assignment (CVE-2023-38409)\n\n* Race Condition leading to UAF in Unix Socket could happen in sk_receive_queue ()\n\n* use-after-free in l2cap_sock_release in net/bluetooth/l2cap_sock.c (CVE-2023-40283)\n\n* use after free in unix_stream_sendpage (CVE-2023-4622)\n\n* bpf: Incorrect verifier pruning leads to unsafe code paths being incorrectly marked as safe (CVE-2023-2163)\n\n* A heap out-of-bounds write when function perf_read_group is called and sibling_list is smaller than its child\u0027s sibling_list (CVE-2023-5717)\n\n* ktls overwrites readonly memory pages when using function splice with a ktls socket as destination (CVE-2024-0646)\n\n* use-after-free in IPv4 IGMP (CVE-2023-6932)\n\n* GSM multiplexing race condition leads to privilege escalation (CVE-2023-6546,ZDI-CAN-20527)\n\n* refcount leak in ctnetlink_create_conntrack() (CVE-2023-7192)\n\nBug Fix(es):\n\n* fbcon: out-of-sync arrays in fbcon_mode_deleted due to wrong con2fb_map assignment (JIRA:RHEL-1107)\n\n* out-of-bounds access in relay_file_read (JIRA:RHEL-1749)\n\n* vmxnet3: NULL pointer dereference in vmxnet3_rq_cleanup() (JIRA:RHEL-18085)\n\n* NULL pointer dereference in can_rcv_filter (JIRA:RHEL-19524)\n\n* update RT source tree to the latest RHEL-9.0.z Batch 15 (JIRA:RHEL-21555)\n\n* Gather Data Sampling (GDS) side channel vulnerability (JIRA:RHEL-9285)\n\n* A heap out-of-bounds write (JIRA:RHEL-18011)\n\n* Slab-out-of-bound read in compare_netdev_and_ip (JIRA:RHEL-19398)\n\n* A flaw leading to a use-after-free in area_cache_get() (JIRA:RHEL-19534)\n\n* Incorrect verifier pruning leads to unsafe code paths being incorrectly marked as safe (JIRA:RHEL-8980)\n\n* various flaws (JIRA:RHEL-16150)\n\n* refcount leak in ctnetlink_create_conntrack() (JIRA:RHEL-20311)\n\n* use-after-free in l2cap_sock_release in net/bluetooth/l2cap_sock.c (JIRA:RHEL-20502)\n\n* ktls overwrites readonly memory pages when using function splice with a ktls socket as destination (JIRA:RHEL-22095)\n\n* use-after-free in smb2_is_status_io_timeout() (JIRA:RHEL-15171)\n\n* use-after-free in IPv4 IGMP (JIRA:RHEL-21658)\n\n* memcg does not limit the number of POSIX file locks allowing memory exhaustion (JIRA:RHEL-8996)\n\n* GSM multiplexing race condition leads to privilege escalation (JIRA:RHEL-19968)\n\n* NULL pointer dereference in vmw_cmd_dx_define_query (JIRA:RHEL-22751)\n\n* kernel: sched/membarrier: reduce the ability to hammer on sys_membarrier\n(JIRA:RHEL-26381)", "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-2024:1306", "url": "https://access.redhat.com/errata/RHSA-2024:1306" }, { "category": "external", "summary": "https://access.redhat.com/security/updates/classification/#important", "url": "https://access.redhat.com/security/updates/classification/#important" }, { "category": "external", "summary": "2049700", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2049700" }, { "category": "external", "summary": "2133452", 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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-9.0.0.Z.EUS:kernel-rt-0:5.14.0-70.93.1.rt21.165.el9_0.src", "NFV-9.0.0.Z.EUS:kernel-rt-0:5.14.0-70.93.1.rt21.165.el9_0.x86_64", "NFV-9.0.0.Z.EUS:kernel-rt-core-0:5.14.0-70.93.1.rt21.165.el9_0.x86_64", "NFV-9.0.0.Z.EUS:kernel-rt-debug-0:5.14.0-70.93.1.rt21.165.el9_0.x86_64", "NFV-9.0.0.Z.EUS:kernel-rt-debug-core-0:5.14.0-70.93.1.rt21.165.el9_0.x86_64", "NFV-9.0.0.Z.EUS:kernel-rt-debug-debuginfo-0:5.14.0-70.93.1.rt21.165.el9_0.x86_64", 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Dereference" }, "discovery_date": "2022-09-09T00:00:00+00:00", "ids": [ { "system_name": "Red Hat Bugzilla ID", "text": "2133452" } ], "notes": [ { "category": "description", "text": "A NULL pointer dereference issue was found in the Linux kernel\u0027s vmwgfx driver in vmw_cmd_dx_define_query. 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-9.0.0.Z.EUS:kernel-rt-0:5.14.0-70.93.1.rt21.165.el9_0.src", 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"A Gather Data Sampling (GDS) transient execution side-channel vulnerability was found affecting certain Intel processors. This issue may allow a local attacker using gather instruction (load from memory) to infer stale data from previously used vector registers on the same physical core.", "title": "Vulnerability description" }, { "category": "summary", "text": "hw: Intel: Gather Data Sampling (GDS) side channel vulnerability", "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-9.0.0.Z.EUS:kernel-rt-0:5.14.0-70.93.1.rt21.165.el9_0.src", "NFV-9.0.0.Z.EUS:kernel-rt-0:5.14.0-70.93.1.rt21.165.el9_0.x86_64", "NFV-9.0.0.Z.EUS:kernel-rt-core-0:5.14.0-70.93.1.rt21.165.el9_0.x86_64", "NFV-9.0.0.Z.EUS:kernel-rt-debug-0:5.14.0-70.93.1.rt21.165.el9_0.x86_64", 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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-9.0.0.Z.EUS:kernel-rt-0:5.14.0-70.93.1.rt21.165.el9_0.src", 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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-9.0.0.Z.EUS:kernel-rt-0:5.14.0-70.93.1.rt21.165.el9_0.src", "NFV-9.0.0.Z.EUS:kernel-rt-0:5.14.0-70.93.1.rt21.165.el9_0.x86_64", "NFV-9.0.0.Z.EUS:kernel-rt-core-0:5.14.0-70.93.1.rt21.165.el9_0.x86_64", "NFV-9.0.0.Z.EUS:kernel-rt-debug-0:5.14.0-70.93.1.rt21.165.el9_0.x86_64", "NFV-9.0.0.Z.EUS:kernel-rt-debug-core-0:5.14.0-70.93.1.rt21.165.el9_0.x86_64", "NFV-9.0.0.Z.EUS:kernel-rt-debug-debuginfo-0:5.14.0-70.93.1.rt21.165.el9_0.x86_64", "NFV-9.0.0.Z.EUS:kernel-rt-debug-devel-0:5.14.0-70.93.1.rt21.165.el9_0.x86_64", 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"summary": "Canonical URL", "url": "https://access.redhat.com/security/cve/CVE-2023-2163" }, { "category": "external", "summary": "RHBZ#2240249", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2240249" }, { "category": "external", "summary": "https://www.cve.org/CVERecord?id=CVE-2023-2163", "url": "https://www.cve.org/CVERecord?id=CVE-2023-2163" }, { "category": "external", "summary": "https://nvd.nist.gov/vuln/detail/CVE-2023-2163", "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-2163" }, { "category": "external", "summary": "https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=71b547f561247897a0a14f3082730156c0533fed", "url": "https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=71b547f561247897a0a14f3082730156c0533fed" } ], "release_date": "2023-04-19T00:00:00+00:00", "remediations": [ { "category": "vendor_fix", "date": "2024-03-13T09:11:23+00:00", "details": "For details on how to apply this update, which includes the 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{ "names": [ "Wei Chen" ] } ], "cve": "CVE-2023-2166", "cwe": { "id": "CWE-476", "name": "NULL Pointer Dereference" }, "discovery_date": "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-9.0.0.Z.EUS:kernel-rt-0:5.14.0-70.93.1.rt21.165.el9_0.src", "NFV-9.0.0.Z.EUS:kernel-rt-0:5.14.0-70.93.1.rt21.165.el9_0.x86_64", "NFV-9.0.0.Z.EUS:kernel-rt-core-0:5.14.0-70.93.1.rt21.165.el9_0.x86_64", "NFV-9.0.0.Z.EUS:kernel-rt-debug-0:5.14.0-70.93.1.rt21.165.el9_0.x86_64", "NFV-9.0.0.Z.EUS:kernel-rt-debug-core-0:5.14.0-70.93.1.rt21.165.el9_0.x86_64", "NFV-9.0.0.Z.EUS:kernel-rt-debug-debuginfo-0:5.14.0-70.93.1.rt21.165.el9_0.x86_64", 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An improper cleanup results in an out-of-boundary read. 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"category": "description", "text": "An out-of-bounds (OOB) memory access flaw was found in the Linux kernel in relay_file_read_start_pos in kernel/relay.c in the relayfs. This flaw allows a local attacker to crash the system or leak kernel internal information.", "title": "Vulnerability description" }, { "category": "summary", "text": "kernel: out-of-bounds access in relay_file_read", "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-9.0.0.Z.EUS:kernel-rt-0:5.14.0-70.93.1.rt21.165.el9_0.src", "NFV-9.0.0.Z.EUS:kernel-rt-0:5.14.0-70.93.1.rt21.165.el9_0.x86_64", "NFV-9.0.0.Z.EUS:kernel-rt-core-0:5.14.0-70.93.1.rt21.165.el9_0.x86_64", "NFV-9.0.0.Z.EUS:kernel-rt-debug-0:5.14.0-70.93.1.rt21.165.el9_0.x86_64", "NFV-9.0.0.Z.EUS:kernel-rt-debug-core-0:5.14.0-70.93.1.rt21.165.el9_0.x86_64", 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"CWE-416", "name": "Use After Free" }, "discovery_date": "2023-06-06T00:00:00+00:00", "ids": [ { "system_name": "Red Hat Bugzilla ID", "text": "2213260" } ], "notes": [ { "category": "description", "text": "A use-after-free flaw was found in the Netfilter subsystem of the Linux kernel when processing named and anonymous sets in batch requests, which can lead to performing arbitrary reads and writes in kernel memory. This flaw allows a local user with CAP_NET_ADMIN capability to crash or potentially escalate their privileges on the system.", "title": "Vulnerability description" }, { "category": "summary", "text": "kernel: UAF in nftables when nft_set_lookup_global triggered after handling named and anonymous sets in batch requests", "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-9.0.0.Z.EUS:kernel-rt-0:5.14.0-70.93.1.rt21.165.el9_0.src", 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This flaw allows a local attacker to use a failure event to mishandle the reference counter, leading to a local privilege escalation threat.", "title": "Vulnerability description" }, { "category": "summary", "text": "kernel: net/sched: cls_u32 component reference counter leak if tcf_change_indev() fails", "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-9.0.0.Z.EUS:kernel-rt-0:5.14.0-70.93.1.rt21.165.el9_0.src", "NFV-9.0.0.Z.EUS:kernel-rt-0:5.14.0-70.93.1.rt21.165.el9_0.x86_64", "NFV-9.0.0.Z.EUS:kernel-rt-core-0:5.14.0-70.93.1.rt21.165.el9_0.x86_64", "NFV-9.0.0.Z.EUS:kernel-rt-debug-0:5.14.0-70.93.1.rt21.165.el9_0.x86_64", 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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-9.0.0.Z.EUS:kernel-rt-0:5.14.0-70.93.1.rt21.165.el9_0.src", "NFV-9.0.0.Z.EUS:kernel-rt-0:5.14.0-70.93.1.rt21.165.el9_0.x86_64", "NFV-9.0.0.Z.EUS:kernel-rt-core-0:5.14.0-70.93.1.rt21.165.el9_0.x86_64", "NFV-9.0.0.Z.EUS:kernel-rt-debug-0:5.14.0-70.93.1.rt21.165.el9_0.x86_64", "NFV-9.0.0.Z.EUS:kernel-rt-debug-core-0:5.14.0-70.93.1.rt21.165.el9_0.x86_64", "NFV-9.0.0.Z.EUS:kernel-rt-debug-debuginfo-0:5.14.0-70.93.1.rt21.165.el9_0.x86_64", "NFV-9.0.0.Z.EUS:kernel-rt-debug-devel-0:5.14.0-70.93.1.rt21.165.el9_0.x86_64", "NFV-9.0.0.Z.EUS:kernel-rt-debug-kvm-0:5.14.0-70.93.1.rt21.165.el9_0.x86_64", 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"https://access.redhat.com/security/cve/CVE-2023-4459" }, { "category": "external", "summary": "RHBZ#2219268", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2219268" }, { "category": "external", "summary": "https://www.cve.org/CVERecord?id=CVE-2023-4459", "url": "https://www.cve.org/CVERecord?id=CVE-2023-4459" }, { "category": "external", "summary": "https://nvd.nist.gov/vuln/detail/CVE-2023-4459", "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-4459" }, { "category": "external", "summary": "https://github.com/torvalds/linux/commit/edf410cb74dc612fd47ef5be319c5a0bcd6e6ccd", "url": "https://github.com/torvalds/linux/commit/edf410cb74dc612fd47ef5be319c5a0bcd6e6ccd" } ], "release_date": "2022-05-14T00:00:00+00:00", "remediations": [ { "category": "vendor_fix", "date": "2024-03-13T09:11:23+00:00", "details": "For details on how to apply this update, which includes the changes described in this advisory, refer to:\n\nhttps://access.redhat.com/articles/11258\n\nThe system must be 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"system_name": "Red Hat Bugzilla ID", "text": "2237760" } ], "notes": [ { "category": "description", "text": "A use-after-free flaw was found in the Linux kernel\u0027s af_unix component that allows local privilege escalation. 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-9.0.0.Z.EUS:kernel-rt-0:5.14.0-70.93.1.rt21.165.el9_0.src", "NFV-9.0.0.Z.EUS:kernel-rt-0:5.14.0-70.93.1.rt21.165.el9_0.x86_64", "NFV-9.0.0.Z.EUS:kernel-rt-core-0:5.14.0-70.93.1.rt21.165.el9_0.x86_64", "NFV-9.0.0.Z.EUS:kernel-rt-debug-0:5.14.0-70.93.1.rt21.165.el9_0.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-9.0.0.Z.EUS:kernel-rt-0:5.14.0-70.93.1.rt21.165.el9_0.src", "NFV-9.0.0.Z.EUS:kernel-rt-0:5.14.0-70.93.1.rt21.165.el9_0.x86_64", "NFV-9.0.0.Z.EUS:kernel-rt-core-0:5.14.0-70.93.1.rt21.165.el9_0.x86_64", "NFV-9.0.0.Z.EUS:kernel-rt-debug-0:5.14.0-70.93.1.rt21.165.el9_0.x86_64", 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"description", "text": "A race condition was found in the GSM 0710 tty multiplexor in the Linux kernel. This issue occurs when two threads execute the GSMIOC_SETCONF ioctl on the same tty file descriptor with the gsm line discipline enabled, and can lead to a use-after-free problem on a struct gsm_dlci while restarting the gsm mux. This could allow a local unprivileged user to escalate their privileges on the system.", "title": "Vulnerability description" }, { "category": "summary", "text": "kernel: GSM multiplexing race condition leads to privilege escalation", "title": "Vulnerability summary" }, { "category": "other", "text": "This vulnerability is critical because it can be exploited to escalate privileges, directly threatening system security. Despite requiring local access and having a high attack complexity, the potential to severely impact confidentiality, integrity, and availability justifies its \"Important\" rating.", "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-9.0.0.Z.EUS:kernel-rt-0:5.14.0-70.93.1.rt21.165.el9_0.src", "NFV-9.0.0.Z.EUS:kernel-rt-0:5.14.0-70.93.1.rt21.165.el9_0.x86_64", "NFV-9.0.0.Z.EUS:kernel-rt-core-0:5.14.0-70.93.1.rt21.165.el9_0.x86_64", "NFV-9.0.0.Z.EUS:kernel-rt-debug-0:5.14.0-70.93.1.rt21.165.el9_0.x86_64", "NFV-9.0.0.Z.EUS:kernel-rt-debug-core-0:5.14.0-70.93.1.rt21.165.el9_0.x86_64", "NFV-9.0.0.Z.EUS:kernel-rt-debug-debuginfo-0:5.14.0-70.93.1.rt21.165.el9_0.x86_64", 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the Linux kernel\u0027s Internet Group Management Protocol (IGMP) implementation. This vulnerability may enable an attacker to provoke an application crash or potentially escalate privileges locally. By exploiting the race condition, an adversary could disrupt the normal operation of affected systems, leading to service disruption or, in the worst case, unauthorized access to sensitive resources.", "title": "Vulnerability description" }, { "category": "summary", "text": "kernel: use-after-free in IPv4 IGMP", "title": "Vulnerability summary" }, { "category": "other", "text": "This vulnerability poses a moderate severity risk due to its potential to trigger a use-after-free issue when processing IGMPv2 query packets under specific conditions. An attacker could exploit this flaw by continuously sending crafted IGMPv2 query packets to a vulnerable system, causing a reference count underflow in the multicast group list management. Subsequently, this could lead to a use-after-free scenario, potentially resulting in a denial-of-service condition or other adverse effects. While exploitation requires specific configurations and continuous packet transmission, the impact could be significant, warranting attention and remediation to prevent potential exploitation and system instability.", "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-9.0.0.Z.EUS:kernel-rt-0:5.14.0-70.93.1.rt21.165.el9_0.src", "NFV-9.0.0.Z.EUS:kernel-rt-0:5.14.0-70.93.1.rt21.165.el9_0.x86_64", "NFV-9.0.0.Z.EUS:kernel-rt-core-0:5.14.0-70.93.1.rt21.165.el9_0.x86_64", "NFV-9.0.0.Z.EUS:kernel-rt-debug-0:5.14.0-70.93.1.rt21.165.el9_0.x86_64", "NFV-9.0.0.Z.EUS:kernel-rt-debug-core-0:5.14.0-70.93.1.rt21.165.el9_0.x86_64", "NFV-9.0.0.Z.EUS:kernel-rt-debug-debuginfo-0:5.14.0-70.93.1.rt21.165.el9_0.x86_64", 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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-9.0.0.Z.EUS:kernel-rt-0:5.14.0-70.93.1.rt21.165.el9_0.src", "NFV-9.0.0.Z.EUS:kernel-rt-0:5.14.0-70.93.1.rt21.165.el9_0.x86_64", "NFV-9.0.0.Z.EUS:kernel-rt-core-0:5.14.0-70.93.1.rt21.165.el9_0.x86_64", "NFV-9.0.0.Z.EUS:kernel-rt-debug-0:5.14.0-70.93.1.rt21.165.el9_0.x86_64", "NFV-9.0.0.Z.EUS:kernel-rt-debug-core-0:5.14.0-70.93.1.rt21.165.el9_0.x86_64", 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This can be done by a blacklist mechanism which will ensure the driver is not loaded at boot time.\n~~~\nHow do I blacklist a kernel module to prevent it from loading automatically?\nhttps://access.redhat.com/solutions/41278 \n~~~", "product_ids": [ "NFV-9.0.0.Z.EUS:kernel-rt-0:5.14.0-70.93.1.rt21.165.el9_0.src", "NFV-9.0.0.Z.EUS:kernel-rt-0:5.14.0-70.93.1.rt21.165.el9_0.x86_64", "NFV-9.0.0.Z.EUS:kernel-rt-core-0:5.14.0-70.93.1.rt21.165.el9_0.x86_64", "NFV-9.0.0.Z.EUS:kernel-rt-debug-0:5.14.0-70.93.1.rt21.165.el9_0.x86_64", "NFV-9.0.0.Z.EUS:kernel-rt-debug-core-0:5.14.0-70.93.1.rt21.165.el9_0.x86_64", "NFV-9.0.0.Z.EUS:kernel-rt-debug-debuginfo-0:5.14.0-70.93.1.rt21.165.el9_0.x86_64", "NFV-9.0.0.Z.EUS:kernel-rt-debug-devel-0:5.14.0-70.93.1.rt21.165.el9_0.x86_64", "NFV-9.0.0.Z.EUS:kernel-rt-debug-kvm-0:5.14.0-70.93.1.rt21.165.el9_0.x86_64", "NFV-9.0.0.Z.EUS:kernel-rt-debug-modules-0:5.14.0-70.93.1.rt21.165.el9_0.x86_64", 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"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-9.0.0.Z.EUS:kernel-rt-0:5.14.0-70.93.1.rt21.165.el9_0.src", "NFV-9.0.0.Z.EUS:kernel-rt-0:5.14.0-70.93.1.rt21.165.el9_0.x86_64", "NFV-9.0.0.Z.EUS:kernel-rt-core-0:5.14.0-70.93.1.rt21.165.el9_0.x86_64", "NFV-9.0.0.Z.EUS:kernel-rt-debug-0:5.14.0-70.93.1.rt21.165.el9_0.x86_64", "NFV-9.0.0.Z.EUS:kernel-rt-debug-core-0:5.14.0-70.93.1.rt21.165.el9_0.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-9.0.0.Z.EUS:kernel-rt-0:5.14.0-70.93.1.rt21.165.el9_0.src", "NFV-9.0.0.Z.EUS:kernel-rt-0:5.14.0-70.93.1.rt21.165.el9_0.x86_64", "NFV-9.0.0.Z.EUS:kernel-rt-core-0:5.14.0-70.93.1.rt21.165.el9_0.x86_64", "NFV-9.0.0.Z.EUS:kernel-rt-debug-0:5.14.0-70.93.1.rt21.165.el9_0.x86_64", "NFV-9.0.0.Z.EUS:kernel-rt-debug-core-0:5.14.0-70.93.1.rt21.165.el9_0.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.