rhsa-2023_2736
Vulnerability from csaf_redhat
Published
2023-05-16 08:43
Modified
2024-11-06 02:57
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):
* use-after-free caused by l2cap_reassemble_sdu() in net/bluetooth/l2cap_core.c (CVE-2022-3564)
* net/ulp: use-after-free in listening ULP sockets (CVE-2023-0461)
* hw: cpu: AMD CPUs may transiently execute beyond unconditional direct branch (CVE-2021-26341)
* malicious data for FBIOPUT_VSCREENINFO ioctl may cause OOB write memory (CVE-2021-33655)
* when setting font with malicious data by ioctl PIO_FONT, kernel will write memory out of bounds (CVE-2021-33656)
* possible race condition in drivers/tty/tty_buffers.c (CVE-2022-1462)
* use-after-free in ath9k_htc_probe_device() could cause an escalation of privileges (CVE-2022-1679)
* KVM: NULL pointer dereference in kvm_mmu_invpcid_gva (CVE-2022-1789)
* KVM: nVMX: missing IBPB when exiting from nested guest can lead to Spectre v2 attacks (CVE-2022-2196)
* netfilter: nf_conntrack_irc message handling issue (CVE-2022-2663)
* race condition in xfrm_probe_algs can lead to OOB read/write (CVE-2022-3028)
* media: em28xx: initialize refcount before kref_get (CVE-2022-3239)
* race condition in hugetlb_no_page() in mm/hugetlb.c (CVE-2022-3522)
* memory leak in ipv6_renew_options() (CVE-2022-3524)
* data races around icsk->icsk_af_ops in do_ipv6_setsockopt (CVE-2022-3566)
* data races around sk->sk_prot (CVE-2022-3567)
* memory leak in l2cap_recv_acldata of the file net/bluetooth/l2cap_core.c (CVE-2022-3619)
* denial of service in follow_page_pte in mm/gup.c due to poisoned pte entry (CVE-2022-3623)
* use-after-free after failed devlink reload in devlink_param_get (CVE-2022-3625)
* USB-accessible buffer overflow in brcmfmac (CVE-2022-3628)
* Double-free in split_2MB_gtt_entry when function intel_gvt_dma_map_guest_page failed (CVE-2022-3707)
* l2tp: missing lock when clearing sk_user_data can lead to NULL pointer dereference (CVE-2022-4129)
* igmp: use-after-free in ip_check_mc_rcu when opening and closing inet sockets (CVE-2022-20141)
* Executable Space Protection Bypass (CVE-2022-25265)
* Unprivileged users may use PTRACE_SEIZE to set PTRACE_O_SUSPEND_SECCOMP option (CVE-2022-30594)
* unmap_mapping_range() race with munmap() on VM_PFNMAP mappings leads to stale TLB entry (CVE-2022-39188)
* TLB flush operations are mishandled in certain KVM_VCPU_PREEMPTED leading to guest malfunctioning (CVE-2022-39189)
* Report vmalloc UAF in dvb-core/dmxdev (CVE-2022-41218)
* u8 overflow problem in cfg80211_update_notlisted_nontrans() (CVE-2022-41674)
* use-after-free related to leaf anon_vma double reuse (CVE-2022-42703)
* use-after-free in bss_ref_get in net/wireless/scan.c (CVE-2022-42720)
* BSS list corruption in cfg80211_add_nontrans_list in net/wireless/scan.c (CVE-2022-42721)
* Denial of service in beacon protection for P2P-device (CVE-2022-42722)
* memory corruption in usbmon driver (CVE-2022-43750)
* NULL pointer dereference in traffic control subsystem (CVE-2022-47929)
* NULL pointer dereference in rawv6_push_pending_frames (CVE-2023-0394)
* use-after-free caused by invalid pointer hostname in fs/cifs/connect.c (CVE-2023-1195)
* Soft lockup occurred during __page_mapcount (CVE-2023-1582)
* slab-out-of-bounds read vulnerabilities in cbq_classify (CVE-2023-23454)
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.
Additional Changes:
For detailed information on changes in this release, see the Red Hat Enterprise Linux 8.8 Release Notes linked from 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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{
"category": "external",
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{
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{
"category": "external",
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},
{
"category": "external",
"summary": "https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=086ff84617185393a0bbf25830c4f36412a7d3f4",
"url": "https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=086ff84617185393a0bbf25830c4f36412a7d3f4"
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"date": "2023-05-16T08:43:55+00:00",
"details": "Before applying this update, make sure all previously released errata\nrelevant to your system have been applied.\n\nFor details on how to apply this update, refer to:\n\nhttps://access.redhat.com/articles/11258",
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"url": "https://access.redhat.com/security/cve/CVE-2021-33656"
},
{
"category": "external",
"summary": "RHBZ#2108696",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2108696"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2021-33656",
"url": "https://www.cve.org/CVERecord?id=CVE-2021-33656"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2021-33656",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2021-33656"
},
{
"category": "external",
"summary": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/stable-queue.git/tree/releases/5.10.127/vt-drop-old-font-ioctls.patch",
"url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/stable-queue.git/tree/releases/5.10.127/vt-drop-old-font-ioctls.patch"
}
],
"release_date": "2021-01-05T10:00:00+00:00",
"remediations": [
{
"category": "vendor_fix",
"date": "2023-05-16T08:43:55+00:00",
"details": "Before applying this update, make sure all previously released errata\nrelevant to your system have been applied.\n\nFor details on how to apply this update, refer to:\n\nhttps://access.redhat.com/articles/11258",
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"baseScore": 6.8,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
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"details": "Moderate"
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"title": "kernel: when setting font with malicious data by ioctl PIO_FONT, kernel will write memory out of bounds"
},
{
"cve": "CVE-2021-47592",
"cwe": {
"id": "CWE-476",
"name": "NULL Pointer Dereference"
},
"discovery_date": "2024-06-19T00:00:00+00:00",
"ids": [
{
"system_name": "Red Hat Bugzilla ID",
"text": "2293235"
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],
"notes": [
{
"category": "description",
"text": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: stmmac: fix tc flower deletion for VLAN priority Rx steering\n\nTo replicate the issue:-\n\n1) Add 1 flower filter for VLAN Priority based frame steering:-\n$ IFDEVNAME=eth0\n$ tc qdisc add dev $IFDEVNAME ingress\n$ tc qdisc add dev $IFDEVNAME root mqprio num_tc 8 \\\n map 0 1 2 3 4 5 6 7 0 0 0 0 0 0 0 0 \\\n queues 1@0 1@1 1@2 1@3 1@4 1@5 1@6 1@7 hw 0\n$ tc filter add dev $IFDEVNAME parent ffff: protocol 802.1Q \\\n flower vlan_prio 0 hw_tc 0\n\n2) Get the \u0027pref\u0027 id\n$ tc filter show dev $IFDEVNAME ingress\n\n3) Delete a specific tc flower record (say pref 49151)\n$ tc filter del dev $IFDEVNAME parent ffff: pref 49151\n\nFrom dmesg, we will observe kernel NULL pointer ooops\n\n[ 197.170464] BUG: kernel NULL pointer dereference, address: 0000000000000000\n[ 197.171367] #PF: supervisor read access in kernel mode\n[ 197.171367] #PF: error_code(0x0000) - not-present page\n[ 197.171367] PGD 0 P4D 0\n[ 197.171367] Oops: 0000 [#1] PREEMPT SMP NOPTI\n\n\u003csnip\u003e\n\n[ 197.171367] RIP: 0010:tc_setup_cls+0x20b/0x4a0 [stmmac]\n\n\u003csnip\u003e\n\n[ 197.171367] Call Trace:\n[ 197.171367] \u003cTASK\u003e\n[ 197.171367] ? __stmmac_disable_all_queues+0xa8/0xe0 [stmmac]\n[ 197.171367] stmmac_setup_tc_block_cb+0x70/0x110 [stmmac]\n[ 197.171367] tc_setup_cb_destroy+0xb3/0x180\n[ 197.171367] fl_hw_destroy_filter+0x94/0xc0 [cls_flower]\n\nThe above issue is due to previous incorrect implementation of\ntc_del_vlan_flow(), shown below, that uses flow_cls_offload_flow_rule()\nto get struct flow_rule *rule which is no longer valid for tc filter\ndelete operation.\n\n struct flow_rule *rule = flow_cls_offload_flow_rule(cls);\n struct flow_dissector *dissector = rule-\u003ematch.dissector;\n\nSo, to ensure tc_del_vlan_flow() deletes the right VLAN cls record for\nearlier configured RX queue (configured by hw_tc) in tc_add_vlan_flow(),\nthis patch introduces stmmac_rfs_entry as driver-side flow_cls_offload\nrecord for \u0027RX frame steering\u0027 tc flower, currently used for VLAN\npriority. The implementation has taken consideration for future extension\nto include other type RX frame steering such as EtherType based.\n\nv2:\n - Clean up overly extensive backtrace and rewrite git message to better\n explain the kernel NULL pointer issue.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "kernel: net: stmmac: fix tc flower deletion for VLAN priority Rx steering",
"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"
}
],
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{
"category": "external",
"summary": "RHBZ#2293235",
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},
{
"category": "external",
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"url": "https://nvd.nist.gov/vuln/detail/CVE-2021-47592"
},
{
"category": "external",
"summary": "https://lore.kernel.org/linux-cve-announce/2024061919-CVE-2021-47592-7ca6@gregkh/T",
"url": "https://lore.kernel.org/linux-cve-announce/2024061919-CVE-2021-47592-7ca6@gregkh/T"
}
],
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{
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"date": "2023-05-16T08:43:55+00:00",
"details": "Before applying this update, make sure all previously released errata\nrelevant to your system have been applied.\n\nFor details on how to apply this update, refer to:\n\nhttps://access.redhat.com/articles/11258",
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"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.",
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},
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"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.",
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"title": "Vulnerability description"
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{
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"title": "Vulnerability description"
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{
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"text": "kernel: memory leak in ipv6_renew_options()",
"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.",
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{
"category": "external",
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{
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},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2022-3524",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-3524"
},
{
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"summary": "https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=3c52c6bb831f6335c176a0fc7214e26f43adbd11",
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"date": "2023-05-16T08:43:55+00:00",
"details": "Before applying this update, make sure all previously released errata\nrelevant to your system have been applied.\n\nFor details on how to apply this update, refer to:\n\nhttps://access.redhat.com/articles/11258",
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{
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"name": "Use After Free"
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{
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"title": "Vulnerability description"
},
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"title": "Vulnerability summary"
},
{
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"text": "This issue is rated between Moderate and Important (similar to the CVE-2022-45934) because of no known attack, and the attack would be complex. Anyway, consider this CVE-2022-3564 as Important because the use-after-free can potentially lead to privilege escalation or a potential remote system crash (and currently, a read after-free that in most cases would not lead to a remote system crash).",
"title": "Statement"
},
{
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"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.",
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{
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"summary": "Canonical URL",
"url": "https://access.redhat.com/security/cve/CVE-2022-3564"
},
{
"category": "external",
"summary": "RHBZ#2150999",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2150999"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2022-3564",
"url": "https://www.cve.org/CVERecord?id=CVE-2022-3564"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2022-3564",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-3564"
},
{
"category": "external",
"summary": "https://git.kernel.org/pub/scm/linux/kernel/git/bluetooth/bluetooth-next.git/commit/?id=89f9f3cb86b1c63badaf392a83dd661d56cc50b1",
"url": "https://git.kernel.org/pub/scm/linux/kernel/git/bluetooth/bluetooth-next.git/commit/?id=89f9f3cb86b1c63badaf392a83dd661d56cc50b1"
}
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"date": "2023-05-16T08:43:55+00:00",
"details": "Before applying this update, make sure all previously released errata\nrelevant to your system have been applied.\n\nFor details on how to apply this update, refer to:\n\nhttps://access.redhat.com/articles/11258",
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"title": "kernel: use-after-free caused by l2cap_reassemble_sdu() in net/bluetooth/l2cap_core.c"
},
{
"cve": "CVE-2022-3566",
"cwe": {
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"name": "Race Condition within a Thread"
},
"discovery_date": "2022-11-18T00:00:00+00:00",
"ids": [
{
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"text": "2143893"
}
],
"notes": [
{
"category": "description",
"text": "A vulnerability was found in the tcp subsystem in the Linux Kernel, due to a data race around icsk-\u003eicsk_af_ops. This issue could allow an attacker to leak internal kernel information.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "kernel: data races around icsk-\u003eicsk_af_ops in do_ipv6_setsockopt",
"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"
}
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{
"category": "self",
"summary": "Canonical URL",
"url": "https://access.redhat.com/security/cve/CVE-2022-3566"
},
{
"category": "external",
"summary": "RHBZ#2143893",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2143893"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2022-3566",
"url": "https://www.cve.org/CVERecord?id=CVE-2022-3566"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2022-3566",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-3566"
},
{
"category": "external",
"summary": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=f49cd2f4d6170d27a2c61f1fecb03d8a70c91f57",
"url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=f49cd2f4d6170d27a2c61f1fecb03d8a70c91f57"
}
],
"release_date": "2022-10-06T06:30:00+00:00",
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"category": "vendor_fix",
"date": "2023-05-16T08:43:55+00:00",
"details": "Before applying this update, make sure all previously released errata\nrelevant to your system have been applied.\n\nFor details on how to apply this update, refer to:\n\nhttps://access.redhat.com/articles/11258",
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"title": "kernel: data races around icsk-\u003eicsk_af_ops in do_ipv6_setsockopt"
},
{
"cve": "CVE-2022-3567",
"cwe": {
"id": "CWE-421",
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"ids": [
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{
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"text": "A data race problem was found in sk-\u003esk_prot in the network subsystem in ipv6 in the Linux kernel. This issue occurs while some functions access critical data, leading to a denial of service.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "kernel: data races around sk-\u003esk_prot",
"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"
}
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{
"category": "self",
"summary": "Canonical URL",
"url": "https://access.redhat.com/security/cve/CVE-2022-3567"
},
{
"category": "external",
"summary": "RHBZ#2143943",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2143943"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2022-3567",
"url": "https://www.cve.org/CVERecord?id=CVE-2022-3567"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2022-3567",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-3567"
},
{
"category": "external",
"summary": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=364f997b5cfe1db0d63a390fe7c801fa2b3115f6",
"url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=364f997b5cfe1db0d63a390fe7c801fa2b3115f6"
}
],
"release_date": "2022-10-06T00:00:00+00:00",
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{
"category": "vendor_fix",
"date": "2023-05-16T08:43:55+00:00",
"details": "Before applying this update, make sure all previously released errata\nrelevant to your system have been applied.\n\nFor details on how to apply this update, refer to:\n\nhttps://access.redhat.com/articles/11258",
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{
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{
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"text": "A memory leak flaw was found in the Linux kernel\u2019s L2CAP bluetooth functionality. This issue occurs when a user generates malicious packets, triggering the l2cap_recv_acldata function. This flaw allows a local or bluetooth connection user to potentially crash the system.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "kernel: memory leak in l2cap_recv_acldata of the file net/bluetooth/l2cap_core.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"
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"text": "A flaw was found in the Linux kernel\u0027s Layer 2 Tunneling Protocol (L2TP). A missing lock when clearing sk_user_data can lead to a race condition and NULL pointer dereference. A local user could use this flaw to potentially crash the system causing a denial of service.",
"title": "Vulnerability description"
},
{
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"text": "kernel: l2tp: missing lock when clearing sk_user_data can lead to NULL pointer dereference",
"title": "Vulnerability summary"
},
{
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"details": "Before applying this update, make sure all previously released errata\nrelevant to your system have been applied.\n\nFor details on how to apply this update, refer to:\n\nhttps://access.redhat.com/articles/11258",
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"title": "Vulnerability description"
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{
"category": "summary",
"text": "kernel: unmap_mapping_range() race with munmap() on VM_PFNMAP mappings leads to stale TLB entry",
"title": "Vulnerability summary"
},
{
"category": "other",
"text": "This issue only occurs in situations with VM_PFNMAP virtual memory areas (VMAs).",
"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"
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"title": "Vulnerability description"
},
{
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"title": "Vulnerability summary"
},
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"category": "other",
"text": "With the current usecase, attacker need a root privileges to exploit this flaw, however there may have ways to defeat this either, but in both cases it seems that Attack Complexity is high (AC:H)",
"title": "Statement"
},
{
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"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.",
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"text": "Keeping this issue Moderate because the impact is limited: only when the user uses the dvb-core module and removes the USB device triggers the attack. This kind of race condition is hard to trigger and requires several preconditions.",
"title": "Statement"
},
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"title": "Vulnerability description"
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},
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"title": "Vulnerability description"
},
{
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"text": "kernel: use-after-free related to leaf anon_vma double reuse",
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},
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"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.",
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},
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"title": "kernel: use-after-free in bss_ref_get in net/wireless/scan.c"
},
{
"cve": "CVE-2022-42721",
"cwe": {
"id": "CWE-20",
"name": "Improper Input Validation"
},
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"ids": [
{
"system_name": "Red Hat Bugzilla ID",
"text": "2134506"
}
],
"notes": [
{
"category": "description",
"text": "A list corruption flaw was found in cfg80211_add_nontrans_list in the net/wireless/scan.c function in the Linux kernel. This flaw could lead to a denial of service.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "kernel: BSS list corruption in cfg80211_add_nontrans_list in net/wireless/scan.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"
}
],
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{
"category": "self",
"summary": "Canonical URL",
"url": "https://access.redhat.com/security/cve/CVE-2022-42721"
},
{
"category": "external",
"summary": "RHBZ#2134506",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2134506"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2022-42721",
"url": "https://www.cve.org/CVERecord?id=CVE-2022-42721"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2022-42721",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-42721"
},
{
"category": "external",
"summary": "https://www.openwall.com/lists/oss-security/2022/10/13/2",
"url": "https://www.openwall.com/lists/oss-security/2022/10/13/2"
}
],
"release_date": "2022-10-13T10:00:00+00:00",
"remediations": [
{
"category": "vendor_fix",
"date": "2023-05-16T08:43:55+00:00",
"details": "Before applying this update, make sure all previously released errata\nrelevant to your system have been applied.\n\nFor details on how to apply this update, refer to:\n\nhttps://access.redhat.com/articles/11258",
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"attackVector": "LOCAL",
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"baseScore": 5.5,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
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"title": "kernel: BSS list corruption in cfg80211_add_nontrans_list in net/wireless/scan.c"
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{
"cve": "CVE-2022-42722",
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"id": "CWE-705",
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"text": "2134517"
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],
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{
"category": "description",
"text": "A flaw was found in P2P-Device in wifi in ieee80211_rx_h_decrypt in net/mac80211/rx.c in the Linux kernel, leading to a denial of service.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "kernel: Denial of service in beacon protection for P2P-device",
"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"
}
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"category": "self",
"summary": "Canonical URL",
"url": "https://access.redhat.com/security/cve/CVE-2022-42722"
},
{
"category": "external",
"summary": "RHBZ#2134517",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2134517"
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{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2022-42722",
"url": "https://www.cve.org/CVERecord?id=CVE-2022-42722"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2022-42722",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-42722"
},
{
"category": "external",
"summary": "https://www.openwall.com/lists/oss-security/2022/10/13/2",
"url": "https://www.openwall.com/lists/oss-security/2022/10/13/2"
}
],
"release_date": "2022-10-13T10:00:00+00:00",
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{
"category": "vendor_fix",
"date": "2023-05-16T08:43:55+00:00",
"details": "Before applying this update, make sure all previously released errata\nrelevant to your system have been applied.\n\nFor details on how to apply this update, refer to:\n\nhttps://access.redhat.com/articles/11258",
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"confidentialityImpact": "NONE",
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"scope": "UNCHANGED",
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{
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"details": "Before applying this update, make sure all previously released errata\nrelevant to your system have been applied.\n\nFor details on how to apply this update, refer to:\n\nhttps://access.redhat.com/articles/11258",
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},
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"title": "Vulnerability description"
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"title": "Vulnerability summary"
},
{
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"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.",
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"title": "Vulnerability description"
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"title": "Vulnerability description"
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"title": "Vulnerability summary"
},
{
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"text": "Red Hat Enterprise Linux 6 and 7 are not affected by this flaw as they did not include the `virtio_gpu_object_shmem_init` function, introduced upstream in commit 2f2aa13 (\"drm/virtio: move virtio_gpu_mem_entry initialization to new function\").",
"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.",
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{
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"date": "2023-05-16T08:43:55+00:00",
"details": "Before applying this update, make sure all previously released errata\nrelevant to your system have been applied.\n\nFor details on how to apply this update, refer to:\n\nhttps://access.redhat.com/articles/11258",
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"references": [
{
"category": "self",
"summary": "Canonical URL",
"url": "https://access.redhat.com/security/cve/CVE-2023-23454"
},
{
"category": "external",
"summary": "RHBZ#2168297",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2168297"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2023-23454",
"url": "https://www.cve.org/CVERecord?id=CVE-2023-23454"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2023-23454",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-23454"
},
{
"category": "external",
"summary": "https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=caa4b35b4317d5147b3ab0fbdc9c075c7d2e9c12",
"url": "https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=caa4b35b4317d5147b3ab0fbdc9c075c7d2e9c12"
}
],
"release_date": "2023-01-01T17:00:00+00:00",
"remediations": [
{
"category": "vendor_fix",
"date": "2023-05-16T08:43:55+00:00",
"details": "Before applying this update, make sure all previously released errata\nrelevant to your system have been applied.\n\nFor details on how to apply this update, refer to:\n\nhttps://access.redhat.com/articles/11258",
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"category": "none"
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"url": "https://access.redhat.com/errata/RHSA-2023:2736"
},
{
"category": "workaround",
"details": "The mitigation is to disable unprivileged 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```\nIt is also possible to prevent the affected code from being loaded by blacklisting the `cbq` kernel module. For instructions on how to blacklist a kernel module, please see https://access.redhat.com/solutions/41278.",
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"attackVector": "LOCAL",
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"baseScore": 4.2,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "HIGH",
"scope": "UNCHANGED",
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"vectorString": "CVSS:3.1/AV:L/AC:L/PR:H/UI:R/S:U/C:N/I:N/A:H",
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"details": "Moderate"
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],
"title": "kernel: slab-out-of-bounds read vulnerabilities in cbq_classify"
}
]
}
Loading...
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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.