rhsa-2022_7444
Vulnerability from csaf_redhat
Published
2022-11-08 09:25
Modified
2024-11-06 01:55
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 Moderate. 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):
* off-path attacker may inject data or terminate victim's TCP session (CVE-2020-36516)
* Race condition in VT_RESIZEX ioctl when vc_cons[i].d is already NULL leading to NULL pointer dereference (CVE-2020-36558)
* use-after-free vulnerability in function sco_sock_sendmsg() (CVE-2021-3640)
* Memory leak for large arguments in video_usercopy function in drivers/media/v4l2-core/v4l2-ioctl.c (CVE-2021-30002)
* smb2_ioctl_query_info NULL Pointer Dereference (CVE-2022-0168)
* NULL pointer dereference in udf_expand_file_adinicbdue() during writeback (CVE-2022-0617)
* swiotlb information leak with DMA_FROM_DEVICE (CVE-2022-0854)
* Uninitialized registers on stack in nft_do_chain can cause kernel pointer leakage to UM (CVE-2022-1016)
* Race condition in snd_pcm_hw_free leading to use-after-free (CVE-2022-1048)
* use-after-free in tc_new_tfilter() in net/sched/cls_api.c (CVE-2022-1055)
* use-after-free and memory errors in ext4 when mounting and operating on a corrupted image (CVE-2022-1184)
* NULL pointer dereference in x86_emulate_insn may lead to DoS (CVE-2022-1852)
* buffer overflow in nft_set_desc_concat_parse() (CVE-2022-2078)
* nf_tables cross-table potential use-after-free may lead to local privilege escalation (CVE-2022-2586)
* openvswitch: integer underflow leads to out-of-bounds write in reserve_sfa_size() (CVE-2022-2639)
* use-after-free when psi trigger is destroyed while being polled (CVE-2022-2938)
* net/packet: slab-out-of-bounds access in packet_recvmsg() (CVE-2022-20368)
* possible to use the debugger to write zero into a location of choice (CVE-2022-21499)
* Post-barrier Return Stack Buffer Predictions (CVE-2022-26373)
* Memory leak in drivers/hid/hid-elo.c (CVE-2022-27950)
* Double free in ems_usb_start_xmit in drivers/net/can/usb/ems_usb.c (CVE-2022-28390)
* Use after free in SUNRPC subsystem (CVE-2022-28893)
* use-after-free due to improper update of reference count in net/sched/cls_u32.c (CVE-2022-29581)
* DoS in nfqnl_mangle in net/netfilter/nfnetlink_queue.c (CVE-2022-36946)
* nfs_atomic_open() returns uninitialized data instead of ENOTDIR (CVE-2022-24448)
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 8.7 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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"text": "A TCP/IP packet spoofing attack flaw was found in the Linux kernel\u2019s TCP/IP protocol, where a Man-in-the-Middle Attack (MITM) performs an IP fragmentation attack and an IPID collision. This flaw allows a remote user to pretend to be the sender of the TCP/IP packet for an existing TCP/IP session.",
"title": "Vulnerability description"
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{
"category": "summary",
"text": "kernel: off-path attacker may inject data or terminate victim\u0027s TCP session",
"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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{
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},
{
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],
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"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 rebooted for this update to take effect.",
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{
"cvss_v3": {
"attackComplexity": "LOW",
"attackVector": "LOCAL",
"availabilityImpact": "HIGH",
"baseScore": 6.2,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"version": "3.1"
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"category": "impact",
"details": "Moderate"
}
],
"title": "kernel: memory leak for large arguments in video_usercopy function in drivers/media/v4l2-core/v4l2-ioctl.c"
},
{
"cve": "CVE-2021-47099",
"cwe": {
"id": "CWE-20",
"name": "Improper Input Validation"
},
"discovery_date": "2024-03-04T00:00:00+00:00",
"ids": [
{
"system_name": "Red Hat Bugzilla ID",
"text": "2267919"
}
],
"notes": [
{
"category": "description",
"text": "In the Linux kernel, the following vulnerability has been resolved:\n\nveth: ensure skb entering GRO are not cloned.\n\nAfter commit d3256efd8e8b (\"veth: allow enabling NAPI even without XDP\"),\nif GRO is enabled on a veth device and TSO is disabled on the peer\ndevice, TCP skbs will go through the NAPI callback. If there is no XDP\nprogram attached, the veth code does not perform any share check, and\nshared/cloned skbs could enter the GRO engine.\n\nIgnat reported a BUG triggered later-on due to the above condition:\n\n[ 53.970529][ C1] kernel BUG at net/core/skbuff.c:3574!\n[ 53.981755][ C1] invalid opcode: 0000 [#1] PREEMPT SMP KASAN PTI\n[ 53.982634][ C1] CPU: 1 PID: 19 Comm: ksoftirqd/1 Not tainted 5.16.0-rc5+ #25\n[ 53.982634][ C1] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 0.0.0 02/06/2015\n[ 53.982634][ C1] RIP: 0010:skb_shift+0x13ef/0x23b0\n[ 53.982634][ C1] Code: ea 03 0f b6 04 02 48 89 fa 83 e2 07 38 d0\n7f 08 84 c0 0f 85 41 0c 00 00 41 80 7f 02 00 4d 8d b5 d0 00 00 00 0f\n85 74 f5 ff ff \u003c0f\u003e 0b 4d 8d 77 20 be 04 00 00 00 4c 89 44 24 78 4c 89\nf7 4c 89 8c\n[ 53.982634][ C1] RSP: 0018:ffff8881008f7008 EFLAGS: 00010246\n[ 53.982634][ C1] RAX: 0000000000000000 RBX: ffff8881180b4c80 RCX: 0000000000000000\n[ 53.982634][ C1] RDX: 0000000000000002 RSI: ffff8881180b4d3c RDI: ffff88810bc9cac2\n[ 53.982634][ C1] RBP: ffff8881008f70b8 R08: ffff8881180b4cf4 R09: ffff8881180b4cf0\n[ 53.982634][ C1] R10: ffffed1022999e5c R11: 0000000000000002 R12: 0000000000000590\n[ 53.982634][ C1] R13: ffff88810f940c80 R14: ffff88810f940d50 R15: ffff88810bc9cac0\n[ 53.982634][ C1] FS: 0000000000000000(0000) GS:ffff888235880000(0000) knlGS:0000000000000000\n[ 53.982634][ C1] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033\n[ 53.982634][ C1] CR2: 00007ff5f9b86680 CR3: 0000000108ce8004 CR4: 0000000000170ee0\n[ 53.982634][ C1] Call Trace:\n[ 53.982634][ C1] \u003cTASK\u003e\n[ 53.982634][ C1] tcp_sacktag_walk+0xaba/0x18e0\n[ 53.982634][ C1] tcp_sacktag_write_queue+0xe7b/0x3460\n[ 53.982634][ C1] tcp_ack+0x2666/0x54b0\n[ 53.982634][ C1] tcp_rcv_established+0x4d9/0x20f0\n[ 53.982634][ C1] tcp_v4_do_rcv+0x551/0x810\n[ 53.982634][ C1] tcp_v4_rcv+0x22ed/0x2ed0\n[ 53.982634][ C1] ip_protocol_deliver_rcu+0x96/0xaf0\n[ 53.982634][ C1] ip_local_deliver_finish+0x1e0/0x2f0\n[ 53.982634][ C1] ip_sublist_rcv_finish+0x211/0x440\n[ 53.982634][ C1] ip_list_rcv_finish.constprop.0+0x424/0x660\n[ 53.982634][ C1] ip_list_rcv+0x2c8/0x410\n[ 53.982634][ C1] __netif_receive_skb_list_core+0x65c/0x910\n[ 53.982634][ C1] netif_receive_skb_list_internal+0x5f9/0xcb0\n[ 53.982634][ C1] napi_complete_done+0x188/0x6e0\n[ 53.982634][ C1] gro_cell_poll+0x10c/0x1d0\n[ 53.982634][ C1] __napi_poll+0xa1/0x530\n[ 53.982634][ C1] net_rx_action+0x567/0x1270\n[ 53.982634][ C1] __do_softirq+0x28a/0x9ba\n[ 53.982634][ C1] run_ksoftirqd+0x32/0x60\n[ 53.982634][ C1] smpboot_thread_fn+0x559/0x8c0\n[ 53.982634][ C1] kthread+0x3b9/0x490\n[ 53.982634][ C1] ret_from_fork+0x22/0x30\n[ 53.982634][ C1] \u003c/TASK\u003e\n\nAddress the issue by skipping the GRO stage for shared or cloned skbs.\nTo reduce the chance of OoO, try to unclone the skbs before giving up.\n\nv1 -\u003e v2:\n - use avoid skb_copy and fallback to netif_receive_skb - Eric",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "kernel: veth: ensure skb entering GRO are not cloned.",
"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": {
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"references": [
{
"category": "self",
"summary": "Canonical URL",
"url": "https://access.redhat.com/security/cve/CVE-2021-47099"
},
{
"category": "external",
"summary": "RHBZ#2267919",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2267919"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2021-47099",
"url": "https://www.cve.org/CVERecord?id=CVE-2021-47099"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2021-47099",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2021-47099"
},
{
"category": "external",
"summary": "https://lore.kernel.org/linux-cve-announce/2024030415-CVE-2021-47099-3127@gregkh/T",
"url": "https://lore.kernel.org/linux-cve-announce/2024030415-CVE-2021-47099-3127@gregkh/T"
}
],
"release_date": "2024-03-04T00:00:00+00:00",
"remediations": [
{
"category": "vendor_fix",
"date": "2022-11-08T09:25:15+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 rebooted for this update to take effect.",
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{
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"attackComplexity": "LOW",
"attackVector": "LOCAL",
"availabilityImpact": "HIGH",
"baseScore": 6.0,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "HIGH",
"integrityImpact": "NONE",
"privilegesRequired": "HIGH",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:H",
"version": "3.1"
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"title": "kernel: veth: ensure skb entering GRO are not cloned."
},
{
"cve": "CVE-2021-47580",
"cwe": {
"id": "CWE-125",
"name": "Out-of-bounds Read"
},
"discovery_date": "2024-06-19T00:00:00+00:00",
"ids": [
{
"system_name": "Red Hat Bugzilla ID",
"text": "2293249"
}
],
"notes": [
{
"category": "description",
"text": "In the Linux kernel, the following vulnerability has been resolved:\n\nscsi: scsi_debug: Fix type in min_t to avoid stack OOB\n\nChange min_t() to use type \"u32\" instead of type \"int\" to avoid stack out\nof bounds. With min_t() type \"int\" the values get sign extended and the\nlarger value gets used causing stack out of bounds.\n\nBUG: KASAN: stack-out-of-bounds in memcpy include/linux/fortify-string.h:191 [inline]\nBUG: KASAN: stack-out-of-bounds in sg_copy_buffer+0x1de/0x240 lib/scatterlist.c:976\nRead of size 127 at addr ffff888072607128 by task syz-executor.7/18707\n\nCPU: 1 PID: 18707 Comm: syz-executor.7 Not tainted 5.15.0-syzk #1\nHardware name: Red Hat KVM, BIOS 1.13.0-2\nCall Trace:\n __dump_stack lib/dump_stack.c:88 [inline]\n dump_stack_lvl+0x89/0xb5 lib/dump_stack.c:106\n print_address_description.constprop.9+0x28/0x160 mm/kasan/report.c:256\n __kasan_report mm/kasan/report.c:442 [inline]\n kasan_report.cold.14+0x7d/0x117 mm/kasan/report.c:459\n check_region_inline mm/kasan/generic.c:183 [inline]\n kasan_check_range+0x1a3/0x210 mm/kasan/generic.c:189\n memcpy+0x23/0x60 mm/kasan/shadow.c:65\n memcpy include/linux/fortify-string.h:191 [inline]\n sg_copy_buffer+0x1de/0x240 lib/scatterlist.c:976\n sg_copy_from_buffer+0x33/0x40 lib/scatterlist.c:1000\n fill_from_dev_buffer.part.34+0x82/0x130 drivers/scsi/scsi_debug.c:1162\n fill_from_dev_buffer drivers/scsi/scsi_debug.c:1888 [inline]\n resp_readcap16+0x365/0x3b0 drivers/scsi/scsi_debug.c:1887\n schedule_resp+0x4d8/0x1a70 drivers/scsi/scsi_debug.c:5478\n scsi_debug_queuecommand+0x8c9/0x1ec0 drivers/scsi/scsi_debug.c:7533\n scsi_dispatch_cmd drivers/scsi/scsi_lib.c:1520 [inline]\n scsi_queue_rq+0x16b0/0x2d40 drivers/scsi/scsi_lib.c:1699\n blk_mq_dispatch_rq_list+0xb9b/0x2700 block/blk-mq.c:1639\n __blk_mq_sched_dispatch_requests+0x28f/0x590 block/blk-mq-sched.c:325\n blk_mq_sched_dispatch_requests+0x105/0x190 block/blk-mq-sched.c:358\n __blk_mq_run_hw_queue+0xe5/0x150 block/blk-mq.c:1761\n __blk_mq_delay_run_hw_queue+0x4f8/0x5c0 block/blk-mq.c:1838\n blk_mq_run_hw_queue+0x18d/0x350 block/blk-mq.c:1891\n blk_mq_sched_insert_request+0x3db/0x4e0 block/blk-mq-sched.c:474\n blk_execute_rq_nowait+0x16b/0x1c0 block/blk-exec.c:62\n sg_common_write.isra.18+0xeb3/0x2000 drivers/scsi/sg.c:836\n sg_new_write.isra.19+0x570/0x8c0 drivers/scsi/sg.c:774\n sg_ioctl_common+0x14d6/0x2710 drivers/scsi/sg.c:939\n sg_ioctl+0xa2/0x180 drivers/scsi/sg.c:1165\n vfs_ioctl fs/ioctl.c:51 [inline]\n __do_sys_ioctl fs/ioctl.c:874 [inline]\n __se_sys_ioctl fs/ioctl.c:860 [inline]\n __x64_sys_ioctl+0x19d/0x220 fs/ioctl.c:860\n do_syscall_x64 arch/x86/entry/common.c:50 [inline]\n do_syscall_64+0x3a/0x80 arch/x86/entry/common.c:80\n entry_SYSCALL_64_after_hwframe+0x44/0xae",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "kernel: scsi: scsi_debug: Fix type in min_t to avoid stack OOB",
"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": {
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"references": [
{
"category": "self",
"summary": "Canonical URL",
"url": "https://access.redhat.com/security/cve/CVE-2021-47580"
},
{
"category": "external",
"summary": "RHBZ#2293249",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2293249"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2021-47580",
"url": "https://www.cve.org/CVERecord?id=CVE-2021-47580"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2021-47580",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2021-47580"
},
{
"category": "external",
"summary": "https://lore.kernel.org/linux-cve-announce/2024061916-CVE-2021-47580-eac9@gregkh/T",
"url": "https://lore.kernel.org/linux-cve-announce/2024061916-CVE-2021-47580-eac9@gregkh/T"
}
],
"release_date": "2024-06-19T00:00:00+00:00",
"remediations": [
{
"category": "vendor_fix",
"date": "2022-11-08T09:25:15+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 rebooted for this update to take effect.",
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{
"cve": "CVE-2022-0617",
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"id": "CWE-476",
"name": "NULL Pointer Dereference"
},
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}
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{
"category": "description",
"text": "A NULL pointer dereference was found in the Linux kernel\u2019s UDF file system functionality in the way the user triggers the udf_file_write_iter function for a malicious UDF image. This flaw allows a local user to crash the system.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "kernel: NULL pointer dereference in udf_expand_file_adinicbdue() during writeback",
"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#2053632",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2053632"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2022-0617",
"url": "https://www.cve.org/CVERecord?id=CVE-2022-0617"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2022-0617",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-0617"
},
{
"category": "external",
"summary": "https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=7fc3b7c2981bbd1047916ade327beccb90994eee",
"url": "https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=7fc3b7c2981bbd1047916ade327beccb90994eee"
},
{
"category": "external",
"summary": "https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=ea8569194b43f0f01f0a84c689388542c7254a1f",
"url": "https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=ea8569194b43f0f01f0a84c689388542c7254a1f"
},
{
"category": "external",
"summary": "https://lore.kernel.org/lkml/20220114172329.ygzry5rlz64ua2nr@quack3.lan/T/",
"url": "https://lore.kernel.org/lkml/20220114172329.ygzry5rlz64ua2nr@quack3.lan/T/"
}
],
"release_date": "2022-01-24T00:00:00+00:00",
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{
"category": "vendor_fix",
"date": "2022-11-08T09:25:15+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 rebooted for this update to take effect.",
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"attackVector": "LOCAL",
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"baseScore": 4.7,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H",
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],
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{
"category": "description",
"text": "A memory leak flaw was found in the Linux kernel\u2019s DMA subsystem, in the way a user calls DMA_FROM_DEVICE. This flaw allows a local user to read random memory from the kernel space.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "kernel: swiotlb information leak with DMA_FROM_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": "external",
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"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2058395"
},
{
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},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2022-0854",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-0854"
},
{
"category": "external",
"summary": "https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/kernel/dma/swiotlb.c?h=v5.17-rc8\u0026id=aa6f8dcbab473f3a3c7454b74caa46d36cdc5d13",
"url": "https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/kernel/dma/swiotlb.c?h=v5.17-rc8\u0026id=aa6f8dcbab473f3a3c7454b74caa46d36cdc5d13"
}
],
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{
"category": "vendor_fix",
"date": "2022-11-08T09:25:15+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 rebooted for this update to take effect.",
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"confidentialityImpact": "HIGH",
"integrityImpact": "NONE",
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{
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"text": "A flaw was found in the Linux kernel in net/netfilter/nf_tables_core.c:nft_do_chain, which can cause a use-after-free. This issue needs to handle \u0027return\u0027 with proper preconditions, as it can lead to a kernel information leak problem caused by a local, unprivileged attacker.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "kernel: uninitialized registers on stack in nft_do_chain can cause kernel pointer leakage to UM",
"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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{
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{
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},
{
"category": "external",
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},
{
"category": "external",
"summary": "http://blog.dbouman.nl/2022/04/02/How-The-Tables-Have-Turned-CVE-2022-1015-1016/",
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},
{
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{
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"date": "2022-11-08T09:25:15+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 rebooted for this update to take effect.",
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"title": "kernel: uninitialized registers on stack in nft_do_chain can cause kernel pointer leakage to UM"
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{
"category": "description",
"text": "A use-after-free flaw was found in the Linux kernel\u2019s sound subsystem in the way a user triggers concurrent calls of PCM hw_params. The hw_free ioctls or similar race condition happens inside ALSA PCM for other ioctls. This flaw allows a local user to crash or potentially escalate their privileges on the system.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "kernel: race condition in snd_pcm_hw_free leading to use-after-free",
"title": "Vulnerability summary"
},
{
"category": "other",
"text": "Keeping the rating as Moderate, because this issue is hard to trigger and requires some permissions for accessing the sound card and only exists if a specific model of the sound card such as Intel 82801 or similar. The known reproducer works only for systems where the /dev/snd/pcmC0D1c device exists.",
"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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{
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"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 rebooted for this update to take effect.",
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{
"cve": "CVE-2022-1055",
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"id": "CWE-416",
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},
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"title": "Vulnerability description"
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{
"category": "self",
"summary": "Canonical URL",
"url": "https://access.redhat.com/security/cve/CVE-2022-1055"
},
{
"category": "external",
"summary": "RHBZ#2070220",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2070220"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2022-1055",
"url": "https://www.cve.org/CVERecord?id=CVE-2022-1055"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2022-1055",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-1055"
},
{
"category": "external",
"summary": "https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=04c2a47ffb13c29778e2a14e414ad4cb5a5db4b5",
"url": "https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=04c2a47ffb13c29778e2a14e414ad4cb5a5db4b5"
},
{
"category": "external",
"summary": "https://syzkaller.appspot.com/bug?id=2212474c958978ab86525fe6832ac8102c309ffc",
"url": "https://syzkaller.appspot.com/bug?id=2212474c958978ab86525fe6832ac8102c309ffc"
}
],
"release_date": "2022-01-31T00:00:00+00:00",
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{
"category": "vendor_fix",
"date": "2022-11-08T09:25:15+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 rebooted for this update to take effect.",
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],
"title": "kernel: use-after-free in tc_new_tfilter() in net/sched/cls_api.c"
},
{
"acknowledgments": [
{
"names": [
"Qiuhao Li"
],
"organization": "Harbin Institute of Technology"
},
{
"names": [
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"Yongkang Jia"
],
"organization": "Zhejiang University"
}
],
"cve": "CVE-2022-1158",
"cwe": {
"id": "CWE-416",
"name": "Use After Free"
},
"discovery_date": "2022-03-29T00:00:00+00:00",
"ids": [
{
"system_name": "Red Hat Bugzilla ID",
"text": "2069793"
}
],
"notes": [
{
"category": "description",
"text": "A flaw was found in KVM. When updating a guest\u0027s page table entry, vm_pgoff was improperly used as the offset to get the page\u0027s pfn. As vaddr and vm_pgoff are controllable by user-mode processes, this flaw allows unprivileged local users on the host to write outside the userspace region and potentially corrupt the kernel, resulting in a denial of service condition.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "kernel: KVM: cmpxchg_gpte can write to pfns outside the userspace region",
"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-2022-1158"
},
{
"category": "external",
"summary": "RHBZ#2069793",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2069793"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2022-1158",
"url": "https://www.cve.org/CVERecord?id=CVE-2022-1158"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2022-1158",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-1158"
},
{
"category": "external",
"summary": "https://www.openwall.com/lists/oss-security/2022/04/08/4",
"url": "https://www.openwall.com/lists/oss-security/2022/04/08/4"
}
],
"release_date": "2022-04-07T15:00:00+00:00",
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{
"category": "vendor_fix",
"date": "2022-11-08T09:25:15+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 rebooted for this update to take effect.",
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"title": "Vulnerability description"
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{
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{
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{
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}
],
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{
"category": "vendor_fix",
"date": "2022-11-08T09:25:15+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 rebooted for this update to take effect.",
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},
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"title": "Vulnerability description"
},
{
"category": "summary",
"text": "kernel: LoadPin bypass via dm-verity table reload",
"title": "Vulnerability summary"
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{
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"text": "Starting from the Red Hat Enterprise Linux version 8.7 the bug already fixed (by previous ticket https://bugzilla.redhat.com/show_bug.cgi?id=2012340).\nSimilar for the Red Hat Enterprise Linux version 9.1 it is already fixed (by the ticket https://bugzilla.redhat.com/show_bug.cgi?id=2090507).",
"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.",
"title": "CVSS score applicability"
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],
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},
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}
],
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{
"category": "description",
"text": "A use-after-free flaw was found in nf_tables cross-table in the net/netfilter/nf_tables_api.c function in the Linux kernel. This flaw allows a local, privileged attacker to cause a use-after-free problem at the time of table deletion, possibly leading to local privilege escalation.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "kernel: nf_tables cross-table potential use-after-free may lead to local privilege escalation",
"title": "Vulnerability summary"
},
{
"category": "general",
"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
"title": "CVSS score applicability"
}
],
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},
{
"category": "external",
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"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2114878"
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{
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"url": "https://www.cve.org/CVERecord?id=CVE-2022-2586"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2022-2586",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-2586"
},
{
"category": "external",
"summary": "https://lore.kernel.org/netfilter-devel/20220809170148.164591-1-cascardo@canonical.com/T/#t",
"url": "https://lore.kernel.org/netfilter-devel/20220809170148.164591-1-cascardo@canonical.com/T/#t"
},
{
"category": "external",
"summary": "https://www.openwall.com/lists/oss-security/2022/08/09/5",
"url": "https://www.openwall.com/lists/oss-security/2022/08/09/5"
},
{
"category": "external",
"summary": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog",
"url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog"
}
],
"release_date": "2022-08-09T17:00:00+00:00",
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{
"category": "vendor_fix",
"date": "2022-11-08T09:25:15+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 rebooted for this update to take effect.",
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{
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"text": "An integer coercion error was found in the openvswitch kernel module. Given a sufficiently large number of actions, while copying and reserving memory for a new action of a new flow, the reserve_sfa_size() function does not return -EMSGSIZE as expected, potentially leading to an out-of-bounds write access. This flaw allows a local user to crash or potentially escalate their privileges on the system.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "kernel: openvswitch: integer underflow leads to out-of-bounds write in reserve_sfa_size()",
"title": "Vulnerability summary"
},
{
"category": "other",
"text": "The `openvswitch` is not supported out of the Layered Products subscriptions (OCP, OSP, RHV). There are no Layered Products based on Red Hat Enterprise Linux 7 at the present time. Therefore, this CVE is not planned to be addressed on Red Hat Enterprise Linux 7.",
"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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{
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{
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"summary": "https://nvd.nist.gov/vuln/detail/CVE-2022-2639",
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"date": "2022-11-08T09:25:15+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 rebooted for this update to take effect.",
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{
"cve": "CVE-2022-2938",
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"title": "Vulnerability summary"
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},
{
"cve": "CVE-2022-21499",
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{
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"title": "Vulnerability description"
},
{
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"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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{
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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=eadb2f47a3ced5c64b23b90fd2a3463f63726066",
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{
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"date": "2022-11-08T09:25:15+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 rebooted for this update to take effect.",
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"title": "kernel: possible to use the debugger to write zero into a location of choice"
},
{
"cve": "CVE-2022-24448",
"cwe": {
"id": "CWE-908",
"name": "Use of Uninitialized Resource"
},
"discovery_date": "2022-02-07T00:00:00+00:00",
"ids": [
{
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"text": "2051444"
}
],
"notes": [
{
"category": "description",
"text": "A flaw was found in the Linux kernel. When an application tries to open a directory (using the O_DIRECTORY flag) in a mounted NFS filesystem, a lookup operation is performed. If the NFS server returns a file as a result of the lookup, the NFS filesystem returns an uninitialized file descriptor instead of the expected ENOTDIR value. This flaw leads to the kernel\u0027s data leak into the userspace.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "kernel: nfs_atomic_open() returns uninitialized data instead of ENOTDIR",
"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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{
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{
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"text": "A use-after-free flaw was found in the Linux kernel\u2019s net/sunrpc/xprt.c function in the Remote Procedure Call (SunRPC) protocol. This flaw allows a local attacker to crash the system, leading to a kernel information leak issue.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "kernel: use after free in SUNRPC subsystem",
"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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{
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"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2074208"
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{
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{
"category": "external",
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{
"category": "external",
"summary": "http://www.openwall.com/lists/oss-security/2022/04/11/3",
"url": "http://www.openwall.com/lists/oss-security/2022/04/11/3"
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"date": "2022-11-08T09:25:15+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 rebooted for this update to take effect.",
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"text": "A use-after-free flaw was found in u32_change in net/sched/cls_u32.c in the network subcomponent of the Linux kernel. This flaw allows a local attacker to crash the system, cause a privilege escalation, and leak kernel information.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "kernel: use-after-free due to improper update of reference count in net/sched/cls_u32.c",
"title": "Vulnerability summary"
},
{
"category": "other",
"text": "Keeping the impact Moderate, because only memory leak can happen by default, and both hard to reproduce (at least reproducer not exists yet).",
"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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"category": "self",
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"url": "https://access.redhat.com/security/cve/CVE-2022-29581"
},
{
"category": "external",
"summary": "RHBZ#2088021",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2088021"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2022-29581",
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},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2022-29581",
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},
{
"category": "external",
"summary": "https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=3db09e762dc79584a69c10d74a6b98f89a9979f8",
"url": "https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=3db09e762dc79584a69c10d74a6b98f89a9979f8"
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{
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"date": "2022-11-08T09:25:15+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 rebooted for this update to take effect.",
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"title": "kernel: use-after-free due to improper update of reference count in net/sched/cls_u32.c"
},
{
"cve": "CVE-2022-36946",
"discovery_date": "2022-08-01T00:00:00+00:00",
"ids": [
{
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{
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"text": "A memory corruption flaw was found in the Linux kernel\u2019s Netfilter subsystem in the way a local user uses the libnetfilter_queue when analyzing a corrupted network packet. This flaw allows a local user to crash the system or a remote user to crash the system when the libnetfilter_queue is used by a local user.",
"title": "Vulnerability description"
},
{
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"text": "kernel: DoS in nfqnl_mangle in net/netfilter/nfnetlink_queue.c",
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},
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{
"category": "self",
"summary": "Canonical URL",
"url": "https://access.redhat.com/security/cve/CVE-2022-36946"
},
{
"category": "external",
"summary": "RHBZ#2115278",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2115278"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2022-36946",
"url": "https://www.cve.org/CVERecord?id=CVE-2022-36946"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2022-36946",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-36946"
},
{
"category": "external",
"summary": "https://lore.kernel.org/all/20220726104206.2036-1-fw@strlen.de/t/",
"url": "https://lore.kernel.org/all/20220726104206.2036-1-fw@strlen.de/t/"
}
],
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{
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"date": "2022-11-08T09:25:15+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 rebooted for this update to take effect.",
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"title": "kernel: DoS in nfqnl_mangle in net/netfilter/nfnetlink_queue.c"
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{
"cve": "CVE-2022-48918",
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"id": "CWE-476",
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{
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"text": "A denial of service vulnerability was found in the Linux kernel. When debugfs is set as off in the kernel command line, iwiwifi\u0027s mvm module uses an invalid/unchecked debugfs_dir pointer, resulting in disruption to availability.",
"title": "Vulnerability description"
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{
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{
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"references": [
{
"category": "self",
"summary": "Canonical URL",
"url": "https://access.redhat.com/security/cve/CVE-2022-48918"
},
{
"category": "external",
"summary": "RHBZ#2307171",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2307171"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2022-48918",
"url": "https://www.cve.org/CVERecord?id=CVE-2022-48918"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2022-48918",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-48918"
},
{
"category": "external",
"summary": "https://lore.kernel.org/linux-cve-announce/2024082217-CVE-2022-48918-9b85@gregkh/T",
"url": "https://lore.kernel.org/linux-cve-announce/2024082217-CVE-2022-48918-9b85@gregkh/T"
}
],
"release_date": "2024-08-22T00:00:00+00:00",
"remediations": [
{
"category": "vendor_fix",
"date": "2022-11-08T09:25:15+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 rebooted for this update to take effect.",
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"category": "workaround",
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"title": "kernel: iwlwifi: mvm: check debugfs_dir ptr before use"
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}
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.