CVE-2021-47100 (GCVE-0-2021-47100)

Vulnerability from cvelistv5 – Published: 2024-03-04 18:10 – Updated: 2025-05-04 07:04
VLAI?
Title
ipmi: Fix UAF when uninstall ipmi_si and ipmi_msghandler module
Summary
In the Linux kernel, the following vulnerability has been resolved: ipmi: Fix UAF when uninstall ipmi_si and ipmi_msghandler module Hi, When testing install and uninstall of ipmi_si.ko and ipmi_msghandler.ko, the system crashed. The log as follows: [ 141.087026] BUG: unable to handle kernel paging request at ffffffffc09b3a5a [ 141.087241] PGD 8fe4c0d067 P4D 8fe4c0d067 PUD 8fe4c0f067 PMD 103ad89067 PTE 0 [ 141.087464] Oops: 0010 [#1] SMP NOPTI [ 141.087580] CPU: 67 PID: 668 Comm: kworker/67:1 Kdump: loaded Not tainted 4.18.0.x86_64 #47 [ 141.088009] Workqueue: events 0xffffffffc09b3a40 [ 141.088009] RIP: 0010:0xffffffffc09b3a5a [ 141.088009] Code: Bad RIP value. [ 141.088009] RSP: 0018:ffffb9094e2c3e88 EFLAGS: 00010246 [ 141.088009] RAX: 0000000000000000 RBX: ffff9abfdb1f04a0 RCX: 0000000000000000 [ 141.088009] RDX: 0000000000000000 RSI: 0000000000000246 RDI: 0000000000000246 [ 141.088009] RBP: 0000000000000000 R08: ffff9abfffee3cb8 R09: 00000000000002e1 [ 141.088009] R10: ffffb9094cb73d90 R11: 00000000000f4240 R12: ffff9abfffee8700 [ 141.088009] R13: 0000000000000000 R14: ffff9abfdb1f04a0 R15: ffff9abfdb1f04a8 [ 141.088009] FS: 0000000000000000(0000) GS:ffff9abfffec0000(0000) knlGS:0000000000000000 [ 141.088009] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 141.088009] CR2: ffffffffc09b3a30 CR3: 0000008fe4c0a001 CR4: 00000000007606e0 [ 141.088009] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 141.088009] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 141.088009] PKRU: 55555554 [ 141.088009] Call Trace: [ 141.088009] ? process_one_work+0x195/0x390 [ 141.088009] ? worker_thread+0x30/0x390 [ 141.088009] ? process_one_work+0x390/0x390 [ 141.088009] ? kthread+0x10d/0x130 [ 141.088009] ? kthread_flush_work_fn+0x10/0x10 [ 141.088009] ? ret_from_fork+0x35/0x40] BUG: unable to handle kernel paging request at ffffffffc0b28a5a [ 200.223240] PGD 97fe00d067 P4D 97fe00d067 PUD 97fe00f067 PMD a580cbf067 PTE 0 [ 200.223464] Oops: 0010 [#1] SMP NOPTI [ 200.223579] CPU: 63 PID: 664 Comm: kworker/63:1 Kdump: loaded Not tainted 4.18.0.x86_64 #46 [ 200.224008] Workqueue: events 0xffffffffc0b28a40 [ 200.224008] RIP: 0010:0xffffffffc0b28a5a [ 200.224008] Code: Bad RIP value. [ 200.224008] RSP: 0018:ffffbf3c8e2a3e88 EFLAGS: 00010246 [ 200.224008] RAX: 0000000000000000 RBX: ffffa0799ad6bca0 RCX: 0000000000000000 [ 200.224008] RDX: 0000000000000000 RSI: 0000000000000246 RDI: 0000000000000246 [ 200.224008] RBP: 0000000000000000 R08: ffff9fe43fde3cb8 R09: 00000000000000d5 [ 200.224008] R10: ffffbf3c8cb53d90 R11: 00000000000f4240 R12: ffff9fe43fde8700 [ 200.224008] R13: 0000000000000000 R14: ffffa0799ad6bca0 R15: ffffa0799ad6bca8 [ 200.224008] FS: 0000000000000000(0000) GS:ffff9fe43fdc0000(0000) knlGS:0000000000000000 [ 200.224008] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 200.224008] CR2: ffffffffc0b28a30 CR3: 00000097fe00a002 CR4: 00000000007606e0 [ 200.224008] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 200.224008] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 200.224008] PKRU: 55555554 [ 200.224008] Call Trace: [ 200.224008] ? process_one_work+0x195/0x390 [ 200.224008] ? worker_thread+0x30/0x390 [ 200.224008] ? process_one_work+0x390/0x390 [ 200.224008] ? kthread+0x10d/0x130 [ 200.224008] ? kthread_flush_work_fn+0x10/0x10 [ 200.224008] ? ret_from_fork+0x35/0x40 [ 200.224008] kernel fault(0x1) notification starting on CPU 63 [ 200.224008] kernel fault(0x1) notification finished on CPU 63 [ 200.224008] CR2: ffffffffc0b28a5a [ 200.224008] ---[ end trace c82a412d93f57412 ]--- The reason is as follows: T1: rmmod ipmi_si. ->ipmi_unregister_smi() -> ipmi_bmc_unregister() -> __ipmi_bmc_unregister() -> kref_put(&bmc->usecount, cleanup_bmc_device); -> schedule_work(&bmc->remove_work); T2: rmmod ipmi_msghandl ---truncated---
Severity ?
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: b2cfd8ab4add53c2070367bfee2f5b738f51698d , < 925229d552724e1bba1abf01d3a0b1318539b012 (git)
Affected: b2cfd8ab4add53c2070367bfee2f5b738f51698d , < 992649b8b16843d27eb39ceea5f9cf85ffb50a18 (git)
Affected: b2cfd8ab4add53c2070367bfee2f5b738f51698d , < 6809da5185141e61401da5b01896b79a4deed1ad (git)
Affected: b2cfd8ab4add53c2070367bfee2f5b738f51698d , < 6b3f7e4b10f343f05b5fb513b07a9168fbf1172e (git)
Affected: b2cfd8ab4add53c2070367bfee2f5b738f51698d , < ffb76a86f8096a8206be03b14adda6092e18e275 (git)
Create a notification for this product.
    Linux Linux Affected: 4.15
Unaffected: 0 , < 4.15 (semver)
Unaffected: 4.19.223 , ≤ 4.19.* (semver)
Unaffected: 5.4.169 , ≤ 5.4.* (semver)
Unaffected: 5.10.89 , ≤ 5.10.* (semver)
Unaffected: 5.15.12 , ≤ 5.15.* (semver)
Unaffected: 5.16 , ≤ * (original_commit_for_fix)
Create a notification for this product.
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          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nipmi: Fix UAF when uninstall ipmi_si and ipmi_msghandler module\n\nHi,\n\nWhen testing install and uninstall of ipmi_si.ko and ipmi_msghandler.ko,\nthe system crashed.\n\nThe log as follows:\n[  141.087026] BUG: unable to handle kernel paging request at ffffffffc09b3a5a\n[  141.087241] PGD 8fe4c0d067 P4D 8fe4c0d067 PUD 8fe4c0f067 PMD 103ad89067 PTE 0\n[  141.087464] Oops: 0010 [#1] SMP NOPTI\n[  141.087580] CPU: 67 PID: 668 Comm: kworker/67:1 Kdump: loaded Not tainted 4.18.0.x86_64 #47\n[  141.088009] Workqueue: events 0xffffffffc09b3a40\n[  141.088009] RIP: 0010:0xffffffffc09b3a5a\n[  141.088009] Code: Bad RIP value.\n[  141.088009] RSP: 0018:ffffb9094e2c3e88 EFLAGS: 00010246\n[  141.088009] RAX: 0000000000000000 RBX: ffff9abfdb1f04a0 RCX: 0000000000000000\n[  141.088009] RDX: 0000000000000000 RSI: 0000000000000246 RDI: 0000000000000246\n[  141.088009] RBP: 0000000000000000 R08: ffff9abfffee3cb8 R09: 00000000000002e1\n[  141.088009] R10: ffffb9094cb73d90 R11: 00000000000f4240 R12: ffff9abfffee8700\n[  141.088009] R13: 0000000000000000 R14: ffff9abfdb1f04a0 R15: ffff9abfdb1f04a8\n[  141.088009] FS:  0000000000000000(0000) GS:ffff9abfffec0000(0000) knlGS:0000000000000000\n[  141.088009] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033\n[  141.088009] CR2: ffffffffc09b3a30 CR3: 0000008fe4c0a001 CR4: 00000000007606e0\n[  141.088009] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000\n[  141.088009] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400\n[  141.088009] PKRU: 55555554\n[  141.088009] Call Trace:\n[  141.088009]  ? process_one_work+0x195/0x390\n[  141.088009]  ? worker_thread+0x30/0x390\n[  141.088009]  ? process_one_work+0x390/0x390\n[  141.088009]  ? kthread+0x10d/0x130\n[  141.088009]  ? kthread_flush_work_fn+0x10/0x10\n[  141.088009]  ? ret_from_fork+0x35/0x40] BUG: unable to handle kernel paging request at ffffffffc0b28a5a\n[  200.223240] PGD 97fe00d067 P4D 97fe00d067 PUD 97fe00f067 PMD a580cbf067 PTE 0\n[  200.223464] Oops: 0010 [#1] SMP NOPTI\n[  200.223579] CPU: 63 PID: 664 Comm: kworker/63:1 Kdump: loaded Not tainted 4.18.0.x86_64 #46\n[  200.224008] Workqueue: events 0xffffffffc0b28a40\n[  200.224008] RIP: 0010:0xffffffffc0b28a5a\n[  200.224008] Code: Bad RIP value.\n[  200.224008] RSP: 0018:ffffbf3c8e2a3e88 EFLAGS: 00010246\n[  200.224008] RAX: 0000000000000000 RBX: ffffa0799ad6bca0 RCX: 0000000000000000\n[  200.224008] RDX: 0000000000000000 RSI: 0000000000000246 RDI: 0000000000000246\n[  200.224008] RBP: 0000000000000000 R08: ffff9fe43fde3cb8 R09: 00000000000000d5\n[  200.224008] R10: ffffbf3c8cb53d90 R11: 00000000000f4240 R12: ffff9fe43fde8700\n[  200.224008] R13: 0000000000000000 R14: ffffa0799ad6bca0 R15: ffffa0799ad6bca8\n[  200.224008] FS:  0000000000000000(0000) GS:ffff9fe43fdc0000(0000) knlGS:0000000000000000\n[  200.224008] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033\n[  200.224008] CR2: ffffffffc0b28a30 CR3: 00000097fe00a002 CR4: 00000000007606e0\n[  200.224008] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000\n[  200.224008] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400\n[  200.224008] PKRU: 55555554\n[  200.224008] Call Trace:\n[  200.224008]  ? process_one_work+0x195/0x390\n[  200.224008]  ? worker_thread+0x30/0x390\n[  200.224008]  ? process_one_work+0x390/0x390\n[  200.224008]  ? kthread+0x10d/0x130\n[  200.224008]  ? kthread_flush_work_fn+0x10/0x10\n[  200.224008]  ? ret_from_fork+0x35/0x40\n[  200.224008] kernel fault(0x1) notification starting on CPU 63\n[  200.224008] kernel fault(0x1) notification finished on CPU 63\n[  200.224008] CR2: ffffffffc0b28a5a\n[  200.224008] ---[ end trace c82a412d93f57412 ]---\n\nThe reason is as follows:\nT1: rmmod ipmi_si.\n    -\u003eipmi_unregister_smi()\n        -\u003e ipmi_bmc_unregister()\n            -\u003e __ipmi_bmc_unregister()\n                -\u003e kref_put(\u0026bmc-\u003eusecount, cleanup_bmc_device);\n                    -\u003e schedule_work(\u0026bmc-\u003eremove_work);\n\nT2: rmmod ipmi_msghandl\n---truncated---"
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    "cveId": "CVE-2021-47100",
    "datePublished": "2024-03-04T18:10:52.602Z",
    "dateReserved": "2024-02-29T22:33:44.301Z",
    "dateUpdated": "2025-05-04T07:04:10.477Z",
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\"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2024-06-26T20:38:38.889138Z\"}}}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2024-06-26T20:38:44.175Z\"}}], \"cna\": {\"title\": \"ipmi: Fix UAF when uninstall ipmi_si and ipmi_msghandler module\", \"affected\": [{\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"b2cfd8ab4add53c2070367bfee2f5b738f51698d\", \"lessThan\": \"925229d552724e1bba1abf01d3a0b1318539b012\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"b2cfd8ab4add53c2070367bfee2f5b738f51698d\", \"lessThan\": \"992649b8b16843d27eb39ceea5f9cf85ffb50a18\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"b2cfd8ab4add53c2070367bfee2f5b738f51698d\", \"lessThan\": \"6809da5185141e61401da5b01896b79a4deed1ad\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"b2cfd8ab4add53c2070367bfee2f5b738f51698d\", \"lessThan\": \"6b3f7e4b10f343f05b5fb513b07a9168fbf1172e\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"b2cfd8ab4add53c2070367bfee2f5b738f51698d\", \"lessThan\": \"ffb76a86f8096a8206be03b14adda6092e18e275\", \"versionType\": \"git\"}], \"programFiles\": [\"drivers/char/ipmi/ipmi_msghandler.c\"], \"defaultStatus\": \"unaffected\"}, {\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"4.15\"}, {\"status\": \"unaffected\", \"version\": \"0\", \"lessThan\": \"4.15\", \"versionType\": \"semver\"}, {\"status\": \"unaffected\", \"version\": \"4.19.223\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"4.19.*\"}, {\"status\": \"unaffected\", \"version\": \"5.4.169\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.4.*\"}, {\"status\": \"unaffected\", \"version\": \"5.10.89\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.10.*\"}, {\"status\": \"unaffected\", \"version\": \"5.15.12\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.15.*\"}, {\"status\": \"unaffected\", \"version\": \"5.16\", \"versionType\": \"original_commit_for_fix\", \"lessThanOrEqual\": \"*\"}], \"programFiles\": [\"drivers/char/ipmi/ipmi_msghandler.c\"], \"defaultStatus\": \"affected\"}], \"references\": [{\"url\": \"https://git.kernel.org/stable/c/925229d552724e1bba1abf01d3a0b1318539b012\"}, {\"url\": \"https://git.kernel.org/stable/c/992649b8b16843d27eb39ceea5f9cf85ffb50a18\"}, {\"url\": \"https://git.kernel.org/stable/c/6809da5185141e61401da5b01896b79a4deed1ad\"}, {\"url\": \"https://git.kernel.org/stable/c/6b3f7e4b10f343f05b5fb513b07a9168fbf1172e\"}, {\"url\": \"https://git.kernel.org/stable/c/ffb76a86f8096a8206be03b14adda6092e18e275\"}], \"x_generator\": {\"engine\": \"bippy-1.2.0\"}, \"descriptions\": [{\"lang\": \"en\", \"value\": \"In the Linux kernel, the following vulnerability has been resolved:\\n\\nipmi: Fix UAF when uninstall ipmi_si and ipmi_msghandler module\\n\\nHi,\\n\\nWhen testing install and uninstall of ipmi_si.ko and ipmi_msghandler.ko,\\nthe system crashed.\\n\\nThe log as follows:\\n[  141.087026] BUG: unable to handle kernel paging request at ffffffffc09b3a5a\\n[  141.087241] PGD 8fe4c0d067 P4D 8fe4c0d067 PUD 8fe4c0f067 PMD 103ad89067 PTE 0\\n[  141.087464] Oops: 0010 [#1] SMP NOPTI\\n[  141.087580] CPU: 67 PID: 668 Comm: kworker/67:1 Kdump: loaded Not tainted 4.18.0.x86_64 #47\\n[  141.088009] Workqueue: events 0xffffffffc09b3a40\\n[  141.088009] RIP: 0010:0xffffffffc09b3a5a\\n[  141.088009] Code: Bad RIP value.\\n[  141.088009] RSP: 0018:ffffb9094e2c3e88 EFLAGS: 00010246\\n[  141.088009] RAX: 0000000000000000 RBX: ffff9abfdb1f04a0 RCX: 0000000000000000\\n[  141.088009] RDX: 0000000000000000 RSI: 0000000000000246 RDI: 0000000000000246\\n[  141.088009] RBP: 0000000000000000 R08: ffff9abfffee3cb8 R09: 00000000000002e1\\n[  141.088009] R10: ffffb9094cb73d90 R11: 00000000000f4240 R12: ffff9abfffee8700\\n[  141.088009] R13: 0000000000000000 R14: ffff9abfdb1f04a0 R15: ffff9abfdb1f04a8\\n[  141.088009] FS:  0000000000000000(0000) GS:ffff9abfffec0000(0000) knlGS:0000000000000000\\n[  141.088009] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033\\n[  141.088009] CR2: ffffffffc09b3a30 CR3: 0000008fe4c0a001 CR4: 00000000007606e0\\n[  141.088009] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000\\n[  141.088009] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400\\n[  141.088009] PKRU: 55555554\\n[  141.088009] Call Trace:\\n[  141.088009]  ? process_one_work+0x195/0x390\\n[  141.088009]  ? worker_thread+0x30/0x390\\n[  141.088009]  ? process_one_work+0x390/0x390\\n[  141.088009]  ? kthread+0x10d/0x130\\n[  141.088009]  ? kthread_flush_work_fn+0x10/0x10\\n[  141.088009]  ? ret_from_fork+0x35/0x40] BUG: unable to handle kernel paging request at ffffffffc0b28a5a\\n[  200.223240] PGD 97fe00d067 P4D 97fe00d067 PUD 97fe00f067 PMD a580cbf067 PTE 0\\n[  200.223464] Oops: 0010 [#1] SMP NOPTI\\n[  200.223579] CPU: 63 PID: 664 Comm: kworker/63:1 Kdump: loaded Not tainted 4.18.0.x86_64 #46\\n[  200.224008] Workqueue: events 0xffffffffc0b28a40\\n[  200.224008] RIP: 0010:0xffffffffc0b28a5a\\n[  200.224008] Code: Bad RIP value.\\n[  200.224008] RSP: 0018:ffffbf3c8e2a3e88 EFLAGS: 00010246\\n[  200.224008] RAX: 0000000000000000 RBX: ffffa0799ad6bca0 RCX: 0000000000000000\\n[  200.224008] RDX: 0000000000000000 RSI: 0000000000000246 RDI: 0000000000000246\\n[  200.224008] RBP: 0000000000000000 R08: ffff9fe43fde3cb8 R09: 00000000000000d5\\n[  200.224008] R10: ffffbf3c8cb53d90 R11: 00000000000f4240 R12: ffff9fe43fde8700\\n[  200.224008] R13: 0000000000000000 R14: ffffa0799ad6bca0 R15: ffffa0799ad6bca8\\n[  200.224008] FS:  0000000000000000(0000) GS:ffff9fe43fdc0000(0000) knlGS:0000000000000000\\n[  200.224008] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033\\n[  200.224008] CR2: ffffffffc0b28a30 CR3: 00000097fe00a002 CR4: 00000000007606e0\\n[  200.224008] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000\\n[  200.224008] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400\\n[  200.224008] PKRU: 55555554\\n[  200.224008] Call Trace:\\n[  200.224008]  ? process_one_work+0x195/0x390\\n[  200.224008]  ? worker_thread+0x30/0x390\\n[  200.224008]  ? process_one_work+0x390/0x390\\n[  200.224008]  ? kthread+0x10d/0x130\\n[  200.224008]  ? kthread_flush_work_fn+0x10/0x10\\n[  200.224008]  ? ret_from_fork+0x35/0x40\\n[  200.224008] kernel fault(0x1) notification starting on CPU 63\\n[  200.224008] kernel fault(0x1) notification finished on CPU 63\\n[  200.224008] CR2: ffffffffc0b28a5a\\n[  200.224008] ---[ end trace c82a412d93f57412 ]---\\n\\nThe reason is as follows:\\nT1: rmmod ipmi_si.\\n    -\u003eipmi_unregister_smi()\\n        -\u003e ipmi_bmc_unregister()\\n            -\u003e __ipmi_bmc_unregister()\\n                -\u003e kref_put(\u0026bmc-\u003eusecount, cleanup_bmc_device);\\n                    -\u003e schedule_work(\u0026bmc-\u003eremove_work);\\n\\nT2: rmmod ipmi_msghandl\\n---truncated---\"}], \"cpeApplicability\": [{\"nodes\": [{\"negate\": false, \"cpeMatch\": [{\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"4.19.223\", \"versionStartIncluding\": \"4.15\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.4.169\", \"versionStartIncluding\": \"4.15\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.10.89\", \"versionStartIncluding\": \"4.15\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.15.12\", \"versionStartIncluding\": \"4.15\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.16\", \"versionStartIncluding\": \"4.15\"}], \"operator\": \"OR\"}]}], \"providerMetadata\": {\"orgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"shortName\": \"Linux\", \"dateUpdated\": \"2025-05-04T07:04:10.477Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2021-47100\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2025-05-04T07:04:10.477Z\", \"dateReserved\": \"2024-02-29T22:33:44.301Z\", \"assignerOrgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"datePublished\": \"2024-03-04T18:10:52.602Z\", \"assignerShortName\": \"Linux\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.1"
    }
  }
}


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Sightings

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Detection rules are retrieved from Rulezet.