CVE-2021-47078
Vulnerability from cvelistv5
Published
2024-03-01 21:15
Modified
2024-11-04 11:59
Severity ?
EPSS score ?
Summary
RDMA/rxe: Clear all QP fields if creation failed
References
{
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"baseScore": 5.3,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "LOW",
"integrityImpact": "LOW",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L",
"version": "3.1"
}
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"content": {
"id": "CVE-2021-47078",
"options": [
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"Exploitation": "none"
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{
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"Technical Impact": "partial"
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"role": "CISA Coordinator",
"timestamp": "2024-03-06T15:32:35.393910Z",
"version": "2.0.3"
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"type": "ssvc"
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"product": "Linux",
"programFiles": [
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"version": "4.9.270",
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"descriptions": [
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"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nRDMA/rxe: Clear all QP fields if creation failed\n\nrxe_qp_do_cleanup() relies on valid pointer values in QP for the properly\ncreated ones, but in case rxe_qp_from_init() failed it was filled with\ngarbage and caused tot the following error.\n\n refcount_t: underflow; use-after-free.\n WARNING: CPU: 1 PID: 12560 at lib/refcount.c:28 refcount_warn_saturate+0x1d1/0x1e0 lib/refcount.c:28\n Modules linked in:\n CPU: 1 PID: 12560 Comm: syz-executor.4 Not tainted 5.12.0-syzkaller #0\n Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011\n RIP: 0010:refcount_warn_saturate+0x1d1/0x1e0 lib/refcount.c:28\n Code: e9 db fe ff ff 48 89 df e8 2c c2 ea fd e9 8a fe ff ff e8 72 6a a7 fd 48 c7 c7 e0 b2 c1 89 c6 05 dc 3a e6 09 01 e8 ee 74 fb 04 \u003c0f\u003e 0b e9 af fe ff ff 0f 1f 84 00 00 00 00 00 41 56 41 55 41 54 55\n RSP: 0018:ffffc900097ceba8 EFLAGS: 00010286\n RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000\n RDX: 0000000000040000 RSI: ffffffff815bb075 RDI: fffff520012f9d67\n RBP: 0000000000000003 R08: 0000000000000000 R09: 0000000000000000\n R10: ffffffff815b4eae R11: 0000000000000000 R12: ffff8880322a4800\n R13: ffff8880322a4940 R14: ffff888033044e00 R15: 0000000000000000\n FS: 00007f6eb2be3700(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000\n CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033\n CR2: 00007fdbe5d41000 CR3: 000000001d181000 CR4: 00000000001506e0\n DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000\n DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400\n Call Trace:\n __refcount_sub_and_test include/linux/refcount.h:283 [inline]\n __refcount_dec_and_test include/linux/refcount.h:315 [inline]\n refcount_dec_and_test include/linux/refcount.h:333 [inline]\n kref_put include/linux/kref.h:64 [inline]\n rxe_qp_do_cleanup+0x96f/0xaf0 drivers/infiniband/sw/rxe/rxe_qp.c:805\n execute_in_process_context+0x37/0x150 kernel/workqueue.c:3327\n rxe_elem_release+0x9f/0x180 drivers/infiniband/sw/rxe/rxe_pool.c:391\n kref_put include/linux/kref.h:65 [inline]\n rxe_create_qp+0x2cd/0x310 drivers/infiniband/sw/rxe/rxe_verbs.c:425\n _ib_create_qp drivers/infiniband/core/core_priv.h:331 [inline]\n ib_create_named_qp+0x2ad/0x1370 drivers/infiniband/core/verbs.c:1231\n ib_create_qp include/rdma/ib_verbs.h:3644 [inline]\n create_mad_qp+0x177/0x2d0 drivers/infiniband/core/mad.c:2920\n ib_mad_port_open drivers/infiniband/core/mad.c:3001 [inline]\n ib_mad_init_device+0xd6f/0x1400 drivers/infiniband/core/mad.c:3092\n add_client_context+0x405/0x5e0 drivers/infiniband/core/device.c:717\n enable_device_and_get+0x1cd/0x3b0 drivers/infiniband/core/device.c:1331\n ib_register_device drivers/infiniband/core/device.c:1413 [inline]\n ib_register_device+0x7c7/0xa50 drivers/infiniband/core/device.c:1365\n rxe_register_device+0x3d5/0x4a0 drivers/infiniband/sw/rxe/rxe_verbs.c:1147\n rxe_add+0x12fe/0x16d0 drivers/infiniband/sw/rxe/rxe.c:247\n rxe_net_add+0x8c/0xe0 drivers/infiniband/sw/rxe/rxe_net.c:503\n rxe_newlink drivers/infiniband/sw/rxe/rxe.c:269 [inline]\n rxe_newlink+0xb7/0xe0 drivers/infiniband/sw/rxe/rxe.c:250\n nldev_newlink+0x30e/0x550 drivers/infiniband/core/nldev.c:1555\n rdma_nl_rcv_msg+0x36d/0x690 drivers/infiniband/core/netlink.c:195\n rdma_nl_rcv_skb drivers/infiniband/core/netlink.c:239 [inline]\n rdma_nl_rcv+0x2ee/0x430 drivers/infiniband/core/netlink.c:259\n netlink_unicast_kernel net/netlink/af_netlink.c:1312 [inline]\n netlink_unicast+0x533/0x7d0 net/netlink/af_netlink.c:1338\n netlink_sendmsg+0x856/0xd90 net/netlink/af_netlink.c:1927\n sock_sendmsg_nosec net/socket.c:654 [inline]\n sock_sendmsg+0xcf/0x120 net/socket.c:674\n ____sys_sendmsg+0x6e8/0x810 net/socket.c:2350\n ___sys_sendmsg+0xf3/0x170 net/socket.c:2404\n __sys_sendmsg+0xe5/0x1b0 net/socket.c:2433\n do_syscall_64+0x3a/0xb0 arch/x86/entry/common.c:47\n entry_SYSCALL_64_after_hwframe+0\n---truncated---"
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"dateUpdated": "2024-11-04T11:59:00.476Z",
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"shortName": "Linux"
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"references": [
{
"url": "https://git.kernel.org/stable/c/c65391dd9f0a47617e96e38bd27e277cbe1c40b0"
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"url": "https://git.kernel.org/stable/c/6a8086a42dfbf548a42bf2ae4faa291645c72c66"
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"url": "https://git.kernel.org/stable/c/f3783c415bf6d2ead3d7aa2c38802bbe10723646"
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"url": "https://git.kernel.org/stable/c/a62225d951d77eb20208fed8fc199e0c9b1df08b"
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"url": "https://git.kernel.org/stable/c/03344e843ab6dd3b3f2cadfb65ed910590856c70"
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"url": "https://git.kernel.org/stable/c/67f29896fdc83298eed5a6576ff8f9873f709228"
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],
"title": "RDMA/rxe: Clear all QP fields if creation failed",
"x_generator": {
"engine": "bippy-9e1c9544281a"
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},
"cveMetadata": {
"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"assignerShortName": "Linux",
"cveId": "CVE-2021-47078",
"datePublished": "2024-03-01T21:15:14.679Z",
"dateReserved": "2024-02-29T22:33:44.297Z",
"dateUpdated": "2024-11-04T11:59:00.476Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.1",
"meta": {
"nvd": "{\"cve\":{\"id\":\"CVE-2021-47078\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2024-03-01T22:15:47.333\",\"lastModified\":\"2024-11-01T08:35:01.573\",\"vulnStatus\":\"Awaiting Analysis\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nRDMA/rxe: Clear all QP fields if creation failed\\n\\nrxe_qp_do_cleanup() relies on valid pointer values in QP for the properly\\ncreated ones, but in case rxe_qp_from_init() failed it was filled with\\ngarbage and caused tot the following error.\\n\\n refcount_t: underflow; use-after-free.\\n WARNING: CPU: 1 PID: 12560 at lib/refcount.c:28 refcount_warn_saturate+0x1d1/0x1e0 lib/refcount.c:28\\n Modules linked in:\\n CPU: 1 PID: 12560 Comm: syz-executor.4 Not tainted 5.12.0-syzkaller #0\\n Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011\\n RIP: 0010:refcount_warn_saturate+0x1d1/0x1e0 lib/refcount.c:28\\n Code: e9 db fe ff ff 48 89 df e8 2c c2 ea fd e9 8a fe ff ff e8 72 6a a7 fd 48 c7 c7 e0 b2 c1 89 c6 05 dc 3a e6 09 01 e8 ee 74 fb 04 \u003c0f\u003e 0b e9 af fe ff ff 0f 1f 84 00 00 00 00 00 41 56 41 55 41 54 55\\n RSP: 0018:ffffc900097ceba8 EFLAGS: 00010286\\n RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000\\n RDX: 0000000000040000 RSI: ffffffff815bb075 RDI: fffff520012f9d67\\n RBP: 0000000000000003 R08: 0000000000000000 R09: 0000000000000000\\n R10: ffffffff815b4eae R11: 0000000000000000 R12: ffff8880322a4800\\n R13: ffff8880322a4940 R14: ffff888033044e00 R15: 0000000000000000\\n FS: 00007f6eb2be3700(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000\\n CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033\\n CR2: 00007fdbe5d41000 CR3: 000000001d181000 CR4: 00000000001506e0\\n DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000\\n DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400\\n Call Trace:\\n __refcount_sub_and_test include/linux/refcount.h:283 [inline]\\n __refcount_dec_and_test include/linux/refcount.h:315 [inline]\\n refcount_dec_and_test include/linux/refcount.h:333 [inline]\\n kref_put include/linux/kref.h:64 [inline]\\n rxe_qp_do_cleanup+0x96f/0xaf0 drivers/infiniband/sw/rxe/rxe_qp.c:805\\n execute_in_process_context+0x37/0x150 kernel/workqueue.c:3327\\n rxe_elem_release+0x9f/0x180 drivers/infiniband/sw/rxe/rxe_pool.c:391\\n kref_put include/linux/kref.h:65 [inline]\\n rxe_create_qp+0x2cd/0x310 drivers/infiniband/sw/rxe/rxe_verbs.c:425\\n _ib_create_qp drivers/infiniband/core/core_priv.h:331 [inline]\\n ib_create_named_qp+0x2ad/0x1370 drivers/infiniband/core/verbs.c:1231\\n ib_create_qp include/rdma/ib_verbs.h:3644 [inline]\\n create_mad_qp+0x177/0x2d0 drivers/infiniband/core/mad.c:2920\\n ib_mad_port_open drivers/infiniband/core/mad.c:3001 [inline]\\n ib_mad_init_device+0xd6f/0x1400 drivers/infiniband/core/mad.c:3092\\n add_client_context+0x405/0x5e0 drivers/infiniband/core/device.c:717\\n enable_device_and_get+0x1cd/0x3b0 drivers/infiniband/core/device.c:1331\\n ib_register_device drivers/infiniband/core/device.c:1413 [inline]\\n ib_register_device+0x7c7/0xa50 drivers/infiniband/core/device.c:1365\\n rxe_register_device+0x3d5/0x4a0 drivers/infiniband/sw/rxe/rxe_verbs.c:1147\\n rxe_add+0x12fe/0x16d0 drivers/infiniband/sw/rxe/rxe.c:247\\n rxe_net_add+0x8c/0xe0 drivers/infiniband/sw/rxe/rxe_net.c:503\\n rxe_newlink drivers/infiniband/sw/rxe/rxe.c:269 [inline]\\n rxe_newlink+0xb7/0xe0 drivers/infiniband/sw/rxe/rxe.c:250\\n nldev_newlink+0x30e/0x550 drivers/infiniband/core/nldev.c:1555\\n rdma_nl_rcv_msg+0x36d/0x690 drivers/infiniband/core/netlink.c:195\\n rdma_nl_rcv_skb drivers/infiniband/core/netlink.c:239 [inline]\\n rdma_nl_rcv+0x2ee/0x430 drivers/infiniband/core/netlink.c:259\\n netlink_unicast_kernel net/netlink/af_netlink.c:1312 [inline]\\n netlink_unicast+0x533/0x7d0 net/netlink/af_netlink.c:1338\\n netlink_sendmsg+0x856/0xd90 net/netlink/af_netlink.c:1927\\n sock_sendmsg_nosec net/socket.c:654 [inline]\\n sock_sendmsg+0xcf/0x120 net/socket.c:674\\n ____sys_sendmsg+0x6e8/0x810 net/socket.c:2350\\n ___sys_sendmsg+0xf3/0x170 net/socket.c:2404\\n __sys_sendmsg+0xe5/0x1b0 net/socket.c:2433\\n do_syscall_64+0x3a/0xb0 arch/x86/entry/common.c:47\\n entry_SYSCALL_64_after_hwframe+0\\n---truncated---\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se resolvi\u00f3 la siguiente vulnerabilidad: RDMA/rxe: borra todos los campos QP si la creaci\u00f3n falla. rxe_qp_do_cleanup() se basa en valores de puntero v\u00e1lidos en QP para los creados correctamente, pero en caso de que rxe_qp_from_init() fallara, se llen\u00f3 con basura y provoc\u00f3 el siguiente error. refcount_t: desbordamiento insuficiente; Use After Free. ADVERTENCIA: CPU: 1 PID: 12560 en lib/refcount.c:28 refcount_warn_saturate+0x1d1/0x1e0 lib/refcount.c:28 M\u00f3dulos vinculados en: CPU: 1 PID: 12560 Comm: syz-executor.4 No contaminado 5.12.0 -syzkaller #0 Nombre del hardware: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:refcount_warn_saturate+0x1d1/0x1e0 lib/refcount.c:28 C\u00f3digo: e9 db fe ff ff 48 89 df e8 2c c2 ea fd e9 8a fe ff ff e8 72 6a a7 fd 48 c7 c7 e0 b2 c1 89 c6 05 dc 3a e6 09 01 e8 ee 74 fb 04 \u0026lt;0f\u0026gt; 0b e9 af fe ff ff 0f 1f 84 00 00 00 00 00 41 56 41 55 41 54 55 RSP: 0018:ffffc900097ceba8 EFLAGS: 00010286 RAX: 0000000000000000 RBX: 00000000000000000 RCX: 0000000000000000 RDX: 00 00000000040000 RSI: ffffffff815bb075 RDI: fffff520012f9d67 RBP: 0000000000000003 R08: 00000000000000000 R09: 00000000000000000 R10: ffffffff815b4eae R 11: 0000000000000000 R12: ffff8880322a4800 R13: ffff8880322a4940 R14: ffff888033044e00 R15: 0000000000000000 FS: 00007f6eb2be3700(0000) GS:ffff8880b9d00000(0000) knlGS :0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fdbe5d41000 CR3: 000000001d181000 CR4: 00000000001506e0 DR0: 0000 000000000000 DR1 : 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Seguimiento de llamadas: __refcount_sub_and_test include/linux/refcount.h:283 [ en l\u00ednea] __refcount_dec_and_test include/linux/refcount.h:315 [en l\u00ednea] refcount_dec_and_test include/linux/refcount. h:333 [en l\u00ednea] kref_put include/linux/kref.h:64 [en l\u00ednea] rxe_qp_do_cleanup+0x96f/0xaf0 drivers/infiniband/sw/rxe/rxe_qp.c:805 ejecutar_in_process_context+0x37/0x150 kernel/workqueue.c:3327 rxe_elem_release +0x9f/0x180 controladores/infiniband/sw/rxe/rxe_pool.c:391 kref_put include/linux/kref.h:65 [en l\u00ednea] rxe_create_qp+0x2cd/0x310 controladores/infiniband/sw/rxe/rxe_verbs.c:425 controladores _ib_create_qp /infiniband/core/core_priv.h:331 [en l\u00ednea] ib_create_named_qp+0x2ad/0x1370 controladores/infiniband/core/verbs.c:1231 ib_create_qp include/rdma/ib_verbs.h:3644 [en l\u00ednea] create_mad_qp+0x177/0x2d0 controladores/infiniband /core/mad.c:2920 ib_mad_port_open drivers/infiniband/core/mad.c:3001 [en l\u00ednea] ib_mad_init_device+0xd6f/0x1400 drivers/infiniband/core/mad.c:3092 add_client_context+0x405/0x5e0 drivers/infiniband/core/ device.c:717 enable_device_and_get+0x1cd/0x3b0 drivers/infiniband/core/device.c:1331 ib_register_device drivers/infiniband/core/device.c:1413 [en l\u00ednea] ib_register_device+0x7c7/0xa50 drivers/infiniband/core/device.c :1365 rxe_register_device+0x3d5/0x4a0 controladores/infiniband/sw/rxe/rxe_verbs.c:1147 rxe_add+0x12fe/0x16d0 controladores/infiniband/sw/rxe/rxe.c:247 rxe_net_add+0x8c/0xe0 controladores/infiniband/sw/r xe /rxe_net.c:503 controladores rxe_newlink/infiniband/sw/rxe/rxe.c:269 [en l\u00ednea] controladores rxe_newlink+0xb7/0xe0/infiniband/sw/rxe/rxe.c:250 controladores nldev_newlink+0x30e/0x550/infiniband/ core/nldev.c:1555 rdma_nl_rcv_msg+0x36d/0x690 controladores/infiniband/core/netlink.c:195 rdma_nl_rcv_skb controladores/infiniband/core/netlink.c:239 [en l\u00ednea] rdma_nl_rcv+0x2ee/0x430 controladores/infiniband/core/netlink .c:259 netlink_unicast_kernel net/netlink/af_netlink.c:1312 [en l\u00ednea] netlink_unicast+0x533/0x7d0 net/netlink/af_netlink.c:1338 netlink_sendmsg+0x856/0xd90 net/netlink/af_netlink.c:1927 sock_sendmsg_nosec net/socket. c:654 [en l\u00ednea] sock_sendmsg+0xcf/0x120 net/socket.c:674 ____sys_sendmsg+0x6e8/0x810 net/socket.c:2350 ___sys_sendmsg+0xf3/0x170 net/socket.c:2404 __sys_sendmsg+0xe5/0x1b 0 red/toma .c:2433 do_syscall_64+0x3a/0xb0 arch/x86/entry/common.c:47 Entry_SYSCALL_64_after_hwframe+0 ---truncado---\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"LOW\",\"integrityImpact\":\"LOW\",\"availabilityImpact\":\"LOW\",\"baseScore\":5.3,\"baseSeverity\":\"MEDIUM\"},\"exploitabilityScore\":1.8,\"impactScore\":3.4}]},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/03344e843ab6dd3b3f2cadfb65ed910590856c70\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/2ee4d79c364914989c80de382c0b1a7259a7e4b3\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/67f29896fdc83298eed5a6576ff8f9873f709228\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/6a8086a42dfbf548a42bf2ae4faa291645c72c66\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/a62225d951d77eb20208fed8fc199e0c9b1df08b\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/c65391dd9f0a47617e96e38bd27e277cbe1c40b0\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/f3783c415bf6d2ead3d7aa2c38802bbe10723646\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]}}"
}
}
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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.