admin/nvd-json-data-feeds
1
0
Fork 0
mirror of https://github.com/fkie-cad/nvd-json-data-feeds.git synced 2025-05-28 17:21:36 +00:00
Code Issues Packages Projects Releases Wiki Activity
nvd-json-data-feeds/CVE-2021/CVE-2021-471xx/CVE-2021-47175.json
cad-safe-bot 1d2a2dbc2a Auto-Update: 2025-03-17T17:00:20.357330+00:00
2025-03-17 17:03:50 +00:00

139 lines
11 KiB
JSON
Raw Blame History

{
"id": "CVE-2021-47175",
"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"published": "2024-03-25T10:15:09.110",
"lastModified": "2025-03-17T15:02:54.260",
"vulnStatus": "Analyzed",
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet/sched: fq_pie: fix OOB access in the traffic path\n\nthe following script:\n\n # tc qdisc add dev eth0 handle 0x1 root fq_pie flows 2\n # tc qdisc add dev eth0 clsact\n # tc filter add dev eth0 egress matchall action skbedit priority 0x10002\n # ping 192.0.2.2 -I eth0 -c2 -w1 -q\n\nproduces the following splat:\n\n BUG: KASAN: slab-out-of-bounds in fq_pie_qdisc_enqueue+0x1314/0x19d0 [sch_fq_pie]\n Read of size 4 at addr ffff888171306924 by task ping/942\n\n CPU: 3 PID: 942 Comm: ping Not tainted 5.12.0+ #441\n Hardware name: Red Hat KVM, BIOS 1.11.1-4.module+el8.1.0+4066+0f1aadab 04/01/2014\n Call Trace:\n dump_stack+0x92/0xc1\n print_address_description.constprop.7+0x1a/0x150\n kasan_report.cold.13+0x7f/0x111\n fq_pie_qdisc_enqueue+0x1314/0x19d0 [sch_fq_pie]\n __dev_queue_xmit+0x1034/0x2b10\n ip_finish_output2+0xc62/0x2120\n __ip_finish_output+0x553/0xea0\n ip_output+0x1ca/0x4d0\n ip_send_skb+0x37/0xa0\n raw_sendmsg+0x1c4b/0x2d00\n sock_sendmsg+0xdb/0x110\n __sys_sendto+0x1d7/0x2b0\n __x64_sys_sendto+0xdd/0x1b0\n do_syscall_64+0x3c/0x80\n entry_SYSCALL_64_after_hwframe+0x44/0xae\n RIP: 0033:0x7fe69735c3eb\n Code: 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 f3 0f 1e fa 48 8d 05 75 42 2c 00 41 89 ca 8b 00 85 c0 75 14 b8 2c 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 75 c3 0f 1f 40 00 41 57 4d 89 c7 41 56 41 89\n RSP: 002b:00007fff06d7fb38 EFLAGS: 00000246 ORIG_RAX: 000000000000002c\n RAX: ffffffffffffffda RBX: 000055e961413700 RCX: 00007fe69735c3eb\n RDX: 0000000000000040 RSI: 000055e961413700 RDI: 0000000000000003\n RBP: 0000000000000040 R08: 000055e961410500 R09: 0000000000000010\n R10: 0000000000000000 R11: 0000000000000246 R12: 00007fff06d81260\n R13: 00007fff06d7fb40 R14: 00007fff06d7fc30 R15: 000055e96140f0a0\n\n Allocated by task 917:\n kasan_save_stack+0x19/0x40\n __kasan_kmalloc+0x7f/0xa0\n __kmalloc_node+0x139/0x280\n fq_pie_init+0x555/0x8e8 [sch_fq_pie]\n qdisc_create+0x407/0x11b0\n tc_modify_qdisc+0x3c2/0x17e0\n rtnetlink_rcv_msg+0x346/0x8e0\n netlink_rcv_skb+0x120/0x380\n netlink_unicast+0x439/0x630\n netlink_sendmsg+0x719/0xbf0\n sock_sendmsg+0xe2/0x110\n ____sys_sendmsg+0x5ba/0x890\n ___sys_sendmsg+0xe9/0x160\n __sys_sendmsg+0xd3/0x170\n do_syscall_64+0x3c/0x80\n entry_SYSCALL_64_after_hwframe+0x44/0xae\n\n The buggy address belongs to the object at ffff888171306800\n which belongs to the cache kmalloc-256 of size 256\n The buggy address is located 36 bytes to the right of\n 256-byte region [ffff888171306800, ffff888171306900)\n The buggy address belongs to the page:\n page:00000000bcfb624e refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x171306\n head:00000000bcfb624e order:1 compound_mapcount:0\n flags: 0x17ffffc0010200(slab|head|node=0|zone=2|lastcpupid=0x1fffff)\n raw: 0017ffffc0010200 dead000000000100 dead000000000122 ffff888100042b40\n raw: 0000000000000000 0000000000100010 00000001ffffffff 0000000000000000\n page dumped because: kasan: bad access detected\n\n Memory state around the buggy address:\n ffff888171306800: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00\n ffff888171306880: 00 00 00 00 00 00 00 00 00 00 00 00 fc fc fc fc\n >ffff888171306900: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc\n ^\n ffff888171306980: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc\n ffff888171306a00: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb\n\nfix fq_pie traffic path to avoid selecting 'q->flows + q->flows_cnt' as a\nvalid flow: it's an address beyond the allocated memory."
},
{
"lang": "es",
"value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: net/sched: fq_pie: arregla el acceso OOB en la ruta de tr\u00e1fico el siguiente script: # tc qdisc add dev eth0 handle 0x1 root fq_pie flows 2 # tc qdisc add dev eth0 clsact # tc filtrar agregar dev eth0 salida matchall acci\u00f3n skbedit prioridad 0x10002 # ping 192.0.2.2 -I eth0 -c2 -w1 -q produce el siguiente s\u00edmbolo: ERROR: KASAN: slab-out-of-bounds in fq_pie_qdisc_enqueue+0x1314/0x19d0 [sch_fq_pie] Leer de tama\u00f1o 4 en la direcci\u00f3n ffff888171306924 por tarea ping/942 CPU: 3 PID: 942 Comm: ping Not tainted 5.12.0+ #441 Nombre de hardware: Red Hat KVM, BIOS 1.11.1-4.module+el8.1.0+4066+ 0f1aadab 01/04/2014 Seguimiento de llamadas: dump_stack+0x92/0xc1 print_address_description.constprop.7+0x1a/0x150 kasan_report.cold.13+0x7f/0x111 fq_pie_qdisc_enqueue+0x1314/0x19d0 [sch_fq_pie] __dev_queue_x mit+0x1034/0x2b10 ip_finish_output2+0xc62/0x2120 __ip_finish_output+0x553/0xea0 ip_output+0x1ca/0x4d0 ip_send_skb+0x37/0xa0 raw_sendmsg+0x1c4b/0x2d00 sock_sendmsg+0xdb/0x110 __sys_sendto+0x1d7/0x2b0 __x64_sys_s endto+0xdd/0x1b0 do_syscall_64+0x3c/0x80 Entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x7fe69735c3eb C\u00f3digo: 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 f3 0f 1e fa 48 8d 05 75 42 2c 00 41 89 ca 8b 00 85 c0 75 14 b8 2c 00 00 00 0f 05 &lt;48 &gt; 3d 00 f0 ff ff 77 75 c3 0f 1f 40 00 41 57 4d 89 c7 41 56 41 89 RSP: 002b:00007fff06d7fb38 EFLAGS: 00000246 ORIG_RAX: 000000000000002c RAX: ffffffffffffffda RBX: 000055e961413700 RCX: 00007fe69735c3eb RDX: 0000000000000040 RSI: 000055e961413700 RDI: 0000000000000003 RBP: 0000000000000040 R08: 000055e961410500 R09: 00000000000000010 R10: 0000000000000000 R11: 0000000000000246 R12: 00007fff06d81260 R13: 00007fff06d7fb40 R14: 00007fff06d7fc30 R15: 000055e96140f0a0 Asignado por la tarea 917: kasan_save_stack+0x19/0x40 __kasan_kmalloc+0x7f/0xa0 __kmalloc_node+0x139/0x280 fq_pie_init+0x555/0x8e8 [ sch_fq_pie] qdisc_create+0x407/0x11b0 tc_modify_qdisc+0x3c2/0x17e0 rtnetlink_rcv_msg+0x346/0x8e0 netlink_rcv_skb+0x120/0x380 netlink_unicast+0x439/0x630 netlink_sendmsg+0x719/ 0xbf0 sock_sendmsg+0xe2/0x110 ____sys_sendmsg+0x5ba/0x890 ___sys_sendmsg+0xe9/0x160 __sys_sendmsg+0xd3 /0x170 do_syscall_64+0x3c/0x80 Entry_SYSCALL_64_after_hwframe+0x44/0xae La direcci\u00f3n con errores pertenece al objeto en ffff888171306800 que pertenece al cach\u00e9 kmalloc-256 de tama\u00f1o 256. La direcci\u00f3n con errores se encuentra 36 bytes a la derecha de la regi\u00f3n de 256 bytes [ffff888171306 800, ffff888171306900) La direcci\u00f3n del error pertenece a la p\u00e1gina: p\u00e1gina:00000000bcfb624e refcount:1 mapcount:0 mapeo:0000000000000000 index:0x0 pfn:0x171306 head:00000000bcfb624e order:1 composite_mapcount:0 flags: 0x17ffffc00 10200(losa|cabeza|nodo=0|zona =2|lastcpupid=0x1fffff) raw: 0017ffffc0010200 dead000000000100 dead000000000122 ffff888100042b40 raw: 000000000000000000 0000000000100010 00000001ffffffff 0000000000000000 p\u00e1gina volcada porque: kasan: se detect\u00f3 mal acceso Estado de la memoria alrededor de la direcci\u00f3n con errores: ffff888171306800: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ffff888171306880: 00 00 00 00 00 00 00 00 00 00 00 00 fc fc fc fc &gt;ffff888171306900: fc fc fc fc fc fc fc fc fc fc fc fc fc fc ^ ffff888 171306980: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ffff888171306a00: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb corrige la ruta de tr\u00e1fico fq_pie para evitar seleccionar 'q-&gt;flows + q-&gt;flows_cnt' como un flujo v\u00e1lido: es una direcci\u00f3n m\u00e1s all\u00e1 de la memoria asignada."
}
],
"metrics": {
"cvssMetricV31": [
{
"source": "nvd@nist.gov",
"type": "Primary",
"cvssData": {
"version": "3.1",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H",
"baseScore": 7.1,
"baseSeverity": "HIGH",
"attackVector": "LOCAL",
"attackComplexity": "LOW",
"privilegesRequired": "LOW",
"userInteraction": "NONE",
"scope": "UNCHANGED",
"confidentialityImpact": "HIGH",
"integrityImpact": "NONE",
"availabilityImpact": "HIGH"
},
"exploitabilityScore": 1.8,
"impactScore": 5.2
}
]
},
"weaknesses": [
{
"source": "nvd@nist.gov",
"type": "Primary",
"description": [
{
"lang": "en",
"value": "CWE-125"
}
]
}
],
"configurations": [
{
"nodes": [
{
"operator": "OR",
"negate": false,
"cpeMatch": [
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "5.6",
"versionEndExcluding": "5.10.42",
"matchCriteriaId": "E3E2EC44-45C1-4B05-8C62-77FF73DE23CA"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "5.11",
"versionEndExcluding": "5.12.9",
"matchCriteriaId": "2C8A1D02-81A7-44E5-ACFD-CC6A6694F930"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:5.13:rc1:*:*:*:*:*:*",
"matchCriteriaId": "0CBAD0FC-C281-4666-AB2F-F8E6E1165DF7"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:5.13:rc2:*:*:*:*:*:*",
"matchCriteriaId": "96AC23B2-D46A-49D9-8203-8E1BEDCA8532"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:5.13:rc3:*:*:*:*:*:*",
"matchCriteriaId": "DA610E30-717C-4700-9F77-A3C9244F3BFD"
}
]
}
]
}
],
"references": [
{
"url": "https://git.kernel.org/stable/c/7a1bdec12e43e29cc34a4394590337069d8812ce",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"tags": [
"Patch"
]
},
{
"url": "https://git.kernel.org/stable/c/e6294c06e7c62ffdd5bf3df696d3a4fcbb753d3c",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"tags": [
"Patch"
]
},
{
"url": "https://git.kernel.org/stable/c/e70f7a11876a1a788ceadf75e9e5f7af2c868680",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"tags": [
"Patch"
]
},
{
"url": "https://git.kernel.org/stable/c/7a1bdec12e43e29cc34a4394590337069d8812ce",
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Patch"
]
},
{
"url": "https://git.kernel.org/stable/c/e6294c06e7c62ffdd5bf3df696d3a4fcbb753d3c",
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Patch"
]
},
{
"url": "https://git.kernel.org/stable/c/e70f7a11876a1a788ceadf75e9e5f7af2c868680",
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Patch"
]
}
]
}
Reference in New Issue View Git Blame Copy Permalink