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nvd-json-data-feeds/CVE-2024/CVE-2024-566xx/CVE-2024-56661.json
cad-safe-bot 888c7a9ac7 Auto-Update: 2025-01-06T19:00:28.740053+00:00
2025-01-06 19:03:52 +00:00

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{
"id": "CVE-2024-56661",
"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"published": "2024-12-27T15:15:25.960",
"lastModified": "2025-01-06T18:49:40.310",
"vulnStatus": "Analyzed",
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\ntipc: fix NULL deref in cleanup_bearer()\n\nsyzbot found [1] that after blamed commit, ub->ubsock->sk\nwas NULL when attempting the atomic_dec() :\n\natomic_dec(&tipc_net(sock_net(ub->ubsock->sk))->wq_count);\n\nFix this by caching the tipc_net pointer.\n\n[1]\n\nOops: general protection fault, probably for non-canonical address 0xdffffc0000000006: 0000 [#1] PREEMPT SMP KASAN PTI\nKASAN: null-ptr-deref in range [0x0000000000000030-0x0000000000000037]\nCPU: 0 UID: 0 PID: 5896 Comm: kworker/0:3 Not tainted 6.13.0-rc1-next-20241203-syzkaller #0\nHardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024\nWorkqueue: events cleanup_bearer\n RIP: 0010:read_pnet include/net/net_namespace.h:387 [inline]\n RIP: 0010:sock_net include/net/sock.h:655 [inline]\n RIP: 0010:cleanup_bearer+0x1f7/0x280 net/tipc/udp_media.c:820\nCode: 18 48 89 d8 48 c1 e8 03 42 80 3c 28 00 74 08 48 89 df e8 3c f7 99 f6 48 8b 1b 48 83 c3 30 e8 f0 e4 60 00 48 89 d8 48 c1 e8 03 <42> 80 3c 28 00 74 08 48 89 df e8 1a f7 99 f6 49 83 c7 e8 48 8b 1b\nRSP: 0018:ffffc9000410fb70 EFLAGS: 00010206\nRAX: 0000000000000006 RBX: 0000000000000030 RCX: ffff88802fe45a00\nRDX: 0000000000000001 RSI: 0000000000000008 RDI: ffffc9000410f900\nRBP: ffff88807e1f0908 R08: ffffc9000410f907 R09: 1ffff92000821f20\nR10: dffffc0000000000 R11: fffff52000821f21 R12: ffff888031d19980\nR13: dffffc0000000000 R14: dffffc0000000000 R15: ffff88807e1f0918\nFS: 0000000000000000(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000\nCS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033\nCR2: 0000556ca050b000 CR3: 0000000031c0c000 CR4: 00000000003526f0\nDR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000\nDR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400"
},
{
"lang": "es",
"value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: tipc: se corrige la deref NULL en cleanup_bearer() syzbot encontr\u00f3 [1] que despu\u00e9s de el commit culpada, ub-&gt;ubsock-&gt;sk era NULL al intentar atomic_dec() : atomic_dec(&amp;tipc_net(sock_net(ub-&gt;ubsock-&gt;sk))-&gt;wq_count); Solucione esto almacenando en cach\u00e9 el puntero tipc_net. [1] Ups: error de protecci\u00f3n general, probablemente para la direcci\u00f3n no can\u00f3nica 0xdffffc0000000006: 0000 [#1] PREEMPT SMP KASAN PTI KASAN: null-ptr-deref en el rango [0x000000000000030-0x0000000000000037] CPU: 0 UID: 0 PID: 5896 Comm: kworker/0:3 No contaminado 6.13.0-rc1-next-20241203-syzkaller #0 Nombre del hardware: Google Google Compute Engine/Google Compute Engine, BIOS Google 13/09/2024 Cola de trabajo: eventos cleanup_bearer RIP: 0010:read_pnet include/net/net_namespace.h:387 [en l\u00ednea] RIP: 0010:sock_net include/net/sock.h:655 [en l\u00ednea] RIP: 0010:cleanup_bearer+0x1f7/0x280 net/tipc/udp_media.c:820 C\u00f3digo: 18 48 89 d8 48 c1 e8 03 42 80 3c 28 00 74 08 48 89 df e8 3c f7 99 f6 48 8b 1b 48 83 c3 30 e8 f0 e4 60 00 48 89 d8 48 c1 e8 03 &lt;42&gt; 80 3c 28 00 74 08 48 89 df e8 1a f7 99 f6 49 83 c7 e8 48 8b 1b RSP: 0018:ffffc9000410fb70 EFLAGS: 00010206 RAX: 0000000000000006 RBX: 0000000000000030 RCX: ffff88802fe45a00 RDX: 0000000000000001 RSI: 0000000000000008 RDI: ffffc9000410f900 RBP: ffff88807e1f0908 R08: ffffc9000410f907 R09: 1ffff92000821f20 R10: dffffc0000000000 R11: fffff52000821f21 R12: ffff888031d19980 R13: dffffc0000000000 R14: dffffc0000000000 R15: ffff88807e1f0918 FS: 0000000000000000(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000556ca050b000 CR3: 0000000031c0c000 CR4: 00000000003526f0 DR0: 00000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400"
}
],
"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:N/I:N/A:H",
"baseScore": 5.5,
"baseSeverity": "MEDIUM",
"attackVector": "LOCAL",
"attackComplexity": "LOW",
"privilegesRequired": "LOW",
"userInteraction": "NONE",
"scope": "UNCHANGED",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"availabilityImpact": "HIGH"
},
"exploitabilityScore": 1.8,
"impactScore": 3.6
}
]
},
"weaknesses": [
{
"source": "nvd@nist.gov",
"type": "Primary",
"description": [
{
"lang": "en",
"value": "CWE-476"
}
]
}
],
"configurations": [
{
"nodes": [
{
"operator": "OR",
"negate": false,
"cpeMatch": [
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:5.4.287:*:*:*:*:*:*:*",
"matchCriteriaId": "270B5743-09BB-4393-B8A8-86C7EAAB8DAC"
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"matchCriteriaId": "52A2191E-D354-4732-9A39-C4059434873F"
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"matchCriteriaId": "36894D4E-0255-4309-B4D2-06ED50D7D076"
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"matchCriteriaId": "F9807ED9-EBAB-45B9-AC9D-FA54900DD0DC"
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"matchCriteriaId": "5A073481-106D-4B15-B4C7-FB0213B8E1D4"
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"references": [
{
"url": "https://git.kernel.org/stable/c/07b569eda6fe6a1e83be5a587abee12d1303f95e",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"tags": [
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}
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